Winter's parting shot?

Grey skies and a light dusting of snow are greeting Montreal early Tuesday morning, as low pressure moves along the US border. What could be the last snow of the season today, will accumulate a few centimetres in the city, up to as much as 15cm north and west of Montreal and across parts of the Eastern Townships. (Valley Weather Photo)

Low pressure moving along the International border early Tuesday morning, is spreading a mix of wintry precipitation across southern Quebec. Roads in many cases are slick, so expect slow travel today. Strong west winds behind a cold front early this morning, are dropping temperatures and changing any mixed precipitation to snow, which will persist in various intensities throughout the day.

Light snow is falling Tuesday morning across a wide swath of our area from eastern Ontario into western Quebec and northern New England. Depending on where you are located in the region, you have a dusting up to several centimetres of fresh snow on the ground. The highest elevations of the Eastern Townships and northern Vermont could see up to 25cm of snow by Wednesday morning.

In Montreal, it took most of the overnight hours for temperatures to fall to the freezing point, and snow to begin. Most of the accumulating snow has fallen north and west of Montreal, including Ottawa. Here in Montreal, there is just a dusting on grassy surfaces as well as your car. However snowfall warnings have been issued for Ottawa and parts of eastern Ontario, with 10-15cm expected. Keep this in mind if your travels today take you along Highways 401, 416 or 417.

Drive carefully today, as temperatures are falling and will remain below freezing for the entire day. Any further precipitation will be in the form of snow, with an additional 5cm possible for most locations. Winds will be gusty, out of the northwest 40-60km/h. Our high will actually drop to -4C (25F), and fall further to a vey chilly April low of -8C (18F). On Wednesday, we can expect partly cloudy skies, with a blustery high of 1C (34F). The normal high for mid-April in Montreal should be close to 10C (50F).

Mild and wet weather returns for the weekend, as low pressure moves along the eastern seaboard.

Rainy and chilly weekend forecast for southern Quebec

Quebec Public Security is currently monitoring the flow of several rivers in the Montreal region. Water levels are slowly on the rise in response to a wet start to April, combined with warm temperatures, melting snow and ice. More rain is forecast this weekend. The photo above was taken along the shores of Lake of Two Mountains during the major spring flood of 2019. (West Island Flood Volunteers Photo)

The sun finally broke out on Friday, albeit slightly cooler than Thursday, when south winds pushed temperatures into the upper teens. After a chilly morning low at the freezing point, along with wet snow, I managed a high of 21C (70F) on Ile Perrot Thursday afternoon. Under bright sunshine Friday, we should make it to 10C (50F).

Mixed precipitation late Wednesday, eventually gave way to scattered thunderstorms along with some heavy rain into the morning hours on Thursday. Trudeau Airport reported 24 hour rain totals of 25.4mm, I measured 32.4mm on Ile Perrot. 

All that rain, combined with any remaining snow and ice that is melting, has caused area rivers to be on the rise. Quebec Public Security is currently watching 8 rivers and lakes in the province, most of those in the southwestern corner, including Lake of Two Mountains at Sainte-Anne-de-Bellevue and the Rivière des Mille Îles at Terrebonne and Deux-Montagnes. Levels are also rising along the Ottawa River from Ottawa to Montreal.

All rivers will be watched closely this week as another wet and windy area of low pressure moves to the south of Montreal. This system will bring steady rain on Saturday, tapering to showers on Sunday. Between 15-25mm of additional rainfall is possible through Sunday.  The weather will be raw and windy this weekend, with temperatures just above the freezing point for many locations. There is a chance of some mixed wet snow or freezing rain at the onset on Saturday, especially for locations north of Montréal and in the Ottawa Valley.

Gusty winds of 30-60km/h are likely for the St. Lawrence Valley.

Another storm will take aim at southern Quebec on Tuesday, with a mix of rain and snow expected. Temperatures will be quite cold to start the work week. 

More rain and freezing rain forecast for southern Quebec

More rounds of freezing rain and rain are forecast for the hard-hit portions of central Ontario. Many residents remain without power, and schools have been closed since Monday. (Hydro One Photo)

A warm front will lift into the St. Lawrence Valley late Wednesday, as low pressure moves into the central Great Lakes. That front will become the focus for mixed precipitation across southern Quebec, followed by a windy and wet cold front on Thursday.

Widespread weather warnings are in effect across portions of Ontario and Quebec and adjacent New York as another storm system takes aim at our region. The system arrives late Wednesday in Montreal, with a burst of snow, followed by a messy mix of freezing rain and rain through midnight. Precipitation will switch over to rain overnight in the immediate St. Lawrence Valley as warm air surges northward. Before the changeover, some regions may receive up to 5cm of wet snow, along with 2 to 4mm of freezing rain.

On Thursday, expect rain, heavy at times, accompanied by thunder, and gusty southwest winds up to 60km/h. Temperatures were cold on Wednesday morning, dropping down to -8C (18F) here on Ile Perrot. The high Wednesday will ne near the freezing point. Temperatures will continue to warm overnight, to a high of 16C (60F) in Montreal on Thursday.

Further north and east, the cold air will linger longer, and those regions are under freezing rain warnings, as is the Ottawa Valley and large portions of eastern Ontario.

In Ontario, many regions that were hit hard by the worst ice storm since 1998, are unfortunately looking at more freezing rain and rain tonight. Strong winds will accompany the precipitation, only exasperating the tree and power line damage. Nearly 215,000 customers remain without power in central Ontario after the severe weekend ice storm dumped over 25mm of freezing rain on the region. There are several municipalities under a state of emergency and schools in the region remain closed.

Briefly looking ahead, we have more unsettled weather expected this weekend, with a mix of rain and snow forecast, Details to follow.

Montreal spared from the worst of the weekend storm

While Montreal was spared the worst of the weekend ice storm, such was not the case across central and eastern Ontario. Above, Hydro One crews clear away debris in an effort to restore power near Barrie, Ontario on Sunday. Nearly a half million customers were without power in Ontario on Sunday. (Hydro One)

Strong low pressure moving along a nearly stationary boundary over the weekend, produced a wide area of wintry precipitation. Montreal and most of our region was spared the worst of the storm. Still the messy mix of freezing rain and snow resulted in numerous accidents, and a long list of power outages north and east of the city. Early Monday morning, Hydro-Quebec is reporting over 75,000 customers without power, the majority of those in the Laurentians and Lanaudière regions where more freezing rain fell.

Here in Montreal, anywhere from 3 to 10cm of snow fell early Saturday from southwest to northeast across the region. Officially, Trudeau Airport reported just over 3cm, while I measured 6cm on Ile Perrot. That was followed by an additional 21.1mm of rain, much of that freezing on power lines and trees. The good news for extreme southern Quebec was that most of the precipitation fell at a slow rate, with melting occurring in between. The lessened the ice accretion on trees and power lines, sparing Montreal from the worst of the storm. 

Such was not the case north of Montreal where the freezing rain continued, at times heavy, into Monday morning. In Ontario, heavy amounts of freezing rain, often accompanied by thunder and lightning, spread from Lake Huron inland across central portions of the province on Friday evening into Saturday. Many regions were hard hit with 25 to 50mm of ice, including Barrie, Peterborough, Goderich and the Muskokas to name a few. Significant damage has occurred to trees and the power grid. As of Monday morning, nearly 400,000 residents remain in the dark. Despite the heroic effort of the utility crews, the damage is severe, and the power may be out for days. Several central Ontario communities have declared a State of Emergency on Monday, closing schools and advising resident to stay off debris filled roads.

Thousands of trees have been damaged or destroyed across Ontario, many falling onto homes and cars. The focus of the ice storm was from northern Michigan, across central Ontario and into central New York State, just southwest of Montreal.

Temperatures will warm quickly on Monday across the entire region, helping to melt the ice, but with an added problem. Gusty southwest winds are forecast across the southern Ontario and Quebec Monday, between 40-60km/h, backing to the northwest tonight behind a strong cold from, 30-50km/h. This will cause additional damage to the weakened and ice loaded trees and power lines across the most hard-hit regions.

Here in Montreal, we can expect a very warm and windy Monday, with a high near 15C (59F). Some showers and perhaps a rumble of thunder are possible. Much colder weather returns tonight and Tuesday, with overnight lows dropping rapidly to -3C (27F). Tuesday will be partly unny, and colder with a high of 4C (39F). 

More stormy weather is on the way for Wednesday, more on that later.

Freezing rain warning for Montreal Sunday

A significant amount of freezing rain is forecast for parts of southern Quebec and eastern Ontario this weekend. Montreal is forecasting up to 10mm of ice accretion, while parts of central and eastern Ontario may see up to 25mm. Travel will be poor and power outages are possible.

Freezing rain warning in effect for Montreal.

A rather impactful spring storm is underway across extreme southwestern Quebec and portions of Ontario and adjacent New York and New England. A frontal boundary to our south has been the focus for areas of snow and freezing rain overnight. Across the Montreal region, several centimetres of snow have fallen, but the heaviest precipitation remains southwest of the city. With that said, roads are still snow covered and slippery this morning, especially southwest of the city on Highways 20/401 to Cornwall and Highway 40/416 to Ottawa. The Ottawa Airport was reporting 0.8km visibility in heavy snow at 4am. Gusty winds are forecast from the northeast 30-50km/h today.

Across portions of central and eastern Ontario, significant amounts of freezing rain fell overnight with power outages increasing in the region. Scattered thunderstorms with freezing rain were even observed. Over 25,000 residents are in the dark, and that number is increasing.

For Saturday, Montreal will remain on the cold northern side of the front, with light snow tapering off by midday. High temperatures will struggle to reach 0C (32F). There will be a break in the precipitation this afternoon, before the front begins to move northward tonight, A surge of unseasonably warm air will move over the cold air at the surface here in the St. Lawrence Valley, producing widespread freezing rain tonight and most of the day Sunday in Montreal. Up to 10mm of freezing rain is possible, resulting in slippery roads and sidewalks, as well as scattered power outages.

The front will eventually move north of Montreal, allowing much warm air to arrive, and changing any remaining precipitation to rain late Sunday into Monday. Highs on Monday will reach 14C (56F). There will be a strong cold front arriving late afternoon, with showers and even a rumble of thunder possible, followed by much colder weather for Tuesday.

Partial solar eclipse visible across eastern Canada Saturday morning

NASA image of a partial solar eclipse at sunrise. The view would be quite similar in Montreal at sunrise Saturday morning, until 7:13AM, if only skies were clear. A strong late season storm is forecast to bring clouds and snow to the region tonight into Saturday. (NASA)

If you live in extreme eastern Canada or the northeastern US, dust off your solar eclipse glasses from last April. A partial solar eclipse will take place at sunrise across eastern Canada on Saturday morning, March 29. The eclipse will be most visible across portions of Northern Quebec and Nunavut, where up to 90 percent of the sun will be shaded by the passing moon. That includes nearly 92 percent in Iqualit. By comparison Montreal will have a maximum of 47 percent with St. John's and Halifax at 83 percent.

Across the remainder of Quebec from the Ontario border east, as well as portions of Vermont, New Hampshire, Maine and Atlantic Canada, the eclipse will range from 8 to 45 percent.

Here in Montreal, stormy weather will likely spoil the celestial view at sunrise. But if skies were clear, the eclipse would begin at 5:29AM, becoming visible with the sunrise around 6:39AM, reaching maximum at 6:42AM and ending by 7:13AM. The visible portion will last approximately 34 minutes here in Montreal, and cover up to 47 percent of the sun. Once again, the weather will likely not be favourable for viewing.

As with any solar eclipse, it is important not to stare directly into the sun. Approved solar eclipse glasses must be worn at all times to view the eclipse or stare directly into the sun at any time. Damage can occur very quickly to your eyes.

If you are fortunate enough to have clear skies at your location, then enjoy the view, have fun and be safe.

Significant ice and snowstorm possible Saturday for Ontario and Quebec

Winter battled back in Montreal this week, with chilly temperatures and plenty of snow showers and squalls. Another round of winter weather is on the way for the upcoming weekend. This weather should not be a surprise to anybody who has lived in Montreal for more than 5 minutes. Late March and April have historically produced some big storms for the city. (Valley Weather Photo)

Special Weather Statement posted for Montreal and Ottawa for a significant late season winter storm this weekend.

High pressure is providing us with a sunny, cool Thursday, after a week of clouds and flurries. Some of the flurries were heavy at times, reducing visibility and glazing roads. With chilly overnight lows at or below freezing, there has been plenty of black ice, resulting in some serious accidents. 

After the sunshine of Thursday, we have a very complex weather scenario setting up for the weekend. Arctic high pressure lies to our north, along with an unseasonably strong Bermuda high to our south. The St. Lawrence Valley will become the battleground between the two airmasses. 

A front will lie just to our south, with low pressure riding along it late Friday and again on Sunday. Heavy precipitation will fall along and to the north of the front. This boundary will separate very warm air, over 21C (70F) surging north into southern New England from sub-zero temperatures, -2C (29F) here in Montreal. Northeast winds will keep surface temperatures below freezing in Montreal into Sunday.

There are lots of details to work out, including the exact location of the front. Some areas in southern Quebec and eastern Ontario can expect heavy snow, followed by a significant amount of freezing rain. Despite the angle of the warming March sun, the April 2023 ice storm taught us the significant damage can still be done from freezing rain in spring.

At this time in excess of 25mm (1 inch) of precipitation is possible for Montréal over the weekend. Some models are showing as much as 50mm. The storm will come at us in all forms from heavy snow Friday and Saturday, to freezing rain and eventually rain on Sunday and Monday.

Plan on difficult travel conditions as well as the potential for tree damage and power outages. Stay tuned for updated forecast and warnings over the next 24 hours. This story will be updated.

Winter strikes back in Montreal

The City of Montreal prematurely started cleaning away winter debris last week, a full two weeks ahead of schedule. Unfortunately Mother Nature has the last laugh Monday morning a more snow fell. And we may not be done with the snow just yet. (Ville de Montreal)

More snow expected this weekend.

The City of Montreal started their spring cleaning last week, a full two weeks ahead of schedule, thanks in part to what Mayor Plante called "climate change". With all do respect to Madame Plante and our warming climate, this is March in Montreal. Anybody who has lived here for more than 5 minutes knows that winter is not really over until around Easter as a rule. Even then, it has snowed in Montreal in May!

Several centimetres of snow surprised commuters early Monday morning, covering roads quickly and resulting in several serious collisions. The snow gradually changed to rain in the afternoon. More snow is on the way for the upcoming weekend. (Valley Weather)

And so it goes, Monday morning, a warm front lifted across the region accompanied by a pretty decent shot of snow. Unfortunately the snow arrived during the morning commute, and resulted in several serious accidents, including one that closed Highway 20 near Les Cedres off the western tip of the island. Montreal provided very little in the way of sanding and salting, so it was up to motorists to navigate snow covered and icy roads. The snow gradually tapered off to showers in the afternoon, but not before depositing a few centimetres and raising the monthly total up to over 10cm. A significantly smaller amount when compared to February for sure, but disruptive nonetheless.

The same weather impacted eastern Ontario on Monday, with a rash of  accidents being reported form Ottawa down to the Seaway Valley.

Many drivers heave already removed their snow tires, something I would not recommend until at least mid-April, despite what the rule reads.

Looking ahead, we have a very unsettled, rather chilly week ahead. Showers will mix with flurries at times Tuesday and Wednesday, with temperatures in the single digits for highs. High pressure will build into southern Quebec briefly on Thursday, with sunshine and milder temperatures. The active weather will return this weekend, with a stronger storm moving from the Ohio Valley towards southern Quebec. Another period of wet snow and rain is possible, with some accumulations likely. 

Winter is not quite over. Please drive safe.

***On a personal note, I want to thank all my readers, family and friends for your kind words and notes over the loss of my trusted weather companion Bella. It has been a sad week for me as I navigate the new normal without my furry sidekick of 14 years. Read about my Bella HERE.

Saying goodbye to Bella - my all-weather pup

My beloved all-weather pup, Bella, the little dog with the big heart and attitude to match. She was my world. I will miss her every second of every day.

On a beautiful first day of spring in Montreal, I said goodbye to my beloved pup Bella. At 16, Bella had developed some serious health issues over the last two weeks and let me know her work here was done. It was the most difficult decision I have had to make in my entire life.

Bella came to us from Kiko Dog Rescue in 2011. A misfit of sorts, she was a perfectly imperfect terrier with a heart of gold and the idea that somehow, she was bigger than her 20 pounds. She quickly showed me why,  you see Bella, was a survivor. Born at a puppy mill and passed around to several homes, she had an edge that we softened quickly. I understood her. She understood me. And so forged a relationship that would flourish for 14 strong years. Bella loved me, her greeting every night was epic. Our neighbours knew when I was home. Bella and I shared our space, our time. We had a profound respect for each other, we even shared Chapman's vanilla frozen yogurt.

So why talk about her on my weather blog? Bella was an all-weather dog. We walked daily, often 2-3 times everyday, regardless of the weather. By my count over 14,000 walks in those 14 years. Most of the images you see on this blog were taken with her by my side or in the car with me.

We walked in every type of weather, without fail, heavy snow and rain, warm or cold. Every day. Every season. We both loved fresh snow. Bella loved chasing falling leaves. During the April 2023 ice storm, we walked in darkness during the early morning hours, around downed trees, and cuddled on the couch for warmth as power was out for days. As well we watched countless sunrises and sunsets.

Most recently we viewed the ending stages of the lunar eclipse. Bella was an early riser, motivated by the thought of breakfast after our walk. Followed by some couch time, while I reviewed the different forecast discussions and commuter weather models.

Bella and I visited the historic weather office in Hatteras, North Carolina on the Outer Banks in September 2018. (ValleyWeather Photo)

Bella even accompanied me to one of the first weather offices on the Eastern Seaboard when we visited Cape Hatteras, North Carolina in September 2018, just after hurricane Florence. Our trip was almost cancelled due to the storm, but in the end the barrier islands were reopened just in time.

Bella never failed me. Her love was pure and unconditional. She knew me, I knew her. Eagerly she would wait at the door every morning, even in her final days. Today, Friday, March 21, there was no walk for the first time in 14 years. Bella thought I had all the answers. I thought she did. I had no answer for this. The grief is deep. My heart is broken. They say time heals, we shall see.

Late season winter storm brings tornadoes, blizzards, flooding and record warmth

A Missouri State Highway Patrol Police cruiser illuminates the immediate aftermath of a powerful tornado, still visible in the background, near Bakersfield, Missouri. Three fatalities were reported form this storm, with 35 across the US from dozens of tornadoes since Friday evening. The same system produced record warmth in southern Ontario and Quebec. (Missouri State Highway Patrol Photo)

A powerful late season winter storm is lifting into the Great Lakes on Sunday afternoon, dragging a potent cold front across eastern Ontario and eventually southwestern Quebec. The storm has been responsible for numerous fatalities as it moved northward. A wide range of weather has accompanied the storm, from dust storms and hurricane force winds, to wildfires, tornadoes, flash flooding and even heavy snow along the western edge.

The heavy snow and strong winds are impacting parts of central Ontario on Sunday. Meanwhile here in southern Quebec, record warmth has spread into the region. On Saturday, Montreal reached 17.3C (63F), shattering the 1913 record for the date of 12.8C (55F). So far on Sunday, we have tied the 2010 record, currently at 13.1C at Trudeau Airport. The hot spot in the Quebec on Saturday was 19.4C (67F) at Beauceville.

South of the border, an intense outbreak of severe weather resulted in dozens of tornadoes across several states from Missouri to Pennsylvania and south to the Gulf Coast. Nearly 35 deaths occurred from the tornados, with a least a dozen more form major car accidents as a result of blowing dust in Texas and Kansas. Damage is complete in many small communities form powerful tornadoes, including Bakersfield, Missouri, Diaz and Cave City in Arkansas.

In our region, the very warm temperatures, melting snow and ice along with today's rainfall, is raising concern for river flooding. Several rivers in the region are on the rise and being watched closely.

There is a risk of a few showers and thunderstorms Sunday afternoon in southern Quebec, along with gusty winds up to 60km/h. The cold front will clear the region overnight, setting us up for clearing skies on Monday, along with more seasonable temperatures. The high is forecast to be only 2C (35F). Monday night will be quite chilly, dropping own to -8C (18F). The middle portion of the week will see mild temperatures return, along with showers.

Lunar Eclipse visible in Montreal Friday morning

A spectacular lunar eclipse of the full worm moon will take place in the pre-dawn hours on Friday morning. The eclipse will be visible across North America as well as other parts of the globe. The weather looks perfect for viewing here in Montreal. (Photo: Fred Espenak, NASA)

A total lunar eclipse will take place in the wee hours of Friday morning, visible across all of North America, including here in Montreal. The eclipse begins just prior to midnight Thursday at 11:57PM, reaching maximum totality at 2:58AM Friday morning, and ending completely by 6AM, lasting a total of 6 hours and 3 minutes.

Totality will occur between 2:26AM and 3:31AM.

The eclipse of the full worm moon will occur as the earth passes between the sun and the moon. The moon will take on a reddish copper hue, often referred to as a blood moon. The weather for the event will be near-perfect in Montreal and across southern Québec and eastern Ontario, with clear skies, light winds, and a temperature around -4C (26F) expected.

Unlike a solar eclipse, there is no zero-danger in watching the lunar event. Dress warmly, grab your camera, tripod or binoculars and enjoy the celestial show.

The next total lunar eclipse will be on March 3, 2026.

After record warmth - a flash freeze for Montreal

The weather this March has been highly variable, typical of the first month of spring as the air masses battle it out. Temperatures have swung wildly, with a mix of rain and snow. To date 8.6cm of snow has fallen at Trudeau Airport, along with  8.2mm of rain. After the sharp cold of Tuesday night and Wednesday, very warm air will return for the weekend along with rain. (Valley Weather Photo)

Flash freeze warning posted for southern Quebec Tuesday evening 

Temperatures soared into the low teens in Montreal on Tuesday, on strong and gusty south winds between 30 and 50km/h. The high reached 15C (59F) on Ile Perrot, slightly lower at Trudeau Airport, with 12C (54F). The record for the date was 11.8C (53F), set in 2021. Clouds have been on the increase all afternoon, as a strong cold front is moving east across Ontario towards Montreal.

A flash freeze warning has been issued for southern Quebec, with temperatures expected to fall rapidly behind the front. Winds are forecast to back to the west, and gust between 40 and 60km/h Tuesday evening. Showers will develop along the front and briefly mix with wet snow before ending by midnight. Any standing water will freeze as temperatures fall below freezing, down to -11C (12F) by morning. Windchill values will approach -18C (0F), a nearly forty degree plunge from Tuesday afternoon's high temperatures.

Wednesday will be blustery and chilly, with highs near -3C (27F). The good news is that the cold snap will be short-lived, as very warm temperatures along with rain return by the weekend. However, the threat for flooding will be on the rise as ice and snow across the region begin to melt quickly.

Chilly, windy weekend for Montreal - warmer weather returns next week

Frozen in Time!
Several vehicles remain parked along Dr. Frederik-Philips in Saint-Laurent, seemingly frozen in time. Huge mountains of snow remain in parking lots around the city. A thaw began this week as temperatures warmed well-above freezing for several days, accompanied by rain. Officially Trudeau Airport is reporting only 4cm of snow left on the ground, unofficially I have several of feet left in my back yard! (Valley Weather Photo)

Spring forward Sunday morning at 2AM, as Daylight Saving Time returns to most of North America.

Montreal had a brief taste of spring this week, accompanied by mild temperatures and rain. Monday, was the coldest morning of the winter in Montreal at -22C (-8F), followed just as quickly by the warmest high of the year to date on Wednesday, when the mercury rose to 8.7C (48F). A period of wet snow late Monday quickly transitioned to rain before a strong cold front arrived late Thursday. Amounts were lighter than forecast with 5.4cm of snow so far this month, and 8.2mm of rain.

The bulk of the moisture remained to our west as a powerful late winter storm moved from Colorado to the Great Lakes. Blizzard conditions spread from Iowa into western Ontario, with severe weather and tornadoes on the warm side of the storm from Texas to Ohio. Rain and very warm temperatures rose the risk of river flooding across New England.

Late Thursday, temperatures fell rapidly, along with a centimetre or two of snow, as a strong cold front pushed across the region. High pressure will briefly build into southern Quebec Friday morning, but the weather will remain unsettled through the upcoming weekend. A series of weak disturbances in the upper atmosphere will produce clouds and occasional flurries from late Friday through late Sunday. Winds will be gusty, up to 60km/h today and Saturday. Temperatures will be below normal for the weekend, remaining below freezing, but will warm significantly next week, with more rain possible.

At this time, no major storms or on the horizon, along with a general warming trend. Could this finally be the end of winter! Time will tell.

Warmer, rainy weather returns this week to Montreal

Roads were slick on Ile Perrot early Saturday morning after 9cm of snow fell overnight at my home. Amounts ranged from 8 to 15cm across southern Quebec, but oddly only 5cm officially at Trudeau Airport, just 25km northeast of my location. Strong winds gusted over 50km/h Saturday afternoon and Sunday producing areas of blowing snow, cold windchills and slippery road conditions. Much warmer weather returns this week, along with rain. (Valley Weather Photo) 

Special Weather Statement posted for southern Quebec for heavy rain midweek.

Monday morning was the coldest of the winter so far at Trudeau Airport, with the temperature dropping to -22C (-8F). This should stand as the coldest for the season, with milder air returning this week, and no polar air in sight through March. Spring is really just around the corner!

For the short-term, we are looking at a chilly Monday, but not as cold as Sunday's . Winds will be much lighter, and the warm March sun will help temperatures climb from the deep freeze up to -5C (23F). The balance of the week will be unsettled to say the least. Clouds will increase Monday night ahead of a warm front lifting across the Ohio valley and Great Lakes.

Strengthening low pressure will move from the southern US plains towards the Ottawa Valley by midweek, pushing a warm and increasingly moist airmass over southern Quebec and eastern Ontario. The result will be a moderate round of precipitation, starting as snow late Tuesday in Montreal, but changing over to rain by Wednesday morning. There may be some brief freezing rain in the transition, but any ice accretion would be minimal.

The bigger concern will be the 15-25mm of rain expected on Wednesday and Thursday, as temperatures soar above freezing to 6C (43F). With frozen ground, ice covered rivers and mounds of deep snow around, flooding is a possibility. Make certain any drains, sewers and downspouts are clear of snow and debris.

Over the weekend an additional 10-15cm of new snow fell across the region, officially 6cm at Trudeau Airport, but I measured 9cm on Ile Perrot.

Behind the storm on Friday, we can expect colder weather, with a high of -1C (30F), along with scattered flurries and gusty winds.

A look back over 50 years: The Montreal Blizzard of 1971

MARCH 3-5, 1971: 47cm of snow, 110km/h winds, 17 hours of blizzard conditions in Montreal. 

Click below for the full story, interviews, photos and memories.

Today marks the 54th Anniversary of the storm of the century in Montreal. A fierce blizzard brought Montreal to a standstill for several days. You can read the full story HERE.

The streets were clogged with deep snow for days. Power was out to tens of thousands across the province. It was a true storm.
Photos from Radio Canada & Montreal Archives.

Another snowstorm on the way for winter-weary Montreal

February has been a very busy month for snow clearing crews in Montreal and across southern Quebec. They have been working long hours after 102.6cm of snow fell on the city this month, most of that over the last two weeks. More snow is on the way Friday night into Saturday, with 10-20cm forecast. (Photo: Ville de Montreal)

Winter weather travel advisory for the St. Lawrence Valley including Montreal.

Snowfall warning for the Ottawa Valley and the Laurentians

March is expected to roar in like a lion, with a period of heavy snow forecast for the region tonight and early Saturday. Accumulations of 10-20cm are possible. Travel will be difficult, with reduced visibility in falling and blowing snow. Gusty winds of 30-50km/h are forecast.

The weather certainly felt like spring for a few moments this week. Temperatures rose well-above freezing for the first time this month reaching 7C (45F) on Monday, along with some light rain. That was followed by 3 more days of above freezing temperatures, however winter has returned. We managed 6cm of wet snow on Thursday, bringing the monthly total to an incredible 102.6cm (40 inches). That amount is more than double the normal snowfall for February and represents nearly half of our average seasonal total.

THE NEXT STORM

A strong cold front has crossed the Montreal region early Friday morning, with our high of 1C (34F) reached around 3AM, temperatures have dropped rapidly since to the current reading of -10C (14F). Strong winds, up to 50km/h, are producing windchill values close to -20C. Winds will ease by midday, with temperatures settling in around -5C (23F) along with bright sunshine.

A strong Alberta Clipper low pressure will rapidly move southeast across the Great Lakes Friday, with clouds quickly filling back in this afternoon from west to east. The low will move very close to Montreal Saturday morning. Snow will spread east, arriving during the evening hours in Montreal, becoming heavy overnight. Storm accumulations of at least 10cm are forecast for Montreal, with 10 to 20cm possible north and west of the city. Those regions are under a snowfall warning. On Saturday, the high temperature will be reached early in the morning as a strong cold front associated with the storm arrives by midday. Temperatures will drop rapidly behind the front, along with increasing winds, the risk of snow squalls and blowing snow.

Skies will finally clear out late Saturday, allowing for a frigid night and cold Sunday. Lows will approach -20C (-4F) across southern Quebec by Sunday morning. The mercury will struggle to reach -12C (10F) on Sunday, along with bright, sunny skies.

The active weather pattern will continue next week, as another storm moves north from the Ohio Valley into the Ottawa Valley. This storm is expected to pass west of Montreal, allowing very warm air into the region. We are forecasting rain by Thursday. With area rivers frozen solid and tons of snow on the ground, the region will need to be closely monitored for the risk of flooding. 

Thankfully no injuries were reported this week after a 6-storey parking garage collapsed in downtown Ottawa due to the weight of heavy snow on the structures roof. Ottawa, like Montreal, had a very snowy and cold February, with 105.5cm reported. (Ottawa Fire Services)

Unsettled but mild end to February for Montreal

Milder temperatures will help melt away some of the 97cm of snow that has fallen on the Montreal region during the month of February. While we can expect a mild weather week ahead, it comes with persistent cloud cover and a mix of light rain and snow at times. Colder air and perhaps some snow arrive by next Saturday. (Valley Weather Photo)

Winter has certainly made up for lost time after getting off to a rather slow start in Montreal during the months of November and December. February has been a throwback month, with last Sunday's storm reminding me of the storms of my youth back in the 1970s.

So on that note, winter-weary Montrealers will get a break this week, but don't pack up the shovels just yet. Mild air is streaming across the country from west to east, finally bringing the Prairie's out of the deep freeze and warming Montreal above the freezing mark for the first time in three weeks. 

Clearing away some of the 75cm of snow that fell on Montreal between February 13-17. (Valley Weather Photo)

Stubborn cloud cover will linger most of the week, as several low-impact weather systems cross the province. We can expect periods of rain and snow mixed, with the liquid form dominating the daylight hours. No system is expected to produce much in the way of amounts, with just a couple of centimetres of snow and perhaps a few millimetres of rain expected.

The big news will be the temperatures. We can expect daytime highs in the plus 3C to 5C (38F to 41F) through Thursday, with overnight lows either side of the freezing point (0C). There is a chance for some fog on a few of the mornings. There may also be some icy spots, as any melting during the day will freeze up at night.

It is probably a good time to clear the snow away from downspouts and basement windows, as well as any outdoor vents or electrical outlets. The mild weather will last until late this week. Colder air, with perhaps a more significant low pressure area arrives by Saturday. We may be looking at measurable snow to start March. 

With the couple of centimetres of fresh snow that fell Sunday morning in Montreal, we have nudged the monthly total up to 97cm. Montreal measured at least a trace of precipitation on 19 of 23 days this month. As far as temperatures go, the mercury has been below freezing for 21 of 23 days, barely rising above 0C (32F) on February 6th and 7th. February 2nd had the coldest temperature of the winter to date at Trudeau Airport, with a morning low of -21.8C (-7F).

The calm after the storm in Montreal - winter 2024-25 by the numbers

The sun finally broke out across southern Quebec Wednesday morning, after frigid overnight lows around -20C. Winds were still gusty early this morning, producing cold wind chills, along with some drifting snow as seen above on Senneville Road, on the western tip of the island. (Valley Weather Photo)

We finally have some sunshine on Wednesday and the winds have finally eased off after three straight days of gusts over 50km/h. Temperatures have been frigid since the storm, with wind chill values in the minus 20s. Sunday's blizzard is long gone, but the big cleanup remains, and it has been a tough one. Roads have been clogged with deep snowbanks and sidewalks in many boroughs remain unplowed.

Once the snow ended on Monday, it was followed by strong winds that persisted into late Tuesday. Those winds generated widespread blowing snow, often covering roads soon after they were plowed.

Weary crews are finally starting to catch up and have started hauling away the tons and tons of snow that fell on the city. It is a long and difficult task as many cars remain buried in deep snow, slowing the process. The message is clear from the Ville de Montréal, if the orange signs are out, move your car or it will be towed and quickly.

On that note, exercise extreme caution while cleaning out your vehicle. A 57 year old man was found dead in his car on Tuesday in Parc-Extension, from carbon monoxide poisoning. The car was surrounded by deep snowbanks blocking the exhaust while he warmed his car. Make certain your exhaust is completely free of snow before you start the vehicle. Also verify that any drains or heat exhausts on your home are fee from ice and snow, as well as basement windows. 

Sunday's storm produced over 50 consecutive hours of blowing snow at Trudeau Airport, with six of those hours having true blizzard conditions, with visibilities under 400 metres. (Valley Weather Photo)

Winter 2024-2025 by the Numbers

So how does back-to-back storms in four days shape up historically? From early Thursday morning until Monday night, 74.6cm of snow fell on Montreal. That has only happened once before, in 1898 between January 19-22, when 72.4cm of snow fell. The nearly 75cm of snow almost matched the amount that fell for the entire season up to last Thursday, which was 76.5cm (November-December-January). It brings the monthly total to 95.4cm for February, and the seasonal total since October 1st to 171.9cm. The total for the entire winter of 2023-2024 was 173.2cm. With a couple of months worth of winter weather to go, we will easily surpass that amount.

While this winter has been much colder and snowier than last, it is not that unusual. What is making it seem far worse, is the consistent cold weather, with below freezing temperatures for long periods of time. In January, all but three days remained below freezing. So far in February, only 2 days have nudged above the freezing point, with highs of 0.6C and 0.4C.

So in the last 50 days, only 5 have had above freezing temperatures. As a result all the snow that has fallen is still on the ground. This trend is expected to continue to the end of this month. While no major storms are on the horizon, there will be some nuisance snow Thursday and again Sunday. The next bigger storm looks possible by the end of the month. For now, the good news is that temperatures will slowly warm, with highs close to 0C over the weekend.

Blowing snow - frigid weather behind latest storm

After back-to-back storms in Montreal, many vehicles remain buried Monday morning in deep snowbanks, some as high as 4 metres. Over 70cm of snow has fallen on the city since Thursday. Widespread blowing snow will make for extremely difficult travel on Monday, as winds gust to over 70km/h. (Valley Weather Photo) 

Blowing Snow Advisory for the St. Lawrence Valley

Our powerful winter storm is over northern Maine Monday morning as a 970mb low pressure (the lower the pressure - the stronger the storm). The lowest pressure at my home on Ile Perrot was 989mb. This deep low pressure system dumped 35 to 45cm of snow across southern Quebec, with a four day total from both storms in excess of 70cm (28 inches). During Sunday afternoon, the snow fell at times at a rate of 2 to 5cm per hour. Our total for the month of February to date has ballooned to 93.2cm at Trudeau Airport, more than November through January combined.

On Sunday, the heavy snow and strong winds produce true blizzard conditions for 6 hours at Trudeau Airport, with visibility under 400 metres. The visibility was under 1km for 9 hours at the airport. As a result numerous flights were delayed or cancelled, and delays remain Monday morning.

In 85 years of record keeping, Montreal has never had this much snow over a four day period. The roads are less than ideal Monday morning. While plowed, the snow is hard-packed and the intersections are icy. There have been numerous accidents and road closures over the last 24 hours. The commute was slow but steady, as many have a snow day in Monday, with most schools closed. Winds will gust to over 70km/h, as arctic high pressure to our west tries to move into the region. The winds will ease late in the day.

A frigid, windswept morning in Montreal after the strong storm on Sunday. (Valley Weather Photo)

The blowing snow is making for challenging driving conditions, especially off-island.

Frigid air is moving in behind the storm, with temperatures around -10C (14F) Monday, and lows down to -15C (5F). Windchill values will be in the minus 20s.

Conditions will slowly improve Tuesday, with thankfully no new storms on the horizon at this time.

Blizzard Warning - Strong winter storm producing near-blizzard conditions in Montreal

Deneigement Mongrain is fighting the good fight in Notre-Dame-de-L'Ile-Perrot Sunday afternoon, trying to stay ahead of the heavy snow falling across the region. The winter storm warning remains in effect for the balance of the day across southern Quebec. Tavel is not advised.

Strong 982mb low pressure in western New York early Sunday afternoon will move south of Montreal today and into northern Maine on Monday. An area of heavy snow and strong winds is producing near-blizzard conditions in southern Quebec at Sunday afternoon, with visibility down to 0.2km at Trudeau Airport, with winds gusting to 63km/h. The pressure at the airport is falling rapidly, down to 997mb at 1pm.

The open roads are difficult this afternoon, with rapidly accumulating snow and strong winds producing whiteout conditions. The steady precipitation will persist into the evening hours in Montreal. Here on Ile Perrot, measuring the snow has proved difficult, as winds gust to 60km/h. With temperatures steady at -10C (14F). the light powdery snow is easily blown around. Depending on which ruler you prefer, I have between 8 and 15cm on the ground. The official total at Trudeau is 13cm as of  1pm. Much more will fall over the next few hours, with the snow depth increasing rapidly.

The storm in question is near Elmira, New York at noon, moving northeast across New England today while continuing to strengthen. Storm accumulations will be in the 25-40cm by Monday morning. The snow will become light tonight, but the wind will remain a problem on Monday, gusting from the west up to 70km/h.

With all the fresh powder on the ground, travel will continue to be difficult especially on open highways such as Highway 15 and 30 on the South Shore and Highway 20 to the Ontario border and northeast to Quebec City. Consider postponing any travel plans.

Conditions will improve Tuesday, however the weather will remain cold but dry.

Winter storm warning remains in effect

Crews across the city and beyond are rushing to clear away the 34cm of snow that fell on Montreal on Thursday. While the city of Montreal is pouring all resources into snow removal, they will need to switch back to plowing and slating once the next storm begins. Many roads will not be cleaned in time, with another 30-45cm forecast Sunday. Travel will be very difficult Sunday into the Monday morning commute in Montreal. (Valley Weather Photo)

WINTER STORM WARNING UPDATE: Sunday, February 16

Radar is showing heavy snow to the south and west of the Montreal region moving northeast into southern Quebec. Expect the snow and winds to increase through midday, with near-blizzard conditions at times expected in the St. Lawrence Valley. So far around 5cm has fallen in Montreal, with storm totals approaching 40cm by Monday morning. Travel is not advised. 

Previous Post: Widespread winter storm warnings have been issued for most of southern Quebec, eastern and southern Ontario and adjacent New York and New England. Travel will be very difficult on Sunday in all regions.

Strengthening low pressure will deepen rapidly on Sunday while moving from the Ohio Valley towards upstate New York. The track will place southern Quebec in the ideal location for a significant snowstorm. The storms central pressure is forecast to drop close to 970mb across New York, producing heavy precipitation and strong winds along and north of the track. To the south, warmer air will rise over the cold air at the surface and produce areas of sleet and freezing rain in extreme southwest Ontario and central New York and New England.

For Montreal, snow will begin Saturday evening and be light at first, with 5 to 10cm expected overnight from the Ottawa Valley towards southern Quebec. On Sunday, the snow will increase in intensity during the morning, becoming heavy at times, along with strong northeast winds gusting to 60km/h. Expect significant blowing and drifting snow, along with very cold temperatures, remaining near -10C (14F) for the duration of the storm in Montreal. More snow is expected Sunday night, before precipitation tapers off to flurries on Monday. Winds will remain strong on Monday, up to 50km/h, with blowing snow continuing to be a problem on area roads. Many roads in Montreal are already clogged with the 34cm that fell on Thursday.

Total storm accumulations from this storm alone will range from 30 to 45cm across the region. Lesser amounts, 15 to 25cm can be expected along the international border, where some sleet may mix in.

Travel is not advised on Sunday. This story will be updated.

New stronger storm takes aim at Quebec and Ontario

Strong winds late Thursday afternoon produced significant blowing and drifting snow after 25 to 40cm fell across the Montreal region. Another major snowstorm is on the way for Sunday into Monday for southern Quebec. (Valley Weather Photo) 

After the biggest storm in nearly two years swept across southern Quebec, closing over 1200 schools and slowing travel, we are looking at an even stronger storm system from late Saturday into Monday morning.

Thursday's storm dumped 34cm at Trudeau Airport, bringing the monthly total to 54.8cm, already more than January, and above the long-term average for the entire month of February, 49cm. The storm also produced strong winds on the backside of the system late in the afternoon through midnight, with gusts up to 70 km/h. Those winds caused significant blowing snow, reducing visibility and drifting the 30 plus centimetres of snow across several roads. Highway 40 was closed at the Ontario border, as was Highway 13 in both directions Thursday evening after blowing snow made the airport tunnel dangerous. Conditions improved late in the evening. As much as 45cm fell north of Montreal at Saint-Sauveur, with 35cm falling in Ottawa.

Arctic high pressure will build into Montreal for Friday and early Saturday, with sunny skies, winds will remain brisk, with a high of -6C (21F). Friday night will be frigid and moonlit, with deep snow cover and ideal radiational cooling, the low dips close to -20C (-4F) for many locations. Saturday will feature increasing clouds ahead of our next storm.

Low pressure is forecast to develop over the Ohio Valley on Saturday and move very close to Montreal on Sunday. This storm is expected to deepen rapidly, becoming significantly stronger than Thursday's storm. Some models have the storm deepening to a sub 980mb low near Montreal. This will introduce another round of heavy snow on Sunday across southern Ontario and Quebec, along with strong winds and blowing snow. It is too early for specific amounts, but 30cm plus is not out of the question.

I will update this story frequently over the next 24-36 hours.

Plan on very difficult travel Sunday into the morning commute Monday morning. With the volume of snow already down on the city, Monday may prove difficult negotiating any street that does not have Thursday's storm cleared away yet.

Schools closed as winter storm sweeps across the region

Another difficult commute in Montreal, but with much less traffic as all schools are closed. So far 13-15cm has fallen with another 10-15cm forecast Thursday. (Valley Weather Photo)

A Winter Storm Warning remains in effect for Montreal and most of southern Quebec. 

Radar is showing at least a few more hours of steady precipitation to our southwest that will move through the Montreal region through midday.

Roads across the region are snow covered and slippery, with reduced visibility. All schools in the Montréal region, including those off-island, as well as CEGEPS and Universities, are closed today.

Widespread weather warnings remain in place across the region as a mix of heavy snow and sleet fall in the Montreal area. As of 7AM, 13cm of snow had fallen at Trudeau Airport, with another 15cm expected today. Lesser amounts have fallen here on Ile Perrot, as slightly milder air aloft has allowed for a mix of sleet at times. This will lessen the final accumulations. 

Winds have been gusting out of the northeast up to 50km/h. They will veer to the southwest and increase 50-80km/h late today as strengthening low pressure moves from near Toronto towards Montreal and then east into Maine. Finally winds will back to the northwest 40-60km/h tonight as colder air filters in.

High temperatures Thursday will be near the freezing point, with overnight lows dropping to -12C (10F). Friday will be the calm before the next storm, as an even stronger system moves in for the weekend. More on that later.

Two winter storms to deliver significant snow to Montreal

The long commute home westbound on Highway 40 in Sainte-Anne-de-Bellevue during last Thursday's snowstorm. Expect very difficult driving conditions on Thursday across the entire region, with heavy snow, blowing snow and even some freezing rain along and south of the St. Lawrence River. (Valley Weather Photo)

Winter Storm Warning in effect for southern Quebec and eastern Ontario. Winter weather advisory for adjacent upstate New York.

Expect very difficult travel conditions tonight and Thursday across the entire region, with low visibility in heavy snow and blowing snow.

Two winter storms are set to deliver significant precipitation to southern Quebec and eastern Ontario. The first storm arrives Wednesday evening, persisting into Thursday. There is still some uncertainty with the final snow totals, especially along and south of the St. Lawrence River, where warmer air arrives on Thursday. For now, snow is forecast to start late this evening and become heavy overnight. Accumulations of 15cm are expected in the Montreal area by the morning commute on Thursday. The snow will continue all day, mixing with freezing rain or sleet at times along the river and points south to the international border.

Total storm accumulations will be in the 20-35cm range from south to north across our region, including the Ottawa Valley, Laurentians and Quebec City. Less snow is forecast along the New York and Vermont border and across the Eastern Townships. 

Low pressure will move from the Ohio Valley down the St. Lawrence Valley and eastward into northern Maine on Friday. Temperatures will be cold on Wednesday, but rise through the night to high near 0C (32F) on Thursday in Montreal. Winds will become gusty up to 50km/h out of the northeast tonight and early Thursday, before backing to the northwest up to 60km/h Thursday afternoon. These winds will produce areas of blowing and drifting snow.

Skies clear out Friday before another strong winter storm takes aim at southern Quebec for late Saturday and Sunday. This storm will be colder for Montreal, with all snow expected at this time. More details to follow once we clear up our current storm.

Significant winter storm to impact Montreal

The message is clear from Transport Quebec, don't crowd the plow. There will be plenty of plowing and salting to be done over the next week as back-to-back storms will impact southern Quebec. A winter storm watch in now in effect for Montreal, with 20 to 35cm of snow possible from late Wednesday into Thursday. (Transport Québec)

Winter Storm watch in effect for Montreal, Southern Quebec and the Ottawa Valley.

The watch will likely be upgraded to a warning for several regions once a a more definitive storm track is determined.

A cold front will sweep across southern Quebec on Tuesday, accompanied by some gusty winds and perhaps a few snow squalls and flurries. The front will move south of the region, with Arctic high pressure building into Quebec for a few hours Wednesday.  Wednesday will start off cold, with lows down to -20C (-4F).

On Wednesday, clouds will thicken and lower as strengthening low pressure moves from Texas into the Ohio Valley and eventually down the St. Lawrence Valley. Snow will move into eastern Ontario on Wednesday afternoon,  and the Montreal region during the evening hours. The snow will become very heavy at times, especially during the Thursday morning commute in Montreal. Sleet or freezing rain may mix in south of the St. Lawrence River, but most of the precipitation will fall as snow. At this time, accumulations are expected in the 20-30cm range, with 40cm possible north of Montreal.

Expect very difficult driving conditions region wide on Thursday, if you can work from home. The snow will be accompanied by northeast winds of 20-40km/h creating areas of blowing snow. The high on Thursday will be -3C (27F) in Montreal.

Enjoy Friday as skies clear out and we have partly cloudy but cold wether. Another strong area of low pressure will take aim at our region over the weekend, with more snow forecast. More on that once we get this system out of the way.

Stormy weather pattern expected to continue for Montreal through February

With some amount of snow falling in Montreal on 28 of 31 days in January, and 7 of 9 days so far in February, the region has experienced several challenging driving days. Add in gusty winds and areas of blowing snow, and the result has been long commute times, closed roads and several serious accidents. Sadly more snow is in the forecast. (Valley Weather)

A fast-moving winter storm delivered a swath of heavy snow Saturday afternoon and evening across southwestern Ontario into New York and New England, remaining just south of Montreal. Southern Quebec experienced a period of light snow, with just a couple of centimetres for most locations.

This continued the pattern of wintry weather that has resulted in nearly 20cm of snow since the start of the month in Montreal. We have had numerous difficult driving days in the region, with poor road conditions and several serious accidents. Highway 15 on the South Shore in Brossard and La Prairie was closed Friday due to blowing snow and poor visibility. On Thursday, at least three separate accidents involving more than 50 cars, closed sections of Highway 10 near Rougemont.

Unfortunately the snowy trend is expected to persist. As early a Sunday evening, a cold front will sweep southeast across the St. Lawrence Valley, accompanied by some heavier snow showers. Colder air arrives Monday as brief high pressure builds over the region. Highs will be near -8C with lows down to -10C.

The fair weather will be short-lived, with another front producing snow showers and potential squalls on Tuesday. Wednesday will be a calm day before our next potential significant storm arrives on Thursday. Low pressure is expected to lift northeast from Louisiana into upstate New York. The system is expected to pass close to Montreal, and depending on the final track, we could be looking at 15-20cm of snow during the day Thursday.

Another break in the weather is expected Friday into Saturday before yet another significant storm develops and moves along the New England coast. This could produce another major snowfall for the region.

Keep in mind that with most storm systems that impact the St. Lawrence Valley and Montreal, the final track determines all. A difference in as a little as 100 kilometres, such as with Saturday nights storm, can mean just a dusting versus a major snowstorm. The devil is in the details and we will need to wait until the event draws closer to determine a more precise track and final snow amounts for the city.

One thing seems certain, throughout the forecast period, we expect temperatures to remain below freezing, so any precipitation would most likely be in the form of snow or perhaps a mix along the US border.

Two more winter storms on the horizon for Montreal

Monday's quick hitting storm dumped up to 10cm of snow on Montreal in just a few hours. The snow iced roads and lowered visibility significantly during the evening commute, making for a long drive home for many. Similar conditions can be expected Thursday, with a quick 5-10cm of snow forecast for Montreal. A winter weather travel advisory has been posted for the region. (Valley Weather Photo)

A winter weather travel advisory has been issued once again for a wide swath of southern Quebec and Ontario, as well as adjacent areas of New York and New England. If you have any travel plans over the next 12 to 18 hours, especially along the busy 401 corridor, you may want to postpone them.

A fast moving area of low pressure will skirt form the Midwest across the Great Lakes and north of Montreal on Thursday. After a frigid morning in Montreal, as cold as -20C (-4F), temperatures are on the rise as clouds quickly stream in from the southwest. Snow should start late morning and could become heavy at times, in a situation very similar to Monday's storm. Accumulations will generally be in the 5-10cm range, with a risk of freezing drizzle, especially along the St. Lawrence River.

Temperatures will warm to -2C (28F) today, dropping to -5C (23F) tonight and remaining there on Friday. The snow today will taper to flurries tonight as winds increase out of the southwest up to 50km/h. A strong cold front overnight will back winds to the northwest at 40-60km/h along with some snow squalls. Another 2-4cm of fresh snow is possible along with blowing snow. Conditions will slowly improve on Friday, but winds will remain gusty.

This same storm has been producing significant freezing rain across the plains states and into the Ohio Valley and lower Great Lakes. Freezing rain is snarling traffic across southwestern Ontario on Thursday morning. There has even been thunder and lightning with the precipitation.

Saturday will be fair and cold as high pressure briefly builds into the region. The fair weather will be short-lived, as clouds quickly stream northward ahead of another winter storm expected to move across New England on Sunday. Depending on the final track of this system, we may be looking at another significant snowfall. At this time, 5cm is expected but that may change if the storm tracks closer to our region. Stay tuned!

Winter weather travel advisory in effect for Montreal

Shubenacadie Sam getting ready to deliver his forecast for six more weeks of winter weather, on this Groundhog Day 2025. (Nova Scotia Communications Photo)

A Winter Weather Travel Advisory is in effect for southern Quebec for 5 to 15cm of snow Monday afternoon and evening. Travel will be impacted as a result of snow covered roads and reduced visibility for the evening commute Monday across eastern Ontario, southern Quebec into northern New York. Dropping temperatures during the evening hours will likely result in very icy roads.

The various groundhogs were split in their forecast across Canada on Sunday, with Shubenacadie Sam in Nova Scotia, seeing his shadow and predicting 6 more weeks of winter. Meanwhile Wiarton Willie in Ontario did not see his shadow, predicting and early Spring. Here in Quebec, Fred la marmotte saw his shadow, sadly agreeing with Sam.

From what I am seeing this coming week and beyond in the weather models, I would lean towards Sam's prediction. We have a very active weather week ahead once again, with plenty of precipitation, as well as a roller coaster ride for temperatures.

After a frigid Sunday that featured morning lows as cold as -22C in Montreal, temperatures will moderate through the overnight hours and into Monday as a warm front lifts across the region. Highs on Monday will be very close to the freezing point, if not above for some locations. The front will produce some light snow Sunday night, with less than 5cm forecast. Late Monday our winter weather advisory goes into effect as a strong cold front brings moderate snow and gusty winds. Between 5 and 15cm is possible over southern Quebec into the early morning hours Tuesday.

At this time Tuesday and Wednesday look breezy and cold, but dry as arctic high pressure settles into Quebec. On Thursday, a stronger low pressure system will pass through the St. Lawrence Valley, with warming temperatures and mixed precipitation. Another 5 to 10cm of snow is possible. A stronger storm may take aim at the region next weekend, but there is still plenty of uncertainty with the forecast track. Stay tuned!

Either way, winter will persist for the foreseeable future across the Montreal region.