Another round of snow and rain expected for Montreal

After last weeks 40cm storm, huge piles of snow tower into the sky in several neighbourhoods. This one is located in Saint-Laurent along Thimens Boulevard. (ValleyWeather)

Special Weather Statement in effect for southern Quebec and eastern Ontario for 5 to 20cm of snow mixed with freezing rain from late Wednesday into Thursday morning.

The calm and cold weather that southern Quebec has enjoyed since Saturday, will come to an end late Wednesday. Low pressure developing across the southwest US, is forecast to move across the Great Lakes and into central Quebec by Thursday. A second storm will move across the southeast US and along the east coast, eventually out to sea well south of Quebec. This track will place Montreal and southern Quebec in the warm sector, with mixed precipitation expected. Temperatures will start the day Wednesday around -10C (14F), rising throughout the day and into Thursday, to plus 4C (39F). This is not going to be a big storm, but will be problematic nonetheless due to the timing of the precipitation.

We are running out of place to put the snow this winter. Contractors attempt to widen the parking lot at an Ile Perrot business this past weekend. (ValleyWeather)

Another clear and cold night is forecast tonight, before clouds increase Wednesday, with snow developing very late in the day. Steady snow will develop from late Wednesday into early Thursday morning, with precipitation mixing with freezing rain and eventually rain from Montreal and eastern Ontario south to the US border. At this time, I am thinking 5 to 10cm of snow is likely for Montreal, with 10 to 15cm north of the city into the Laurentians. Isolated 20cm amounts are possible, where temperatures remain below freezing the longest. All precipitation will change back to flurries late Thursday before ending. Expect clearing skies and cooler temperatures for Friday, before we have a repeat performance this weekend. Another storm system will take a very similar track over the weekend with more snow and mixed precipitation expected.