Sunday, August 28, 2011

Irene Update

10am Update: Above - Irene inland over southeast New York. Rain now just south of Montreal with heavy rain just south of the US border moving towards the city.

From the Canadian Hurricane Centre, the forecast track of Irene through southern Quebec and Atlantic Canada.

9:30 Update: Irene landfall was near NYC at 0900 this morning and she has now been downgraded to a tropical storm with 65mph winds. The pressure is 965mb, moving northeast at 25 mph.

Hurricane Irene is located this morning on the coast near New York City. The large storm system has winds of 75mph and some slow weakening is forecast today as Irene moves inland over southern New England and up the Connecticut River Valley between Vermont and New Hampshire. Irene will then move into southern Quebec and New Brunswick. Montreal is already feeling the effects of the storm. At 9am we are cloudy with a northeast wind of 39 km/h. Winds are forecast to increase to between 70 and 100km/h today. The storm has been drawing in some dry air and has also experienced some shear. Despite this tropical storm force winds extend outwards nearly 300 miles from the center. Where we may see a break in the forecast is in the rain department. Radar is showing very heavy rain across Vermont extending just into Quebec at this hour. It will continue to nudge towards the St. Lawrence Valley. Heavy rain warnings are in effect for all of southern Quebec and now also include southeast Ontario including Cornwall and Glengarry County. Over 50mm is expected this afternoon into tonight with as much as 100mm locally. However the storm is moving faster now and rainfall amounts may be less, we will have to wait and see.

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