Tuesday, March 10, 2009

Some flooding and windy

A strengthening Colorado Low is forecast to cross Lake Huron on Wednesday. Ahead of this storm warm moist air will spread into southern and eastern Ontario and southwest Quebec. Rain will begin overnight and persist most of Wednesday with temperatures approaching 10C. Look for 25-35mm along Lake Erie with lesser amounts in the order of 15mm further north and east. The rain, combined with melting snow and ice, will cause a rise in area rivers. Flood Watches have been posted for all of New York and Vermont. The rain will also be accompanied by some thunderstorms.

Winds are forecast to increase in all portions of Ontario and southern Quebec and gust from 30-50km/h tonight and overnight and increase out of the southwest 50-80km/h along the cold front later Wednesday. Winds this strong can cause damage and warnings may be required.

Further west heavy snow with blizzard conditions are forecast across the Dakotas and into Minnesota, Manitoba and northwest Ontario as a result of his same storm.

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