Monday, April 7, 2014

Env. Can. weather statement

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10:00 AM EDT Monday 07 April 2014
Special weather statement in effect for:
  • Ottawa North - Kanata - Orléans
  • Ottawa South - Richmond - Metcalfe
A moisture-laden Texas low is setting its sights on Southern Ontario.
The disturbance expected to affect Southern Ontario is currently over Western Kentucky and will intensify and track toward the Lower Great Lakes today. The most likely trajectory is across Ohio to Lake Ontario by Tuesday morning. Rain is expected to develop over parts of Southern Ontario this afternoon, reaching Georgian Bay this evening.

A significant general rainfall of 15 to 25 mm is likely over much of Southern and Eastern Ontario with the higher amounts likely closer to lakes Erie and Ontario. Rainfall warnings have been issued northeast of Lake Ontario where 25 to 35 mm of rain are forecast.

The rain will likely change to a heavy wet snow this evening mainly over the higher terrain of the Dundalk and Haliburton Highlands. A significant accumulation of 5 to 10 centimetres appears likely in these areas before it tapers off early Tuesday. Locally higher amounts are possible, especially over the Bancroft through Algonquin Park area, as well as the higher ground southwest of Collingwood including flesherton, Singhampton and Shelburne. Snowfall warnings may be required.

On a more spring-like note, the warmest weather of the season is likely on Thursday to the south of Georgian Bay, quickly erasing any memory of the snow on Monday night. Temperatures are expected to climb into the mid to upper teens, but will likely be more muted east of Georgian Bay.

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