Wednesday, April 27, 2011

More rain

Fog is quite dense across the metro region this morning and it extends into eastern Ontario. Visibilities are under 1km in many locations. A warm front is in the process of moving north of the city and that will allow us to get into some mild air today. Montreal is at 7C but Burlington is up to 16C. Look for the fog to lift with partly sunny skies and temperatures warming into the low 20's. Showers and thunderstorms will redevelop again later today and overnight as another potent wave of low pressure moves northeast along the front from the upper Midwest. Look for some thunderstorms to produce gusty winds, heavy rain and small hail tonight across the region, especially in upstate New York. Further south in the warm and muggy air, severe thunderstorms and an elevated risk of tornadoes are possible in the US southeast and middle Atlantic. This has been a very bad month for tornado deaths and damage across the eastern third of the US.

On Thursday look for more showers and thunderstorms. The good news at this time is that it looks like a sunny and warm weekend for Montreal and southern Quebec as high pressure move into the region.

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