I apologize for the delay in posting the details on this upcoming storm. Current radar shows this storm currently entering Windsor from the southwest. This storm will mostly be rain for Southern Ontario, however there is a substantial risk of freezing rain in the areas that I colored in pink. Environment Canada has also released the following weather statement in regards to this possibility:
"Special weather statement
Issued by Environment Canada Ontario region. 3:28 PM EST Wednesday
24 November 2010.
Special weather statement issued for..
Bancroft - Bon Echo Park
Brockville - Leeds and Grenville
City of Ottawa
Gatineau
Prescott and Russell
Cornwall - Morrisburg
Smiths Falls - Lanark - Sharbot Lake
Haliburton
Renfrew - Pembroke - Barry's Bay
Algonquin
Burk's Falls - Bayfield Inlet.
..Freezing rain is anticipated Thursday night..
A low pressure system over the central states will intensify and move
towards the upper Great Lakes. Light precipitation associated with
this system will enter Southwestern Ontario tonight and move
eastward. The weather system is expected to intensify over the
Upper Great Lakes Thursday night and bring freezing rain over the
above region.
Present indications are that freezing rain will begin in
Ottawa area late Thursday evening and may persist until Friday
morning.
Listen for further statements. Additional information may also be
found by consulting the latest public forecast. The next public
forecast will be issued by 3.30 PM."
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The rest of Southern Ontario is not completely excempt from freezing rain on Thursday morning, however it would be light and brief, lasting only a couple of minutes for most areas. A trace of snow might follow during the morning and early afternoon hours of Thursday before it switches over to rain in most of Southern Ontario.
Cold air will sweep through Southern Ontario on Friday causing the first lake effect snow to take place of the season. Bands of snow will quickly setup as cold air sweeps over the warm waters of Lake Huron and Georgian Bay. The worst areas to get hit by snow from these bands will be the regions just to the lee of Georgian Bay where up to a foot and a half of snow could fall over a period of 24 hours. Snowsquall warnings will be issued as the exact track of these bands become more clear.
There is speculation on whether we might get our first snowstorm during the beginning of December. I would caution you against this idea as weather models are still fluctuating quite a bit in this area. The storm that is arriving tonight in Southern Ontario was forecasted a week ago to be a heavy winter storm for the Eastern Great Lakes. We can now see that this idea was wrong and more than likely a uneducated guess that only raised false hope for Southern Ontario snow lovers.
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