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Pre-Christmas Winter Storm Potential


Chicago Storm

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EURO definitely warmer. Gonna have mixing issues well north of where they were on the 0z run.

 

EURO is slightly warmer, yes, but it shows a nice snowstorm for the GTA with 10-15". ;) Could be some ice/freezing rain mixing in at times but overall its another beautiful run for us. 

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I'm starting to get concerned for a major ice storm in Toronto Saturday night into Sunday. Hopefully models cool the upper levels a bit to allow more sleet to fall than freezing rain.

 

When's the last time we had a devastating ice storm? March 2007 and April 2003 were close but we always seem to mix with snow and/or sleet and avoid widespread damage. Maybe climo (or plain luck) will strike again.

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EURO is slightly warmer, yes, but it shows a nice snowstorm for the GTA with 10-15". ;) Could be some ice/freezing rain mixing in at times but overall its another beautiful run for us. 

 

Really? The 0c 850mb line is to our north at 12z Sunday. Those wxbell maps are not accurate on the southern periphery I've heard.

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When's the last time we had a devastating ice storm? March 2007 and April 2003 were close but we always seem to mix with snow and/or sleet and avoid widespread damage. Maybe climo (or plain luck) will strike again.

I wasn't born then, but there was a major ice storm on January 14-15, 1968 that gave downtown Toronto over an inch of freezing rain. It was followed by a foot of snow.

On January 27, 1994, about 15-20 mm of freezing rain feel and that forced the shutdown of Pearson Airport.

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Really? The 0c 850mb line is to our north at 12z Sunday. Those wxbell maps are not accurate on the southern periphery I've heard.

 

It starts off as snow, perhaps a nice 3-5" then transitions to Freezing rain/Sleet/snow together before it transitions back over to snow and another 3-5". Temperatures are marginal. Might be some rain mixed in closer to the lake however, Its cooler the further inland you go. Its a close one. 

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It starts off as snow, perhaps a nice 3-5" then transitions to Freezing rain/Sleet/snow together before it transitions back over to snow and another 3-5". Temperatures are marginal. Might be some rain mixed in closer to the lake however, Its cooler the further inland you go. Its a close one.

This may be one of the rare cases where 850 temps are above freezing, but surface temps are below freezing.

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The models are not picking up on exactly how wide of a ice zone this should have, you have a high extending into Quebec and would be funneling down low level cold air on the North side of this system. The GGEM painting such a wide area of rain north of the low track is a red flag for ice potential, as models always struggle shallow cold air advecting in from the northeast in these situations. Plus it isn't like the 850mb temps on the north side of the low are extremely warm, unless you are expecting snow. Realistically this has a very real ice storm potential on the north side of the low track.

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