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December 21st-24th, 2022 | Plains/MW/GL/OV Winter Storm


Ohiobuckeye45

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Just now, StLweatherjunkie said:

It's tough to get snow accumulation on the lakes until they're frozen 🤪

"Details, details, I hate to be bothered by details".  Lots of large tarps available on Amazon.

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Hope with the sampling and the closer we get to the event we see some increased moisture. Not looking for a lot but the trend in reduced amounts is somewhat concerning. Guessing that is also much more realistic than 18” of snow. 

Edited by ak9971
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Fantastic write up by DTX this morning. Didn't want to tie up this thread with the longevity of it, but here is the link for it. Just a quick text I would share...

Given the trajectories of the upper level forcing, would not be shocked to see an eastward shift of the surface low track in future model runs. An eastward shift in the track could provide just enough cooler air and better midlevel deformation that would yield a quicker changeover to snow and higher snow amounts.

https://forecast.weather.gov/product.php?site=DTX&issuedby=DTX&product=AFD&format=ci&version=1&glossary=1

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Also from DTX:

 

Given the uncertainty of thermal field, the uncertainty of the precipitation type Thursday night/Friday morning, the uncertainty in the wobble of the potential vorticity structure, and the fact there won`t be PACNW sampling of the left exit region dynamics until this evening, will hold off on the issuance of a Winter Storm Watch this forecast cycle. Will stress that there is little question that we will need headlines because of the strength of the winds this storm will generate and the potential life threatening impacts.

There is no question the primary concern for Southeast Michigan centers on the potential wind gusts of greater than 50 mph during the peak of the storm and impacts the high winds will create...i.e white-out, near zero visibility and potentially widespread power outages leading into the arctic air mass.

Edited by ryanmkay
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3 minutes ago, ak9971 said:

Hope with the sampling and the closer we get to the event we see some increased moisture. Not looking for a lot but the trend in reduced amounts is somewhat concerning. Guessing that is also much more realistic than 18” of snow. 

 

Unfortunately it often goes the other way. But who knows.

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4 minutes ago, ryanmkay said:

Fantastic write up by DTX this morning. Didn't want to tie up this thread with the longevity of it, but here is the link for it. Just a quick text I would share...

Given the trajectories of the upper level forcing, would not be shocked to see an eastward shift of the surface low track in future model runs. An eastward shift in the track could provide just enough cooler air and better midlevel deformation that would yield a quicker changeover to snow and higher snow amounts.

https://forecast.weather.gov/product.php?site=DTX&issuedby=DTX&product=AFD&format=ci&version=1&glossary=1

Always nice to hear the words “higher snow amounts” when it comes from DTX.

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1 minute ago, Ohiobuckeye45 said:

Yeah, even with this shift east, except for the GEFS cold sector qpf here has gone down quite notably

Definitely will have to see what the high rez models bring for moisture.  Hoping some lake moisture gets involved.

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