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Feb 16-17th Winter Storm


Chicago Storm
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2 minutes ago, StormChaser4Life said:

Pouring pixie dust in Peoria. Was hoping for some dendritic snow. This could definitely impact totals. Regardless still snowing moderately to heavy at times. Visibility definitely under a half mile in downtown. I will take what I can get. 

i'll trade locations with you

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I was seriously concerned when many of the 00z models showed a miss just to my south. Models corrected back NW overnight. 

Also...

MD 145 graphic

Mesoscale Discussion 0145
   NWS Storm Prediction Center Norman OK
   0112 PM CST Thu Feb 17 2022

   Areas affected...portions of far northern Indiana into far southern
   Lower Michigan

   Concerning...Winter mixed precipitation 

   Valid 171912Z - 180015Z

   SUMMARY...Wintry mixed precipitation is underway in proximity to the
   Indiana/Michigan border. A gradual transition to moderate/heavy snow
   is expected this afternoon. An instance or two of 1 inch/hour
   snowfall rates is possible in the stronger precipitation bands.

   DISCUSSION...As the ill-defined 850 mb cyclone across central IL/IN
   continues to propagate northeast through the afternoon, 850-700 mb
   WAA will continue to transport rich moisture and sustain the
   moderate to heavy wintry precipitation that is underway across
   northern parts of the Ohio Valley. KLOT and KIWX dual-polarimatric
   radar indicate liquid precipitation and sleet falling along the
   IL/IN border. However, this sleet to snow transition zone is
   shifting southeast in tandem with 925 mb CAA which is ushering in
   sub-freezing temperatures per 18Z mesoanalysis and supported by 18Z
   RAP forecast soundings. With a near-saturated, sub-freezing
   troposphere, the transition from wintry mixed precipitation to snow
   is expected to continue through the afternoon. Up to 1 inch/hr
   snowfall rates may occur in heavier portions of the precipitation
   bands given near-saturation in the -12 to -17C dendritic growth
   zone.

   ..Squitieri/Grams.. 02/17/2022
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