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December 8-9th Winter Storm


Chicago Storm

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the typical 'dry ring' showing up nicely on LOT radar.  Right on cue. 

 

Yeah, but the doughnut hole is getting smaller, so that's good. The snow is falling down through some of the radar beams, but not the ones closest to the site yet.

 

Starting to get some bigger flakes here, but I think it's LES.

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Gino update...

 

 

NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL


//DISCUSSION...UPDATED 12Z...

VIRGA (SNOW SUBLIMATING/EVAPORATING BEFORE REACHING THE GROUND)
HAS BEEN IN FULL SWING ACROSS NORTHERN ILLINOIS THE PAST FEW
HOURS. MONITORING RADAR VAD WIND PROFILER DATA SHOWS DECIDED TREND
TOWARD SNOW PENETRATING CLOSER AND CLOSER TO THE SFC...REACHING AS
LOW AS 6000FT MSL AS OF 1123Z. OBSERVATIONAL TRENDS WOULD SUGGEST
THAT MODEL FORECAST SOUNDINGS ARE TOO DRY AND SNOW MAY BEGIN TO
REACH THE GROUND SOONER THAN FORECAST THIS MORNING. WOULD APPEAR
AS THOUGH ONE WAVE OF LIGHT SNOW COULD IMPACT THE TERMINALS
MID/LATE MORNING INTO EARLY AFTERNOON WITH A POSSIBLE LULL BEFORE
ANOTHER STEADIER BATCH OF SNOW ARRIVES LATE AFTERNOON EARLY
EVENING. HARD TO DEFINITIVELY PIN POINT SNOW VS NO SNOW HOURS SO
HAD TO BLANKET MUCH OF PERIOD WITH TEMPO AND PREVAILING -SN...BUT
STILL ANTICIPATE BEST CHANCE OF HIGHEST IMPACT SNOW TO BE 22/23Z
THROUGH ABOUT 03Z. NORTH WINDS EARLY THIS MORNING SHOULD VEER TO
JUST SOUTH OF DUE EAST BY MID TO LATE MORNING AS MESO LOW OVER
LAKE MICHIGAN LIFTS NORTHWEST INTO SE WI AND DISSIPATES. DOES
APPEAR AS THOUGH WE WILL ICE CRYSTALS IN THE CLOUDINESS THIS
EVENING BUT LIFT SHOULD BE MOSTLY GONE BY THEN TOO AND CIGS FAIRLY
HIGH...SO THINK FZDZ POTENTIAL IS LOW WITH PRECIP LIKELY TO END AS
FLURRIES...PARTICULARLY WITH WINDS TURNING WESTERLY AND DRIER AIR
MOVING IN.

IZZI
 

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DBZs have really increased in Racine and Kenosha, heading toward Milwaukee, and with temps in the upper teens this should be some high ratio stuff, at least here.

It's really getting nasty out there. Maybe 0.4" so far in town.

Is it pure LES or enhanced?

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