CONCERNING...HEAVY SNOW
VALID 240245Z - 240745Z
A BAND OF SNOWFALL...ASSOCIATED WITH A NEGATIVELY TILTED SHORTWAVE
TROUGH AND ATTENDANT SFC LOW...WILL RESULT IN BRIEF PERIODS OF MOD
TO HVY SNOW ACROSS THE UPPER MIDWEST.
A NEGATIVELY TILTED SHORTWAVE WILL CONTINUE TO PROGRESS EWD ACROSS
THE MIDWEST DURING THE NEXT FEW HOURS. SFC LOW ASSOCIATED WITH THIS
SHORTWAVE IS CURRENTLY CENTERED OVER S IL AND FAR W KY. 850 MB
FRONTOGENESIS AND ITS ASSOCIATED SNOW BAND... CURRENTLY LOCATED
ACROSS SRN IA EWD TO SRN MI...IS EXPECTED TO DRIFT SWD AND WEAKEN
OVER THE NEXT FEW HOURS AS THE SHORTWAVE TROUGH AND SFC LOW PROGRESS
EWD. A SATURATED DENDRITIC GROWTH ZONE AND EASTERLY FLOW BTW 925-850
MB SHOULD CONTINUE TO PROMOTE BRIEF PERIODS OF MOD TO HVY SNOW
WITHIN THE BAND. HOWEVER..WEAKENING FRONTOGENESIS WITH TIME WILL
RESULT IN A GRADUAL REDUCTION IN SNOWFALL RATES ACROSS IA. FURTHER
E...THE POTENTIAL FOR HIGHER RATES WILL LINGER FOR THE NEXT SEVERAL
HOURS. ADDITIONALLY...QUICK PROGRESSION OF THE SYSTEM SHOULD LIMIT
OVERALL SNOWFALL TOTALS.
..MOSIER/LEITMAN.. 02/24/2012
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LOT...ILX...MKX...DVN...ARX...DMX...EAX...OAX...
LAT...LON 43159094 43298921 43178792 42528754 41978763 41748810
41448918 40889125 40579229 40619522 41249571 41729524
42239403 42729236 43159094
