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Mesoscale Discussion #0186 issued at 2040 UTC 1 March 2009
MESOSCALE DISCUSSION 0186
NWS STORM PREDICTION CENTER NORMAN OK
0240 PM CST SUN MAR 01 2009
   
AREAS AFFECTED...CNTRL/NERN GA AND CNTRL/WRN SC
   
CONCERNING...HEAVY SNOW 
   
VALID 012040Z - 020045Z
   
SNOW WILL CONTINUE TO DEVELOP NEWD INTO NERN GA AND CNTRL/WRN SC.
ALTHOUGH IN GENERAL RATES WILL BE LIGHT...LOCALIZED MODERATE TO
HEAVY SNOW WILL BE LIKELY IN BANDING FEATURES AND
THUNDERSNOW...WHERE 1 TO 2 INCHES AN HOUR CAN BE EXPECTED.
ELSEWHERE...LIGHT SNOW WILL BE POSSIBLE AS FAR S AS SRN AL/GA. 
   
RECENT WV IMAGERY REFLECTS THAT THE POTENT UPPER LOW...NOW
NEGATIVELY TILTED AND OVER CNTRL GA...IS BEGINNING TO MAKE ITS TURN
TO THE NE. STRONGEST DEFORMATION ZONE TO THE N AND W OF THE LOW IS
CURRENTLY FROM NRN/CNTRL GA INTO SERN/CNTRL AL...WHERE WV IMAGERY
REFLECTS ENHANCEMENT. AS THE UPPER LOW SLOWLY PIVOTS AND TURNS
NEWD...AREAS ACROSS CNTRL GA WILL CONTINUE TO RECEIVE MORE
SIGNIFICANT SNOWFALL BEFORE TAPERING OFF FROM SW TO NE. LIQUID WATER
EQUIVALENT FROM OBSERVATIONAL SITES IN ATLANTA AND ATHENS GA ARE
INDICATIVE THAT AN INCH TO TWO INCH AN HOUR RATES ARE OCCURRING IN
THE HEAVIER BANDS OF SNOW. ADDITIONALLY...LIGHTNING IS STILL BEING
OBSERVED NEAR THE ATLANTA AND ATHENS METRO AREAS. A WEAK LAYER OF
ELEVATED INSTABILITY WILL CONTINUE TO SUPPORT THUNDERSNOW AND
LOCALIZED HEAVIER RATES. AS THE LOW SHIFTS NEWD UP THE COASTAL
PLAINS...A CORRIDOR FROM NERN GA INTO WRN SC WILL BE FAVORED FOR
HIGHER ACCUMULATIONS. ELSEWHERE...SNOW HAS BEEN REPORTED RECENTLY AS
FAR SOUTH AS SERN AL. ALTHOUGH RATES WILL BE LIGHT...GIVEN STRONG
COLD ADVECTION AND LINGERING MOISTURE...FLURRIES ACROSS SRN AL/GA
WILL BE POSSIBLE THROUGH THE EVENING.
   
..HURLBUT.. 03/01/2009
 
  
ATTN...WFO...CAE...GSP...FFC...




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