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MESOSCALE DISCUSSION 0415
NWS STORM PREDICTION CENTER NORMAN OK
0618 AM CDT SAT MAR 15 2008
AREAS AFFECTED...PARTS OF E CNTRL GA THRU WRN/SRN SC
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 151118Z - 151315Z
A MARGINAL OR RATHER ISOLATED/LOCALIZED SEVERE THREAT MAY EXIST
THROUGH MID MORNING. THE NEED FOR AN ADDITIONAL WW EAST OF WW 117
IS NOT CURRENTLY ANTICIPATED...BUT TRENDS WILL BE MONITORED.
SUBSTANTIAL WEAKENING OF ONGOING CONVECTIVE CLUSTER ACROSS NORTHERN
GEORGIA HAS OCCURRED DURING THE PAST COUPLE OF HOURS. THIS GENERAL
TREND PROBABLY WILL CONTINUE...AS LATEST RUC GUIDANCE SUGGESTS THAT
MINOR SUPPORTING SHORT WAVE IMPULSE WILL ALSO WEAKEN AS LIFTS EAST
NORTHEASTWARD INTO THE CAROLINAS BETWEEN NOW AND 14-16Z.
HOWEVER...GIVEN THE PROXIMITY OF FORCING TO WEAK SURFACE WARM
FRONT/LOW-LEVEL CONFLUENCE BAND EXTENDING ALONG THE INTERSTATE 20
CORRIDOR INTO THE AUGUSTA AREA...THEN SOUTHEASTWARD TOWARD
CHARLESTON SC...RENEWED CONVECTIVE DEVELOPMENT ALONG THE FRONT
CANNOT BE RULED OUT. IF THIS OCCURS...DEEP LAYER SHEAR BENEATH 50
KT WESTERLY 500 MB FLOW WILL BE SUPPORTIVE OF UPDRAFT ROTATION IN
THE PRESENCE OF WEAK CONDITIONAL INSTABILITY. AN ISOLATED SUPERCELL
IS POSSIBLE. SMALL LOW-LEVEL HODOGRAPHS WOULD SEEM TO MINIMIZE
TORNADO POTENTIAL...BUT THERMODYNAMIC PROFILES APPEAR SUPPORTIVE OF
LARGE HAIL AND LOCALIZED DAMAGING WIND GUSTS.
..KERR.. 03/15/2008
ATTN...WFO...CHS...CAE...GSP...FFC...
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