Tuesday, May 5, 2009

MESO: Mesoscale Discussion 0715

ACUS11 KWNS 052311
SWOMCD
SPC MCD 052310
NCZ000-VAZ000-SCZ000-060015-

MESOSCALE DISCUSSION 0715
NWS STORM PREDICTION CENTER NORMAN OK
0610 PM CDT TUE MAY 05 2009

AREAS AFFECTED...PORTIONS OF SC/NC

CONCERNING...TORNADO WATCH 246...

VALID 052310Z - 060015Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 246 CONTINUES.

TORNADO THREAT CONTINUES ACROSS MUCH OF SC/NC...WITH ADDITIONAL
THREATS OF HAIL/DMGG WINDS.

SMALL SUPERCELLS CONTINUE TO DEVELOP S OF A QUASI-STATIONARY
FRONT...NOW ORIENTED ROUGHLY NEAR VIRGINIA BEACH AND EXTENDING WSWWD
THROUGH GREENVILLE-SPARTANBURG. DESPITE DIURNAL COOLING...THE AREA
REMAINS MODERATELY UNSTABLE...WHILE 40 TO 50 KT 0-6 KM BULK SHEAR
AND FAVORABLE CURVATURE IN LOW LEVEL WIND PROFILES CONTINUE TO
SUPPORT SUPERCELL DEVELOPMENT. SEVERAL CELLS HAVE QUICKLY BECOME
TORNADIC NEAR THE FRONT...ALTHOUGH OUTFLOW UNDERCUTTING THE STORMS
HAS SOMEWHAT LIMITED THE LENGTH OF TIME TORNADOES CAN
PERSIST...WHILE THOSE THAT CROSS INTO THE COOLER AIRMASS N OF THE
FRONT QUICKLY DIMINISH IN INTENSITY. HOWEVER...A TORNADO THREAT WILL
LIKELY CONTINUE OVER THE NEXT FEW HOURS...ESPECIALLY AS STORMS
ENCOUNTER GREATER BUOYANCY NEAR THE FRONT.

..HURLBUT.. 05/05/2009

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...AKQ...MHX...RAH...ILM...CAE...GSP...

LAT...LON 34767993 34238178 34788255 35348186 35808006 36737772
37107604 36057578 35067779 35007876 34767993

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