SWOMCD
SPC MCD 272053
NCZ000-SCZ000-272200-
MESOSCALE DISCUSSION 0750
NWS STORM PREDICTION CENTER NORMAN OK
0353 PM CDT SUN APR 27 2008
AREAS AFFECTED...CNTRL SC TO COASTAL NC
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 272053Z - 272200Z
NUMEROUS THUNDERSTORMS HAVE DEVELOPED/INTENSIFIED SOUTH OF FRONTAL
ZONE FROM COASTAL NC...SWWD INTO CNTRL SC. THIS ACTIVITY HAS
EVOLVED WITHIN MODESTLY UNSTABLE AIRMASS CHARACTERIZED BY STEEP LOW
LEVEL LAPSE RATES...SFC-3KM VALUES ON THE ORDER OF 8 C/KM...BUT
RELATIVELY WEAK DEEP LAYER SHEAR. IN THE ABSENCE OF STRONG
FORCING...IT APPEARS STORM MERGERS AND CLUSTERING WILL CONTINUE FOR
THE NEXT FEW HOURS BEFORE AIRMASS IS OVERTURNED AND INSTABILITY
WEAKENS. ALTHOUGH A FEW DISCRETE STORMS MAY EXHIBIT BRIEF WEAK
ROTATION...GREATEST THREAT SHOULD BE LOCALLY DAMAGING WINDS AND
ISOLATED LARGE HAIL. CONVECTION SHOULD WEAKEN RAPIDLY ONCE BOUNDARY
LAYER COOLS AND STABILIZES.
..DARROW.. 04/27/2008
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...MHX...RAH...ILM...CAE...GSP...
35548069 35617745 35067623 34127915 33678066
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