[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 132037
SWOMCD
SPC MCD 132036
VAZ000-NCZ000-SCZ000-TNZ000-132100-

MESOSCALE DISCUSSION 0777
NWS STORM PREDICTION CENTER NORMAN OK
0336 PM CDT FRI MAY 13 2011

AREAS AFFECTED...CNTRL/WRN NC...NRN SC...SRN VA

CONCERNING...SEVERE POTENTIAL...WATCH NEEDED SOON

VALID 132036Z - 132100Z

THE ENVIRONMENT ACROSS PORTIONS OF NC/SC AND INTO SRN VA HAS BECOME
MODERATELY UNSTABLE AS STRONG HEATING HAS RESULTED IN TEMPERATURES
HEATING INTO THE UPPER 70S ACROSS NC TO THE LOWER 90S OVER SC. MOIST
AXIS ALSO EXTENDS NWD THROUGH THIS AREA /WITH DEW POINTS IN THE
60S/...YIELDING SB CAPE VALUES OF 1500-2500 J/KG. SATELLITE TRENDS
INDICATE CU HAS GENERALLY STRUGGLED THUS FAR /WITH EXCEPTION TO WRN
AND FAR NRN NC AND SRN VA/ AS AN UPPER RIDGE REMAINS POSITIONED
OVERHEAD...BUT A GENERAL INCREASE IN THUNDERSTORM COVERAGE IS
ANTICIPATED OVER THE NEXT FEW HRS...POTENTIALLY FOCUSED ALONG A
STATIONARY BOUNDARY DRAPED ACROSS NC. ADDITIONALLY...A COLD POOL
PROPAGATING FROM THE W MAY PROMOTE NEW THUNDERSTORM DEVELOPMENT OVER
WRN PORTIONS OF NC/SC. GIVEN A MODERATELY UNSTABLE ENVIRONMENT
COMBINED WITH EFFECTIVE SHEAR VALUES OF 20-30 KTS...A THREAT FOR
LARGE HAIL AND DMGG WINDS MAY MATERIALIZE...REQUIRING ISSUANCE OF A
WW.

..ROGERS.. 05/13/2011

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

ATTN...WFO...RAH...RNK...CAE...GSP...MRX...

LAT...LON   36767883 34648033 34748281 36908140 36837950 36767883


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