[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 051704
SWOMCD
SPC MCD 051703
SCZ000-NCZ000-GAZ000-TNZ000-051830-

MESOSCALE DISCUSSION 0456
NWS STORM PREDICTION CENTER NORMAN OK
1203 PM CDT THU APR 05 2012

AREAS AFFECTED...MUCH OF SC...WRN NC...ERN PORTIONS OF GA

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 051703Z - 051830Z

THUNDERSTORMS WILL INCREASE IN COVERAGE DURING THE NEXT FEW HRS
ACROSS MUCH OF SC INTO WRN NC AND PORTIONS OF ERN GA. THIS ACTIVITY
WILL POSE A THREAT FOR LARGE HAIL AND DAMAGING WINDS. AREA IS BEING
MONITORED FOR A WW.

MID-DAY MESOANALYSIS SHOWS A BACKDOOR COLD FRONT PROGRESSING SWD
INTO NRN PORTIONS OF SC. MOSTLY CLEAR SKIES AHEAD OF THE FRONT ARE
FAVORING STRONG SURFACE HEATING AND BOUNDARY LAYER DESTABILIZATION.
THIS HEATING COMBINED WITH DEWPOINTS FROM THE MID 50S OVER WRN NC TO
LOW/MID 60S IN SC ARE AIDING IN THE DEVELOPMENT OF MLCAPE VALUES
FROM 1000-2000 J/KG. GIVEN THESE TRENDS IN
DESTABILIZATION...THUNDERSTORM DEVELOPMENT ALONG THE COLD FRONT AND
WITHIN THE WARM SECTOR APPEARS LIKELY ACROSS MUCH OF THE AREA DURING
THE NEXT FEW HRS. GIVEN THE PRESENCE OF MODERATE DEEP-LAYER WLY
SHEAR /I.E. EFFECTIVE BULK WIND DIFFERENCE FROM 30-40
KT/...MULTICELL CLUSTERS POSING A THREAT FOR LARGE HAIL AND DAMAGING
WIND GUSTS WILL BE POSSIBLE. THUS...A WW MAY BE NEEDED THIS
AFTERNOON FOR PORTIONS OF THE AREA.

..GARNER.. 04/05/2012

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

ATTN...WFO...RAH...ILM...CHS...CAE...GSP...MRX...FFC...

LAT...LON   32058102 33388324 34998412 35778325 35738170 34827990
            33567884 32058102



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