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MESOSCALE DISCUSSION 1085
NWS STORM PREDICTION CENTER NORMAN OK
0720 PM CDT FRI JUN 12 2009
AREAS AFFECTED...EASTERN CAROLINAS INTO EASTERN GA
CONCERNING...SEVERE THUNDERSTORM WATCH 391...
VALID 130020Z - 130115Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 391
CONTINUES.
SEVERE TSTM WATCH 391 CONTINUES UNTIL 03Z.
PRIMARY SEVERE HAIL/DAMAGING WIND GUST THREAT CONTINUES MAINLY
ACROSS THE COASTAL PLAIN OF THE CAROLINAS THIS EVENING...BUT THE
OVERALL THREAT SHOULD CONTINUE TO WANE OVER TIME. SOME ADDITIONAL
STRONG DEVELOPMENT MAY CONTINUE TO OCCUR WITH ONGOING STORMS
OTHERWISE SPREADING EASTWARD ACROSS THE COASTAL PLAIN OVER THE NEXT
1-2 HOURS COINCIDENT WITH AN EASTWARD PROGRESSING SURFACE
TROUGH/WEAK FRONT. THIS ACTIVITY REMAINS WITHIN A RESIDUALLY MOIST
/70S F SURFACE DEWPOINTS/ AND MODERATELY UNSTABLE BOUNDARY
LAYER...REFERENCE 00Z CHARLESTON SC OBSERVED RAOB. EVEN SO...A
GRADUALLY COOLING BOUNDARY LAYER AND WEAK LARGE SCALE
FORCING/BUILDING HEIGHTS ALOFT...ALONG WITH MODEST VERTICAL SHEAR
/GENERALLY AROUND 25 KT/ AND WARM TEMPERATURES ALOFT TENDING TO
LIMIT UPDRAFT ROTATION/HAIL POTENTIAL...ALL SUGGEST A GRADUALLY
DIMINISHING SEVERE THREAT THIS EVENING.
..GUYER.. 06/13/2009
ATTN...WFO...AKQ...MHX...RAH...ILM...CHS...CAE...
LAT...LON 36617673 36007559 34787630 31618138 33338182 34817902
36617673
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