SWOMCD
SPC MCD 282044
VAZ000-NCZ000-SCZ000-282145-
MESOSCALE DISCUSSION 2045
NWS STORM PREDICTION CENTER NORMAN OK
0344 PM CDT MON SEP 28 2009
AREAS AFFECTED...S-CNTRL/SERN VA INTO CNTRL NC
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 282044Z - 282145Z
THE POTENTIAL FOR A FEW SEVERE TSTMS CAPABLE OF ISOLATED DAMAGING
WINDS MAY CONTINUE INTO THIS EVENING ACROSS DISCUSSION AREA.
CONVECTIVE TRENDS ARE BEING MONITORED FOR A POSSIBLE WW.
A SHORT BAND OF TSTMS HAS RECENTLY DEVELOPED ALONG COLD FRONT FROM N
OF DAN TO SW OF GSO. AMBIENT AIR MASS OVER THE PIEDMONT IS RATHER
WARM AND MOIST...BUT POOR MIDLEVEL LAPSE RATES ARE EFFECTIVELY
LIMITING MLCAPE TO LESS THAN 500-700 J/KG. WHILE WIND FIELD BELOW 1
KM IS GENERALLY LESS THAN 20-25 KT...NOTABLE STRENGTHENING TO 40-50
KT IS CURRENTLY BEING OBSERVED AROUND 2 KM...PER AREA VWPS. GIVEN
THE RELATIVELY STEEP LOW-LEVEL LAPSE RATES IN PLACE...SOME POTENTIAL
FOR STRONG WIND GUSTS WILL EXIST WITH THE MORE INTENSE STORMS. THIS
THREAT SHOULD BEGIN TO DIMINISH LATER THIS EVENING AS THE BOUNDARY
LAYER STARTS TO COOL/STABILIZE.
..MEAD.. 09/28/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...AKQ...RAH...RNK...GSP...
LAT...LON 35588121 36288020 36867920 37307854 37547753 37147693
36447700 35337866 34987978 34898042 35168107 35588121
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