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Mesoscale Discussion 637 |
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MESOSCALE DISCUSSION 0637
NWS STORM PREDICTION CENTER NORMAN OK
0541 PM CDT WED APR 27 2011
AREAS AFFECTED...PARTS OF ERN AL...NRN/CENTRAL GA...AND WRN NC/SC
CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY
VALID 272241Z - 272315Z
A NEW TORNADO WATCH IS BEING COORDINATED TO THE EAST OF WW/S 235 AND
238. THIS NEW WATCH WILL LIKELY BE A PDS WATCH.
STRENGTHENING SLY LOW LEVEL WINDS /50-60 KT/ THIS EVENING ACROSS ERN
AL INTO CENTRAL/NRN GA TO WRN PARTS OF SC/NC WILL MAINTAIN A MOIST
AIR MASS /SURFACE DEWPOINTS RISING INTO THE MID 60S/ AND SUPPORTING
MLCAPE 1000-2000 J/KG. THIS COMBINED WITH INCREASING SWLY MIDLEVEL
WINDS ATOP THE LOW LEVEL WINDS WILL SUPPORT STRONG EFFECTIVE BULK
SHEAR /50-70 KT/ FOR DISCRETE SUPERCELLS AS ACTIVITY NOW LOCATED
OVER AL AND ERN TN DEVELOPS DOWNSTREAM.
..PETERS.. 04/27/2011
ATTN...WFO...RNK...CAE...GSP...MRX...FFC...TAE...BMX...MOB...
LAT...LON 32358642 35008451 36218196 35998051 33778216 32098310
31598390 31608645 32358642
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