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Mesoscale Discussion 1196 |
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MESOSCALE DISCUSSION 1196
NWS STORM PREDICTION CENTER NORMAN OK
0438 PM CDT SUN JUN 12 2011
AREAS AFFECTED...CNTRL NC...N-CNTRL/NWRN SC
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 122138Z - 122245Z
A THREAT FOR STRONG TO POTENTIALLY SVR WIND GUSTS WILL EXIST ACROSS
THE PIEDMONT OF CNTRL NC AND SC OVER THE NEXT FEW HRS. CONVECTIVE
TRENDS WILL CONTINUE TO BE MONITORED...BUT THERE IS CONSIDERABLE
UNCERTAINTY WHETHER A NEW WW WILL BE NEEDED ATTM.
RECENT RADAR REFLECTIVITY IMAGES SHOW TSTMS HAVE DEVELOPED INTO A
BROKEN LINE STRETCHING FROM N-CNTRL NC SEWD INTO THE MTNS OF WRN SC.
HOT BOUNDARY LAYER CONDITIONS DOWNSTREAM FROM THESE TSTMS HAS
YIELDED A MODERATELY UNSTABLE ENVIRONMENT /MLCAPE VALUES OF
1000-1500 J/KG/ AND WILL SUPPORT FURTHER PROPAGATION TOWARDS THE SE.
SFC T-TD SPREADS OF 20-25 DEG F ALONG WITH STEEP LOW-LEVEL LAPSE
RATES MAY SUPPORT THE POTENTIAL FOR LOCALIZED STRONG-SVR DOWNBURST
WINDS...BUT WEAK DEEP-LAYER FLOW SHOULD PRECLUDE A MORE
SIGNIFICANT/WIDESPREAD THREAT.
..ROGERS.. 06/12/2011
ATTN...WFO...AKQ...MHX...RAH...ILM...RNK...CAE...GSP...
LAT...LON 36257683 35547741 34697897 34338039 34168145 34448215
34828236 35458185 36257987 36457936 36507831 36427749
36257683
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