ACUS11 KWNS 101722
SWOMCD
SPC MCD 101722
VAZ000-NCZ000-101815-
MESOSCALE DISCUSSION 1686
NWS STORM PREDICTION CENTER NORMAN OK
1222 PM CDT SAT AUG 10 2013
AREAS AFFECTED...CENTRAL/ERN VA INCLUDING SRN
DELMARVA...N-CENTRAL/NERN NC
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 101722Z - 101815Z
PROBABILITY OF WATCH ISSUANCE...60 PERCENT
SUMMARY...WIDELY SCT-SCT SVR TSTMS WILL CONTINUE TO DEVELOP OVER
CENTRAL/SRN VA AND MOVE E/SEWD ACROSS THE TIDEWATER REGION AND
N-CENTRAL/NERN NC THIS AFTN. DAMAGING WINDS WILL BE THE MAIN SVR
THREAT. A WW IS PSBL.
DISCUSSION...SVR TSTMS APPROACHING THE RICHMOND METRO AREA WILL
CONTINUE MOVING/DEVELOPING SEWD INTO A MOD-STRONGLY UNSTABLE AIR
MASS /MLCAPES 2000-2500 J/KG. LARGELY UNIDIRECTIONAL FLOW IN THE
LOWER-MID LEVELS OF 25-35 KTS WILL BE SUFFICIENT FOR MULTICELLS AND
BOWING SEGMENTS CAPABLE OF PRODUCING DAMAGING GUSTS. ADDITIONAL TSTM
DEVELOPMENT IS PSBL IN THE VICINITY OF A FRONTAL ZONE ACROSS THE
DISCUSSION AREA...ESPECIALLY AS FORCING FOR ASCENT ASSOCIATED WITH
AN UPPER LEVEL IMPULSE OVERSPREADS THE AREA THIS AFTN.
CONVECTIVE TRENDS ARE BEING MONITORED FOR THE POSSIBILITY OF A WW.
..BUNTING/WEISS.. 08/10/2013
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...AKQ...LWX...RAH...RNK...
LAT...LON 37737558 37397554 36797567 36507586 36347620 36317665
36307753 36387964 36787987 37387923 37677875 37837821
37907751 37857689 37737558
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