813
ACUS11 KWNS 271921
SWOMCD
SPC MCD 271921
VAZ000-MDZ000-WVZ000-OHZ000-272115-
MESOSCALE DISCUSSION 0876
NWS STORM PREDICTION CENTER NORMAN OK
0221 PM CDT WED MAY 27 2026
AREAS AFFECTED...PORTIONS OF THE UPPER OHIO VALLEY...WEST
VIRGINIA...AND THE MID ATLANTIC
CONCERNING...SEVERE THUNDERSTORM WATCH 247...
VALID 271921Z - 272115Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 247
CONTINUES.
SUMMARY...THE SEVERE RISK CONTINUES ACROSS WW247. SEVERAL STRONGER
CLUSTERS OF STORMS HAVE ALSO BEEN IDENTIFIED.
DISCUSSION...AFTERNOON RADAR IMAGERY OVER WW247 SHOWED SCATTERED TO
NUMEROUS THUNDERSTORMS ONGOING OVER THE WATCH AREA. THE ENVIRONMENT
REMAINS UNSTABLE AND MODESTLY SHEARED, WHICH SHOULD CONTINUE TO
SUPPORT THE THREAT FOR DAMAGING GUSTS AND SOME HAIL WITH THE
STRONGEST STORMS OVER MUCH OF THE WATCH AREA.
A CORRIDOR OF LOCALLY GREATER SEVERE POTENTIAL IS NOW APPARENT ALONG
A CONVECTIVELY MODIFIED BOUNDARY STRETCHING FROM CENTRAL VA
NORTHWESTWARD INTO WV. SEVERAL CLUSTERS OF STRONGER STORMS,
INCLUDING A SUPERCELL CROSSING THE CHESAPEAKE BAY, HAVE BECOME
ESTABLISHED ALONG THE BOUNDARY. THE MOST UNSTABLE AIR MASS (MLCAPE
1500-2000 J/KG) AND SLIGHTLY STRONGER FLOW ALOFT RESIDES ALONG AND
SOUTH OF THE BOUNDARY, WHERE LOCALLY ENHANCED CONVERGENCE IS ALSO
SUPPORTING AN INCREASE IN CONVECTIVE COVERAGE. THIS WILL LIKELY
SUPPORT A FEW MORE ROBUST STORMS WITH A CONCENTRATED RISK FOR
DAMAGING GUSTS FROM SOUTHERN WV INTO SOUTH CENTRAL VA OVER THE NEXT
FEW HOURS.
..LYONS.. 05/27/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...AKQ...LWX...RNK...PBZ...RLX...
LAT...LON 37938226 39128199 39318169 39568075 39468042 39267982
38527824 38237697 38297619 37187538 36647571 36867713
37498079 37588143 37708192 37848218 37938226
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
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