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023 

WWUS20 KWNS 281358

SEL2

SPC WW 281358

DCZ000-MDZ000-VAZ000-WVZ000-CWZ000-282100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 32

NWS STORM PREDICTION CENTER NORMAN OK

900 AM EST MON FEB 28 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       DISTRICT OF COLUMBIA

       MARYLAND

       WESTERN AND CENTRAL VIRGINIA

       SOUTHEAST WEST VIRGINIA

       COASTAL WATERS



EFFECTIVE THIS MONDAY MORNING AND AFTERNOON FROM 900 AM UNTIL 400

PM EST.



TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH OF MARTINSBURG

WEST VIRGINIA TO 45 MILES SOUTH SOUTHEAST OF DUBLIN VIRGINIA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU2).



REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR

TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS.



OTHER WATCH INFORMATION...CONTINUE...WW 29...WW 30...WW 31...



DISCUSSION...QLCS CURRENTLY MOVING THROUGH THE CNTRL APPALACHIANS IS

EXPECTED TO MOVE E OF THE BLUE RIDGE BY LATE MORNING.  AIR MASS E OF

THE HIGHER TERRAIN IS CHARACTERIZED BY STEEP MIDLEVEL LAPSE RATES

AND A WARMING/MOISTENING BOUNDARY LAYER.  GIVEN THE STRONG VERTICAL

SHEAR IN PLACE...SETUP WILL REMAIN FAVORABLE FOR EMBEDDED BOWING

AND/OR SUPERCELL FEATURES WITH THE THREAT FOR DAMAGING WINDS AND

PERHAPS A TORNADO OR TWO.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

400. MEAN STORM MOTION VECTOR 26040.





...MEAD

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