URGENT – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 303
NWS STORM PREDICTION CENTER NORMAN OK
310 PM EDT SAT JUN 12 2010
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHERN MARYLAND
EASTERN VIRGINIA
COASTAL WATERS
EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 310 PM UNTIL
800 PM EDT.
HAIL TO 1 INCH IN DIAMETER…THUNDERSTORM WIND GUSTS TO 70
MPH…AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES NORTHEAST OF
CHARLOTTESVILLE VIRGINIA TO 40 MILES EAST OF SOUTH HILL VIRGINIA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).
REMEMBER…A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION…CONTINUE…WW 301…WW 302…
DISCUSSION…LINE OF STRONG TO LOCALLY SEVERE STORMS CONTINUES TO
MOVE EAST OFF THE HIGHER PIEDMONT AND INTO HOT AND UNSTABLE AIRMASS
ACROSS ERN VA AND SOUTH MD THIS AFTERNOON. COLD POOL AND ADDITIONAL
LIFT FROM OH/WV SHORT WAVE TROUGH SHOULD SUSTAIN THE THREAT FOR
DAMAGING WIND GUSTS WITH THE STRONGER CELLS WITHIN THE CONVECTIVE
LINE OVER THE NEXT FEW HOURS.
AVIATION…A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION
VECTOR 26035.
