Post by Nws Olney Maryland on Jun 1, 2011 13:48:47 GMT -5
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 412
NWS STORM PREDICTION CENTER OLNEY MD
225 PM EDT WED JUN 1 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
DISTRICT OF COLUMBIA
DELAWARE
MARYLAND
SOUTHERN NEW JERSEY
NORTHERN VIRGINIA
EASTERN PANHANDLE OF WEST VIRGINIA
COASTAL WATERS
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 225 PM UNTIL
1000 PM EDT.
HAIL TO 2 INCHES 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 NORTH AND SOUTH OF A LINE FROM 45 MILES NORTHWEST
OF STAUNTON VIRGINIA TO 45 MILES SOUTH SOUTHEAST OF ATLANTIC CITY
NEW JERSEY. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
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 410...WW 411...
DISCUSSION...SCATTERED THUNDERSTORMS ARE EXPECTED TO FORM OVER THE
HIGHER TERRAIN OF EASTERN WV/WESTERN VA AND CENTRAL PA...AND SPREAD
ACROSS THE WW AREA THIS AFTERNOON AND EVENING. HIGH CAPE
VALUES...COMBINED WITH SUFFICIENT WESTERLY FLOW ALOFT...WILL POSE A
THREAT OF SEVERE STORMS CAPABLE OF LARGE HAIL AND DAMAGING WINDS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 29030.
WISAAL
SEVERE THUNDERSTORM WATCH NUMBER 412
NWS STORM PREDICTION CENTER OLNEY MD
225 PM EDT WED JUN 1 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
DISTRICT OF COLUMBIA
DELAWARE
MARYLAND
SOUTHERN NEW JERSEY
NORTHERN VIRGINIA
EASTERN PANHANDLE OF WEST VIRGINIA
COASTAL WATERS
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 225 PM UNTIL
1000 PM EDT.
HAIL TO 2 INCHES 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 NORTH AND SOUTH OF A LINE FROM 45 MILES NORTHWEST
OF STAUNTON VIRGINIA TO 45 MILES SOUTH SOUTHEAST OF ATLANTIC CITY
NEW JERSEY. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
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 410...WW 411...
DISCUSSION...SCATTERED THUNDERSTORMS ARE EXPECTED TO FORM OVER THE
HIGHER TERRAIN OF EASTERN WV/WESTERN VA AND CENTRAL PA...AND SPREAD
ACROSS THE WW AREA THIS AFTERNOON AND EVENING. HIGH CAPE
VALUES...COMBINED WITH SUFFICIENT WESTERLY FLOW ALOFT...WILL POSE A
THREAT OF SEVERE STORMS CAPABLE OF LARGE HAIL AND DAMAGING WINDS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 29030.
WISAAL