UPDATED 3:30
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHWEST CONNECTICUT
DISTRICT OF COLUMBIA
DELAWARE
CENTRAL AND EASTERN MARYLAND
NEW JERSEY
SOUTHEASTERN NEW YORK
SOUTHERN AND EASTERN PENNSYLVANIA
NORTHERN AND EASTERN VIRGINIA
THE EASTERN WEST VIRGINIA PANHANDLE
COASTAL WATERS
EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 135 PM UNTIL
1000 PM EDT.
HAIL TO 1.5 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 85
STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH OF
NEWARK NEW JERSEY TO 65 MILES SOUTHWEST OF PATUXENT RIVER
MARYLAND. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).
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.
DISCUSSION...SFC HEATING AND CONTINUED ESE ADVANCE OF ERN OH/WRN PA
UPR IMPULSE EXPECTED TO FOSTER A GRADUAL INCREASE IN TSTM COVERAGE
AND STRENGTH THROUGH EARLY TNGT OVER WW REGION. STORMS MAY BE MOST
CONCENTRATED ALONG AND E OF THE BLUE RIDGE...ALONG DIFFUSE LEE
TROUGH FROM SE PA/CNTRL MD SSW INTO VA...AND NEAR SHALLOW BACK-DOOR
BOUNDARY IN NJ/SE NY. PREDOMINANT SVR THREAT SHOULD BE LOCALLY DMGG
WIND DUE TO RELATIVELY HIGH PW AND MODERATELY UNIDIRECTIONAL WSWLY
MID LVL FLOW...ESPECIALLY IN AREAS WHERE SFC HEATING WILL CONTINUE
TO OCCUR THROUGH MID AFTN. MARGINALLY SVR HAIL AND...IN NRN PART OF
WW...VERY HEAVY RAIN ALSO MAY OCCUR. THE STORMS MAY MERGE INTO
SEVERAL LOOSELY ORGANIZED CLUSTERS/BANDS BY MID...WITH A DIMINISHING
SVR THREAT.
