WWUS20 KWNS 131130
SEL4
SPC WW 131130
DEZ000-MDZ000-NJZ000-PAZ000-CWZ000-131500-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 304
NWS STORM PREDICTION CENTER NORMAN OK
730 AM EDT THU JUN 13 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
  DELAWARE
  EASTERN MARYLAND
  CENTRAL AND SOUTHERN NEW JERSEY
  SOUTHEASTERN PENNSYLVANIA
  COASTAL WATERS

* EFFECTIVE THIS THURSDAY MORNING FROM 730 AM UNTIL 1100 AM EDT.

* PRIMARY THREATS INCLUDE...
  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
  SEVERAL LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45
STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH OF
TRENTON NEW JERSEY TO 55 MILES SOUTH SOUTHEAST OF DOVER DELAWARE.
 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 303...

DISCUSSION...THE MESOSCALE CONVECTIVE SYSTEM APPROACHING THE REGION
HAS BEEN SLOWLY WEAKENING.  HOWEVER...IT REMAINS STRONG
ENOUGH...COUPLED WITH 40+ KT EASTWARD SOUTHEASTWARD PROPAGATION
ALONG A DIFFUSE SURFACE WARM FRONT...TO SUPPORT A CONTINUING RISK
FOR POTENTIALLY DAMAGING WIND GUSTS INTO NEW JERSEY/DELMARVA
PENINSULA ATLANTIC COASTAL AREAS BY AROUND 15Z.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 28040.


...KERR