NOT FOR PENNSYLVANIA NOT FOR PENNSYLVANIA URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 286 NWS STORM PREDICTION CENTER NORMAN OK 100 PM EDT FRI JUN 7 2013 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF SOUTHERN MARYLAND EASTERN NORTH CAROLINA EASTERN VIRGINIA COASTAL WATERS * EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 100 PM UNTIL 800 PM EDT. * PRIMARY THREATS INCLUDE... SEVERAL TORNADOES LIKELY SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 115 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES EAST NORTHEAST OF NORFOLK VIRGINIA TO 55 MILES NORTHWEST OF NEW BERN NORTH CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6). PRECAUTIONARY/PREPAREDNESS ACTIONS... 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...THIS TORNADO WATCH REPLACES TORNADO WATCH NUMBER 285. WATCH NUMBER 285 WILL NOT BE IN EFFECT AFTER 100 PM EDT. DISCUSSION...SHOWERS/TSTMS WITH A POTENTIAL FOR LOW-LVL ROTATION EXPECTED TO PERSIST N AND E OF TS ANDREA AS THAT SYSTEM CONTINUES NEWD THROUGH THIS EVE. THE STRONGEST LOW-LVL SPEED AND DIRECTIONAL SHEAR...AND GREATEST RISK FOR TORNADOES...SHOULD FOCUS ALONG SW-NE FRONTAL ZONE ATTM EXTENDING FROM N OF RAH THROUGH SE VA TO NEAR SBY. SOME RISK FOR DMGG WIND AND PERHAPS A TORNADO OR TWO ALSO WILL EXIST WITH CONVECTION/POSSIBLE STORMS FORMING ALONG S-N ORIENTED CONFLUENCE BANDS E OF CIRCULATION CENTER...WHERE DIRECTIONAL SHEAR IS WEAKER BUT SFC HEATING WILL BE MAXIMIZED. 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 450. MEAN STORM MOTION VECTOR 20035.
Posted on: Fri, 07 Jun 2013 17:06:12 +0000