URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 810 NWS STORM PREDICTION CENTER NORMAN OK 1225 AM EDT SAT AUG 27 2011 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF THE LOWER EASTERN SHORE OF MARYLAND FAR EASTERN NORTH CAROLINA SOUTHEAST VIRGINIA COASTAL WATERS EFFECTIVE THIS SATURDAY MORNING FROM 1225 AM UNTIL 1100 AM EDT. TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH OF WALLOPS VIRGINIA TO 40 MILES SOUTHEAST OF NEW BERN NORTH CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0). 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...CONTINUE...WW 809... DISCUSSION...SHOWERS AND SCTD TSTMS EXPECTED TO PERSIST IN A W-E ARC OF LOW LVL CONFLUENCE MOVING NWD ACROSS NE NC AND THE ADJACENT CSTL WATERS ON NRN SIDE OF IMMEDIATE CIRCULATION OF HRCN IRENE. FARTHER N...A SEPARATE BAND OF MORE INTERMITTENT ACTIVITY MAY PERSIST AND MOVE NWD FROM OFF THE MOUTH OF CHESAPEAKE BAY. INCREASING LOW TO MID LVL WIND FIELD WITH THE CONTINUED NWD MOVEMENT OF IRENE...AND CONTINUED LOW LVL THETA-E ADVECTION AHEAD OF STORM...WILL CREATE AN ENVIRONMENT INCREASINGLY FAVORABLE FOR LOW LVL ROTATION/POSSIBLE TORNADOES NWD INTO TIDEWATER VA AND THE LWR ERN SHORE OF MARYLAND THROUGH MID/LATE MORNING SATURDAY...WHILE EXISTING THREAT PERSISTS OVER E CNTRL AND NE NC.