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Tornado Watch 247
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WW0247 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 247
   NWS STORM PREDICTION CENTER NORMAN OK
   1240 AM EDT THU APR 28 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          DISTRICT OF COLUMBIA
          MARYLAND
          NORTHERN NORTH CAROLINA
          FAR NORTHEAST TENNESSEE
          VIRGINIA
          EASTERN WEST VIRGINIA
          COASTAL WATERS
   
   EFFECTIVE THIS THURSDAY MORNING FROM 1240 AM UNTIL 800 AM EDT.
   
   TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
   MILES EAST AND WEST OF A LINE FROM 30 MILES NORTHEAST OF
   MARTINSBURG WEST VIRGINIA TO 50 MILES WEST OF GREENSBORO NORTH
   CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).
   
   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 238...WW 239...WW
   240...WW 241...WW 242...WW 244...WW 245...WW 246...
   
   DISCUSSION...TSTMS CURRENTLY CRESTING THE BLUE RIDGE ARE EXPECTED TO
   INTENSIFY DURING THE EARLY MORNING HOURS AS THEY ENCOUNTER A MOIST
   AND MODERATELY UNSTABLE AIR MASS IN PLACE ACROSS THE PIEDMONT. 
   GIVEN THE STRONG VERTICAL SHEAR IN PLACE...THE SETUP WILL FAVOR A
   CONTINUATION OF SUPERCELLS AND BOWING STRUCTURES CAPABLE OF
   TORNADOES...DAMAGING WINDS AND HAIL.
   
   AVIATION...TORNADOES AND 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
   400. MEAN STORM MOTION VECTOR 23045.
   
   
   ...MEAD
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