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Severe Thunderstorm Watch 134
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WW0134 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Low Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 134
   NWS STORM PREDICTION CENTER NORMAN OK
   630 PM EDT FRI APR 19 2013
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   
   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     EASTERN SHORE OF MARYLAND
     EASTERN NORTH CAROLINA
     NORTHEAST SOUTH CAROLINA
     SOUTHEAST VIRGINIA
     COASTAL WATERS
   
   * EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 630 PM
     UNTIL 300 AM EDT.
   
   * PRIMARY THREATS INCLUDE...
     SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
     A FEW LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE
     A FEW TORNADOES POSSIBLE
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
   STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES NORTHWEST OF
   WALLOPS VIRGINIA TO 25 MILES SOUTH SOUTHEAST OF MYRTLE BEACH
   SOUTH CAROLINA.  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 129...WW 130...WW
   131...WW 132...WW 133...
   
   DISCUSSION...CONVECTION IS GRADUALLY ORGANIZING INTO MORE OF A QLCS
   ACROSS THE CENTRAL CAROLINAS/VA...AND THIS CONVECTIVE MODE SHOULD
   PERSIST THROUGH THE EVENING AS CONVECTION PROGRESSES EWD TOWARD THE
   ATLANTIC COAST.  LOW-MIDLEVEL VERTICAL SHEAR WILL BE STRONG ENOUGH
   TO SUPPORT CONTINUED ORGANIZED STORM STRUCTURES.  OTHER THAN SOME
   STABILIZING INFLUENCE OF THE COOLER NEAR-SHORE WATERS /ESP N OF CAPE
   HATTERAS/...SUFFICIENT INSTABILITY IS EXPECTED TO PERSIST INLAND TO
   MAINTAIN THE SEVERE STORM RISK TO THE COAST.  DAMAGING GUSTS WILL BE
   THE MOST COMMON RISK WITH EMBEDDED BOWING SEGMENTS...AND ISOLATED
   LARGE HAIL COULD OCCUR WITH THE STRONGEST STORMS MAINLY IN THE WRN
   PART OF THE WATCH THIS EVENING.  OTHERWISE...A BRIEF SPIN UP OR TWO
   CANNOT BE RULED OUT WITH CIRCULATIONS IN THE BROADER QLCS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
   A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION
   VECTOR 25035.
   
   
   ...THOMPSON
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Page last modified: April 20, 2013
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