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Severe Thunderstorm Watch 404
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WW0404 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Low Very 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 404
   NWS STORM PREDICTION CENTER NORMAN OK
   505 PM EDT TUE JUL 8 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     DISTRICT OF COLUMBIA
     CENTRAL AND NORTHERN DELAWARE
     CENTRAL AND NORTHERN MARYLAND
     NEW JERSEY
     EASTERN PENNSYLVANIA
     NORTHERN VIRGINIA
     COASTAL WATERS

   * EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 505 PM UNTIL
     1100 PM EDT.

   * PRIMARY THREATS INCLUDE...
     SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS
       TO 75 MPH POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
   STATUTE MILES EITHER SIDE OF A LINE FROM 40 MILES SOUTHWEST OF
   WASHINGTON DISTRICT OF COLUM TO 35 MILES EAST NORTHEAST OF
   ALLENTOWN PENNSYLVANIA.  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 403...

   DISCUSSION...DAMAGING-WIND THREAT FCST TO INCREASE AND SHIFT FROM
   W-E ACROSS WW AREA AS QLCS OVER WV...WITH HISTORY OF MEASURED GUSTS
   ABOVE SVR LIMITS...IMPINGES UPON FAVORABLY MOIST/UNSTABLE AIR MASS
   OVER REGION.  REF SPC MESOSCALE DISCUSSION 1318 FOR MORE NEAR-TERM
   DETAILS.

   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 28045.


   ...EDWARDS
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Page last modified: July 09, 2014
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