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Severe Thunderstorm Watch 469
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WW0469 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Moderate 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.
   SEL9

   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 469
   NWS STORM PREDICTION CENTER NORMAN OK
   500 PM CDT WED AUG 20 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     SOUTH CENTRAL NORTH DAKOTA
     NORTH CENTRAL SOUTH DAKOTA

   * EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 500 PM
     UNTIL 1100 PM CDT.

   * PRIMARY THREATS INCLUDE...
     ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
     ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
   STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES WEST
   NORTHWEST OF BISMARCK NORTH DAKOTA TO 70 MILES SOUTH SOUTHEAST OF
   MOBRIDGE SOUTH DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).

   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 468...

   DISCUSSION...CLUSTERS OF STORMS WILL CONTINUE TO FORM NEAR THE
   SURFACE LOW AND WARM FRONT NEAR THE ND/SD BORDER.  THE DOWNSTREAM
   ENVIRONMENT IS AT LEAST MARGINALLY FAVORABLE FOR SUPERCELLS...WITH
   THE POTENTIAL TO PRODUCE A FEW DAMAGING GUSTS AND LARGE HAIL FOR THE
   NEXT SEVERAL HOURS.

   AVIATION...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 500. MEAN STORM
   MOTION VECTOR 29015.


   ...THOMPSON
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Page last modified: August 21, 2014
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