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Severe Thunderstorm Watch 712
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WW0712 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 712
   NWS STORM PREDICTION CENTER NORMAN OK
   1100 PM CDT FRI AUG 11 2006
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL AND EASTERN NORTH DAKOTA
          NORTHERN AND EASTERN SOUTH DAKOTA
   
   EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1100 PM
   UNTIL 500 AM CDT.
   
   HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
   STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH OF
   DEVILS LAKE NORTH DAKOTA TO 75 MILES SOUTH SOUTHWEST OF ABERDEEN
   SOUTH DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
   
   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...THIS SEVERE THUNDERSTORM WATCH REPLACES
   SEVERE THUNDERSTORM WATCH NUMBER 710. WATCH NUMBER 710 WILL NOT
   BE IN EFFECT AFTER 1100 PM CDT. CONTINUE...WW 711...
   
   DISCUSSION...TSTMS IN CNTRL ND MAY EVOLVE INTO A FORWARD-PROPAGATING
   LINE...WITH EMBEDDED SMALL SCALE BOWS POTENTIALLY YIELDING ISOLATED
   DAMAGING WINDS AS SYSTEM MOVES EWD.  A SIMILAR EVOLUTION MAY OCCUR
   WITH STORMS NOW OVER N CNTRL SD AS THE ACTIVITY ENCOUNTERS
   INCREASING MOISTURE/SHEAR ASSOCIATED WITH STRENGTHENING LLJ.  THIS
   SYSTEM MAY MOVE/DEVELOP A BIT S OF E WITH TIME...ALSO POSING A
   THREAT FOR WIND AND POSSIBLY HAIL.
   
   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 29025.
   
   
   ...CORFIDI
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