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Tornado Watch 434
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WW0434 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Low Low
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.
   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 434
   NWS STORM PREDICTION CENTER NORMAN OK
   205 PM CDT TUE JUN 16 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          PARTS OF SOUTHERN NORTH DAKOTA
          PARTS OF NORTHERN SOUTH DAKOTA
   
   EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 205 PM UNTIL
   800 PM CDT.
   
   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 10 MILES NORTHEAST OF BISMARCK
   NORTH DAKOTA TO 50 MILES WEST SOUTHWEST OF WATERTOWN SOUTH
   DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
   
   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 432...WW 433...
   
   DISCUSSION...SUPERCELLS ARE DEVELOPING IN CYCLONIC CIRCULATION 
   AROUND UPPER LOW LOCATED W OF BIS.  WITH MLCAPES TO 1000 J/KG AND
   VEERING SHEAR PROFILES...POTENTIAL WILL CONTINUE FOR SUPERCELLS
   INCLUDING LARGE HAIL AND TORNADOES THRU THE AFTERNOON AS ACTIVITY
   SHIFTS SLOWLY N AND NE THRU THE WATCH
   
   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
   450. MEAN STORM MOTION VECTOR 18025.
   
   
   ...HALES
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Page last modified: June 17, 2009
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