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Severe Thunderstorm Watch 70
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WW0070 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
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.
   SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 70
   NWS STORM PREDICTION CENTER NORMAN OK
   1250 PM CDT TUE APR 13 2010
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SMALL PART OF NORTHEAST COLORADO
          MUCH OF WESTERN AND PARTS OF CENTRAL NORTH DAKOTA
          MUCH OF WESTERN NEBRASKA
          MUCH OF WESTERN AND PARTS OF CENTRAL SOUTH DAKOTA
   
   EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 1250 PM UNTIL
   700 PM 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 65
   STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES SOUTH
   SOUTHWEST OF IMPERIAL NEBRASKA TO 15 MILES NORTH OF MINOT NORTH
   DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
   
   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.
   
   DISCUSSION...STRONG COLD FRONT PUSHING EWD INTO HIGH PLAINS WILL BE
   FOCUS FOR A DEVELOPING LINE OF STRONG/SEVERE THUNDERSTORMS THRU THE
   AFTERNOON.  EVEN WITH ONLY MODEST INSTABILITY...STRENGTH OF WIND
   FIELDS AND STEEP LOW/MID LEVEL LAPSE RATES SUPPORT DAMAGING WIND
   THREAT AS THE LINE MOVES EWD ACROSS WATCH AREA.
   
   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 400. MEAN STORM
   MOTION VECTOR 22035.
   
   
   ...HALES
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