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Severe Thunderstorm Watch 741
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WW0741 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.
   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 741
   NWS STORM PREDICTION CENTER NORMAN OK
   1120 AM MDT MON SEP 14 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          MUCH OF UTAH
   
   EFFECTIVE THIS MONDAY MORNING AND EVENING FROM 1120 AM UNTIL 600
   PM MDT.
   
   HAIL TO 2 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 80
   STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH
   NORTHWEST OF OGDEN UTAH TO 30 MILES EAST SOUTHEAST OF BRYCE
   CANYON UTAH.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   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/SEVERE THUNDERSTORMS DEVELOPING WRN UT AHEAD OF
   UPPER TROUGH.  WITH HEATING/STEEPENING LAPSE RATES AND MLCAPES
   CLIMBING TO NEAR 1000 J/KG...STORMS WILL CONTINUE INCREASING IN
   COVERAGE/INTENSITY THRU THE AFTERNOON AS THEY DEVELOP NEWD. 
   CLUSTERS AND SHORT LINE SEGMENTS WILL INCREASE THREAT OF DAMAGING
   WINDS ALONG WITH THE LARGE HAIL CONCERN WITH ANY STRONG UPDRAFT.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
   MOTION VECTOR 22030.
   
   
   ...HALES
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Page last modified: September 14, 2009
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