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Severe Thunderstorm Watch 613
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WW0613 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
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.
   SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 613
   NWS STORM PREDICTION CENTER NORMAN OK
   255 PM CDT WED JUL 22 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHEAST COLORADO
          NORTHWEST KANSAS
          SOUTHWEST AND SOUTH-CENTRAL NEBRASKA
   
   EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 255 PM UNTIL
   1000 PM CDT.
   
   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 70
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTHWEST
   OF AKRON COLORADO TO 45 MILES SOUTH SOUTHEAST OF KEARNEY
   NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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...TSTMS ARE DEVELOPING ALONG W-E ORIENTED BOUNDARY IN
   CONJUNCTION WITH PASSAGE OF SHORT WAVE TROUGH THROUGH WRN/CNTRL NEB
   INTO KS.  PRESENCE OF STEEP LOW TO MIDLEVEL LAPSE RATES...MLCAPE OF
   1000-2000 J/KG AND 35-45 KT OF DEEP NWLY SHEAR WILL LIKELY PROMOTE
   ORGANIZED STORM CLUSTERS /INCLUDING SUPERCELLS/ WITH THE THREAT FOR
   LARGE HAIL AND DAMAGING WIND GUSTS.
   
   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 500. MEAN STORM
   MOTION VECTOR 35030.
   
   
   ...MEAD/HALES
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