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Severe Thunderstorm Watch 568
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WW0568 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
High 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.
   SEL8
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 568
   NWS STORM PREDICTION CENTER NORMAN OK
   705 PM CDT THU JUL 9 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          WESTERN IOWA
          SOUTHWEST MINNESOTA
          NORTHEAST NEBRASKA
          SOUTHEAST SOUTH DAKOTA
   
   EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 705 PM
   UNTIL 200 AM CDT.
   
   HAIL TO 3 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 95
   STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES WEST
   NORTHWEST OF WORTHINGTON MINNESOTA TO 15 MILES SOUTH SOUTHWEST OF
   TEKAMAH NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
   
   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...CU/TCU FIELD AND SCATTERED THUNDERSTORMS ARE BEGINNING
   TO INCREASE OVER NORTHEAST NEB/SOUTHEAST SD...AND WILL LIKELY TRACK
   EASTWARD INTO IA THROUGH THE EVENING.  OTHER STORMS MAY REDEVELOP
   THROUGH THE EVENING OVER THIS SAME AREA AS LOW LEVEL JET INCREASES. 
   STRONG INSTABILITY AND 50-60 KNOTS OF EFFECTIVE SHEAR WILL PROMOTE
   SUPERCELLS CAPABLE OF VERY LARGE HAIL AND DAMAGING WINDS.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 27030.
   
   
   ...HART
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