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Tornado Watch 526
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WW0526 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood High Moderate
Severe Wind 65 kt+ Wind
High 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.
   SEL6
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 526
   NWS STORM PREDICTION CENTER NORMAN OK
   655 PM CDT MON JUN 20 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          WESTERN AND CENTRAL IOWA
          SOUTHWEST MINNESOTA
          EASTERN AND NORTHERN NEBRASKA
          SOUTHEAST SOUTH DAKOTA
   
   EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 655 PM UNTIL
   200 AM CDT.
   
   TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 105 STATUTE
   MILES EAST AND WEST OF A LINE FROM 15 MILES SOUTHEAST OF
   SHENANDOAH IOWA TO 35 MILES NORTHEAST OF MITCHELL SOUTH DAKOTA. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU6).
   
   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 523...WW 524...WW 525...
   
   DISCUSSION...ARC OF SUPERCELLS EXTENDING FROM NEAR ONL TO W OF OLU
   TO W OF BIE EXPECTED TO ACCELERATE NNE/NE LATER THIS EVE AS
   WRN/CNTRL KS VORT LOBE ASSUMES A MORE NEGATIVE TILT.  OTHER STORMS
   MAY CONTINUE TO FORM ALONG N/S INVERTED TROUGH IN SE SD.  IN
   ADDITION...WDLY SCTD STORMS MAY FORM LATER THIS EVE NEAR WEAK WARM
   FRONT IN WRN/CNTRL IA.  THE MAIN ARC OF STORMS SHOULD EVOLVE INTO A
   BROKEN SQLN/QLCS WITH TIME...BUT STRENGTH OF SHEAR AND DEGREE OF
   INSTABILITY SUGGEST A CONTINUED POTENTIAL FOR ISOLD TORNADOES IN
   ADDITION TO LARGE HAIL/HIGH WIND FROM EMBEDDED SUPERCELLS. 
   TORNADOES ALSO CANNOT BE RULED OUT WITH ACTIVITY ALONG INVERTED
   TROUGH...AND WITH ANY STORMS THAT FORM AHEAD OF SQLN IN IA.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   550. MEAN STORM MOTION VECTOR 21035.
   
   
   ...CORFIDI
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