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Tornado Watch 213
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WW0213 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood High Moderate
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.
   SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 213
   NWS STORM PREDICTION CENTER NORMAN OK
   1120 AM MDT MON MAY 24 2010
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          WESTERN NEBRASKA
          WESTERN AND CENTRAL SOUTH DAKOTA
          EXTREME SOUTHEAST WYOMING
   
   EFFECTIVE THIS MONDAY MORNING AND EVENING FROM 1120 AM UNTIL 800
   PM MDT.
   
   TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE
   MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH NORTHWEST OF
   MOBRIDGE SOUTH DAKOTA TO 15 MILES EAST SOUTHEAST OF SIDNEY
   NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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 212...
   
   DISCUSSION...THUNDERSTORM DEVELOPMENT IS JUST BEGINNING ACROSS
   EXTREME NE CO/SE WY AND THE NEB PANHANDLE.  THIS CONVECTION WILL
   LIKELY EVOLVE INTO DISCRETE SUPERCELLS IN AN ENVIRONMENT OF STRONG
   VERTICAL SHEAR AND MODERATE INSTABILITY...IN ADVANCE OF A NEGATIVE
   TILT SHORTWAVE TROUGH AND SURFACE LOW MOVING NNEWD FROM CO.  THE
   COMBINATION OF BOUNDARY LAYER DEWPOINTS IN THE MID 60S AND ENHANCED
   LOW-LEVEL SHEAR NEAR THE SURFACE WARM FRONT WILL ENHANCE THE THREAT
   FOR TORNADOES...INCLUDING AN ISOLATED STRONG TORNADO OR TWO...AS
   WELL AS VERY LARGE HAIL.  OTHERWISE...CONVECTION MAY EVOLVE MORE
   INTO CLUSTERS WITH EMBEDDED SUPERCELL STRUCTURES BY LATE
   AFTERNOON...WITH THE ADDITIONAL THREAT OF DAMAGING WINDS.
   
   AVIATION...TORNADOES AND 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 20045.
   
   
   ...THOMPSON
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Page last modified: December 03, 2021
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