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Particularly Dangerous Situation (PDS) Tornado Watch 77
Initial RADAR image for Watch 77
Initial List of Counties in Watch 77 (WOU)
Note: The Watch Probability Tables are experimental.
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Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 77
   NWS STORM PREDICTION CENTER NORMAN OK
   840 PM CST SUN MAR 12 2006
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          SOUTHEAST IOWA
          NORTHERN AND CENTRAL ILLINOIS
          NORTHWEST INDIANA
          EXTREME EASTERN KANSAS
          MUCH OF MISSOURI
          SOUTHEAST WISCONSIN
          LAKE MICHIGAN
   
   EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 840 PM UNTIL
   400 AM CST.
   
   ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
   
   DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 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 110 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 50 MILES EAST SOUTHEAST OF
   MARSEILLES ILLINOIS TO 45 MILES NORTH NORTHWEST OF JOPLIN
   MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).
   
   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...THIS TORNADO WATCH REPLACES TORNADO
   WATCH NUMBER 73...TORNADO WATCH NUMBER 75. WATCH NUMBER 73 75 WILL
   NOT BE IN EFFECT AFTER 840 PM CST. CONTINUE...WW 74...WW 76...
   
   DISCUSSION...WIDESPREAD SEVERE STORMS ARE AFFECTING PARTS OF
   WESTERN/CENTRAL MO TONIGHT...AS WELL AS PARTS OF NORTHERN AND
   CENTRAL IL.  THESE AREAS WILL CONTINUE TO BE AFFECTED BY SUPERCELL
   STORMS CAPABLE OF VERY LARGE HAIL...DAMAGING WINDS...AND STRONG
   TORNADOES.  THREAT WILL LIKELY PERSIST MUCH OF THE NIGHT AS LOW
   LEVEL JET BECOMES VERY STRONG AND UPPER SYSTEM APPROACHES.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
   GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
   MEAN STORM MOTION VECTOR 25040.
   
   
   ...HART
   
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Page last modified: March 13, 2006
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