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Particularly Dangerous Situation (PDS) Tornado Watch 57
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WW0057 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood High High
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.
   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 57
   NWS STORM PREDICTION CENTER NORMAN OK
   955 AM CST FRI MAR 2 2012
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          CENTRAL AND SOUTHERN ILLINOIS
          CENTRAL AND SOUTHERN INDIANA
          WESTERN KENTUCKY
          SOUTHEAST MISSOURI
   
   EFFECTIVE THIS FRIDAY MORNING AND EVENING FROM 955 AM UNTIL 600
   PM CST.
   
   ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
   
   DESTRUCTIVE TORNADOES...LARGE HAIL TO 2.5 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 90 STATUTE
   MILES EAST AND WEST OF A LINE FROM 50 MILES SOUTH OF CAPE
   GIRARDEAU MISSOURI TO 25 MILES NORTH OF DANVILLE ILLINOIS.  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...CONTINUE...WW 55...WW 56...
   
   DISCUSSION...A VOLATILE ENVIRONMENT IS DEVELOPING TODAY ACROSS
   NWD-EXPANDING WARM SECTOR...FEATURING MLCAPE VALUES OF 1000-2500
   J/KG...DEEP-LAYER SHEAR OF 50-60 KT AND EFFECTIVE SRH OF 300-600
   M2/S2.  TSTMS DEVELOPING ALONG AND AHEAD OF COLD FRONT OVER SERN
   MO/W-CNTRL IL ARE EXPECTED TO EVOLVE INTO INTENSE SUPERCELLS CAPABLE
   OF LONG-TRACKED...SIGNIFICANT TORNADOES.  LARGE HAIL AND DAMAGING
   WINDS ARE ALSO LIKELY.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   500. MEAN STORM MOTION VECTOR 25045.
   
   
   ...MEAD
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Page last modified: March 03, 2012
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