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Severe Thunderstorm Watch 138
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WW0138 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
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 138
   NWS STORM PREDICTION CENTER NORMAN OK
   520 PM CDT SAT MAY 10 2014

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     EXTREME WEST CENTRAL ILLINOIS
     CENTRAL AND NORTHEAST MISSOURI

   * EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 520 PM UNTIL
     1100 PM CDT.

   * PRIMARY THREATS INCLUDE...
     SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2.5
       INCHES IN DIAMETER LIKELY
     SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
     A TORNADO OR TWO POSSIBLE

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES WEST
   NORTHWEST OF CHILLICOTHE MISSOURI TO 15 MILES SOUTHEAST OF SAINT
   LOUIS MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).

   PRECAUTIONARY/PREPAREDNESS ACTIONS...

   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.

   &&

   OTHER WATCH INFORMATION...CONTINUE...WW 137...

   DISCUSSION...ONGOING SUPERCELLS ACROSS NW/N CENTRAL MO WILL LIKELY
   PERSIST FOR SEVERAL MORE HOURS WHILE MOVING ESEWD ALONG THE SURFACE
   WARM FRONT INTO E CENTRAL/NE MO.  LARGE HAIL WILL BE THE PRIMARY
   THREAT FOR THE NEXT FEW HOURS...WITH THE RISK FOR DAMAGING WINDS AND
   SOME STORM MERGERS/UPSCALE GROWTH INTO A CLUSTER LATER THIS EVENING.
    A TORNADO CANNOT BE RULED OUT...BUT THIS THREAT SHOULD REMAIN
   LIMITED BY MARGINAL LOW-LEVEL MOISTURE.

   AVIATION...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 29025.


   ...THOMPSON
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Page last modified: May 11, 2014
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