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Severe Thunderstorm Watch 493
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WW0493 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Low Very Low

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
   SEVERE THUNDERSTORM WATCH NUMBER 493
   NWS STORM PREDICTION CENTER NORMAN OK
   115 PM CDT TUE AUG 18 2015

   THE NWS STORM PREDICTION CENTER HAS ISSUED A

   * SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
     WESTERN AND CENTRAL ILLINOIS
     EASTERN MISSOURI

   * EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 115 PM UNTIL
     900 PM CDT.

   * PRIMARY THREATS INCLUDE...
     SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
     ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE
     A TORNADO OR TWO POSSIBLE

   SUMMARY...SCATTERED THUNDERSTORMS EXPECTED DEVELOP/MOVE GENERALLY
   NORTHEAST ACROSS WATCH AREA THROUGH EARLY TONIGHT.  THE STORMS
   LIKELY WILL MERGE INTO BROKEN LINES...WITH EMBEDDED BOWING SEGMENTS
   CAPABLE OF LOCALLY DAMAGING WIND AND...PERHAPS...MARGINALLY SEVERE
   HAIL AND/OR A TORNADO OR TWO.

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
   STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH
   NORTHWEST OF SPRINGFIELD ILLINOIS TO 60 MILES SOUTH SOUTHWEST OF
   SAINT LOUIS MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

   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.

   &&

   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
   A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION
   VECTOR 22030.


   ...CORFIDI
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Page last modified: August 19, 2015
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