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Severe Thunderstorm Watch 435
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WW0435 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Very 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.
   SEL5

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 435
   NWS Storm Prediction Center Norman OK
   330 AM CDT Sun Jul 23 2017

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Central and southern Illinois

   * Effective this Sunday morning from 330 AM until 800 AM CDT.

   * Primary threats include...
     Scattered damaging winds and isolated significant gusts to 75
       mph possible

   SUMMARY...Thunderstorms with a history of severe gusts -- including
   measured 62-kt gust at SET (St. Charles MO) at 802Z -- will continue
   to offer a threat for damaging wind across the new watch area.  The
   complex should weaken over southeastern IL/southwestern Indiana as
   it moves deeper into outflow air from earlier storms.  WFO LSX has
   extended watch 434 eastward into more of IL and this new watch wraps
   around that extension.

   The severe thunderstorm watch area is approximately along and 60
   statute miles north and south of a line from 50 miles northwest of
   Salem IL to 45 miles southeast of Mattoon IL. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU5).

   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 434...

   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE and ALOFT
   TO 1 INCH. EXTREME TURBULENCE and SURFACE WIND GUSTS TO 65 KNOTS.
   A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION
   VECTOR 27035.


   ...Edwards
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Page last modified: July 23, 2017
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