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156 

WWUS20 KWNS 120058

SEL4

SPC WW 120058

ILZ000-MOZ000-120700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 404

NWS STORM PREDICTION CENTER NORMAN OK

800 PM CDT SAT JUL 11 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  CENTRAL AND SOUTHWESTERN ILLINOIS

  EXTREME EASTERN MISSOURI



* EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 800 PM

  UNTIL 200 AM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED SIGNIFICANT DAMAGING WIND GUSTS TO 75 MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



SUMMARY...A COMPLEX OF SPORADICALLY SEVERE THUNDERSTORMS MAY PERSIST

THROUGH MUCH OF THIS EVENING AS IT MOVES SOUTHEASTWARD EITHER SIDE

OF A WARM FRONT...AND INTO A FAVORABLY MOIST AIR MASS.  DAMAGING

WIND AND ISOLATED LARGE HAIL ARE THE MAIN CONCERNS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65

STATUTE MILES EITHER SIDE OF A LINE FROM 20 MILES WEST SOUTHWEST

OF SPRINGFIELD ILLINOIS TO 25 MILES SOUTH SOUTHWEST OF SALEM

ILLINOIS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 403...



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 24035.





...EDWARDS

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