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905 

WWUS20 KWNS 181834

SEL4

SPC WW 181834

IAZ000-ILZ000-MOZ000-WIZ000-190300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 494

NWS STORM PREDICTION CENTER NORMAN OK

130 PM CDT TUE AUG 18 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  EASTERN IOWA

  WESTERN AND NORTHERN ILLINOIS

  FAR NORTHEAST MISSOURI

  SOUTHERN AND WESTERN WISCONSIN



* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 130 PM UNTIL

  1000 PM CDT.



* PRIMARY THREATS INCLUDE...

  A FEW TORNADOES POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY

  ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE



SUMMARY...THUNDERSTORMS EXPECTED TO DEVELOP / INCREASE IN COVERAGE

AND STRENGTH OVER WATCH AREA THROUGH EARLY TONIGHT. SOME MAY BECOME

SUPERCELLS CAPABLE OF TORNADOES...IN ADDITION TO LOCALLY DAMAGING

WIND AND PERHAPS AN INSTANCE OR TWO OF MARGINALLY SEVERE HAIL.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 5 MILES NORTHWEST OF CAMP

DOUGLAS WISCONSIN TO 25 MILES SOUTH SOUTHWEST OF PEORIA ILLINOIS.

 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU4).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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 493...



AVIATION...TORNADOES AND 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 550.

MEAN STORM MOTION VECTOR 21030.





...CORFIDI

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