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WWUS20 KWNS 162036

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 304

NWS STORM PREDICTION CENTER NORMAN OK

335 PM CDT MON JUN 16 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EASTERN IOWA

  NORTHWEST ILLINOIS



* EFFECTIVE THIS MONDAY AFTERNOON FROM 335 PM UNTIL MIDNIGHT CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER

    POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES WEST

NORTHWEST OF DUBUQUE IOWA TO 15 MILES SOUTH SOUTHEAST OF

BURLINGTON IOWA.  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 302...WW 303...



DISCUSSION...IN THE SHORT-TERM...WIDELY SCATTERED THUNDERSTORMS WILL

CONTINUE TO DEVELOP/SPREAD GENERALLY NORTHEASTWARD ACROSS FAR

EASTERN IA/NORTHWEST IL THROUGH EARLY EVENING. LARGE HAIL WILL BE

THE MAIN RISK WITH THESE STORMS. LATER INTO THE EVENING...CONCERN

WILL INCREASE FOR POTENTIALLY WIDESPREAD DAMAGING WINDS AS AN

UPSTREAM MESOSCALE CONVECTIVE SYSTEM APPROACHES EASTERN IA/NORTHWEST

IL.



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 23025.





...GUYER

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