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WWUS20 KWNS 162236

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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 305

NWS STORM PREDICTION CENTER NORMAN OK

535 PM CDT MON JUN 16 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  NORTHWEST INTO CENTRAL IOWA

  EXTREME SOUTHEAST SOUTH DAKOTA



* EFFECTIVE THIS MONDAY AFTERNOON FROM 535 PM UNTIL MIDNIGHT CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL TORNADOES AND A COUPLE INTENSE TORNADOES LIKELY

  WIDESPREAD DAMAGING WIND GUSTS TO 70 MPH LIKELY

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 2.5 INCHES IN DIAMETER POSSIBLE



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 45 MILES NORTH OF TEKAMAH

NEBRASKA TO 50 MILES SOUTH SOUTHEAST OF MASON CITY IOWA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU5).



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 302...WW 303...WW 304...



DISCUSSION...SUPERCELLS WILL MOVE ENEWD FROM NE NEB INTO NW

IA...WHILE OTHER STORMS CONGEAL INTO A BOWING MCS ACROSS NRN IA.

TORNADOES...SOME STRONG...WILL BE POSSIBLE WITH THE MORE DISCRETE

STORMS THIS EVENING...WHILE WIDESPREAD DAMAGING WINDS WILL BECOME A

GREATER RISK AS THE CONVECTION GROWS UPSCALE.



AVIATION...TORNADOES AND 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

550. MEAN STORM MOTION VECTOR 27035.





...THOMPSON

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