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918 

WWUS20 KWNS 221932

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SPC WW 221932

IAZ000-MNZ000-NEZ000-SDZ000-WIZ000-230400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 497

NWS STORM PREDICTION CENTER NORMAN OK

230 PM CDT SAT AUG 22 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* TORNADO WATCH FOR PORTIONS OF

  NORTHERN AND WESTERN IOWA

  SOUTHERN AND CENTRAL MINNESOTA

  FAR NORTHEAST NEBRASKA

  FAR EASTERN SOUTH DAKOTA

  FAR WESTERN WISCONSIN



* EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 230 PM UNTIL

  1100 PM CDT.



* PRIMARY THREATS INCLUDE...

  A FEW TORNADOES POSSIBLE

  WIDESPREAD DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS

    TO 75 MPH POSSIBLE

  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS

    TO 2 INCHES IN DIAMETER POSSIBLE



SUMMARY...THUNDERSTORMS...INCLUDING SHORT LINES AND BANDS OF

SUPERCELLS...EXPECTED TO FORM OVER WATCH AREA BEGINNING LATER THIS

AFTERNOON...CONTINUING INTO TONIGHT. THE STORMS WILL MOVE/DEVELOP

GENERALLY NORTHEAST AND WILL BE CAPABLE OF TORNADOES...DAMAGING

WIND...AND HAIL.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 105 STATUTE

MILES EAST AND WEST OF A LINE FROM 50 MILES NORTH NORTHWEST OF

SAINT CLOUD MINNESOTA TO 30 MILES SOUTH SOUTHEAST OF STORM LAKE

IOWA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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.



&&



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 22035.





...CORFIDI

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