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964 

WWUS20 KWNS 070032

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MNZ000-WIZ000-070700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 477

NWS STORM PREDICTION CENTER NORMAN OK

735 PM CDT TUE AUG 6 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EAST CENTRAL MINNESOTA

  WEST CENTRAL WISCONSIN



* EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 735 PM

  UNTIL 200 AM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTHWEST

OF SAINT CLOUD MINNESOTA TO 45 MILES NORTH NORTHEAST OF CAMP

DOUGLAS WISCONSIN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).



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...THIS SEVERE THUNDERSTORM WATCH REPLACES

TORNADO WATCH NUMBER 474. WATCH NUMBER 474 WILL NOT BE IN EFFECT

AFTER 735 PM CDT. CONTINUE...WW 475...WW 476...



DISCUSSION...SCATTERED SUPERCELLS WILL CONTINUE TO MOVE ESEWD FROM

MN TOWARD W CENTRAL WI FOR THE NEXT COUPLE OF HOURS IN ADVANCE OF A

MIDLEVEL TROUGH...WHILE STORMS IN CENTRAL MN BEGIN TO MERGE INTO

LINE SEGMENTS.  GIVEN THE RATHER WEAK LOW-LEVEL SHEAR AND MODEST

LOW-LEVEL MOISTURE...LARGE HAIL AND DAMAGING WINDS SHOULD BE THE

MAIN THREATS THROUGH EARLY TONIGHT.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 30040.





...THOMPSON

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