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WWUS20 KWNS 101813

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SPC WW 101813

MNZ000-NDZ000-SDZ000-110100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 439

NWS STORM PREDICTION CENTER NORMAN OK

115 PM CDT WED AUG 10 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  WEST CENTRAL MINNESOTA

  SOUTHEAST NORTH DAKOTA

  NORTHEAST SOUTH DAKOTA



* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 115 PM

  UNTIL 800 PM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED VERY LARGE HAIL EVENTS TO 3 INCHES IN DIAMETER POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...STRONG THUNDERSTORMS WILL CONTINUE TO DEVELOP NORTH OF

RETREATING WARM FRONT ACROSS THE NORTHERN PLAINS THIS AFTERNOON.

LARGE HAIL IS THE PRIMARY THREAT ALONG WITH LOCALLY DAMAGING WINDS.

CLUSTERS OF SEVERE THUNDERSTORMS WILL PROPAGATE INTO WEST CENTRAL

MINNESOTA AS THE AFTERNOON PROGRESSES.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES SOUTH

SOUTHWEST OF ABERDEEN SOUTH DAKOTA TO 25 MILES NORTHWEST OF

DETROIT LAKES MINNESOTA.  FOR A COMPLETE DEPICTION OF THE WATCH

SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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.



&&



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

TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 27020.





...DARROW

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