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071 

WWUS20 KWNS 012303

SEL0

SPC WW 012303

MNZ000-NDZ000-SDZ000-020500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 460

NWS STORM PREDICTION CENTER NORMAN OK

600 PM CDT SAT AUG 1 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  WESTERN AND SOUTHERN MINNESOTA

  SOUTHEAST NORTH DAKOTA

  EASTERN SOUTH DAKOTA



* EFFECTIVE THIS SATURDAY NIGHT FROM 600 PM UNTIL MIDNIGHT CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2

    INCHES IN DIAMETER POSSIBLE

  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A TORNADO OR TWO POSSIBLE



SUMMARY...SCATTERED THUNDERSTORMS EXPECTED TO INCREASE/DEVELOP OVER

EASTERN SD THIS EVENING..WITH ADDITIONAL STORMS POSSIBLY FORMING A

BIT LATER THIS EVENING EASTWARD INTO CENTRAL AND SOUTHERN MINNESOTA.

SOME OF THE STORMS WILL BECOME SUPERCELLS CAPABLE OF LARGE HAIL AND

LOCALLY DAMAGING WIND. ONE OR TWO TORNADOES ALSO CANNOT BE RULED

OUT...MAINLY ALONG/NEAR THE MINNESOTA RIVER VALLEY IN W CENTRAL AND

SW MINNESOTA LATER THIS EVENING.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

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

OF ABERDEEN SOUTH DAKOTA TO 45 MILES EAST OF REDWOOD FALLS

MINNESOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 30020.





...CORFIDI

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