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URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 404

NWS STORM PREDICTION CENTER NORMAN OK

345 PM CDT SUN JUN 17 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       WESTERN MINNESOTA

       SOUTHEAST NORTH DAKOTA

       NORTHEAST SOUTH DAKOTA



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 345 PM UNTIL

1000 PM CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 35 MILES WEST OF ABERDEEN

SOUTH DAKOTA TO 45 MILES SOUTHEAST OF ALEXANDRIA MINNESOTA.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU4).



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.



DISCUSSION...SCATTERED SUPERCELL THUNDERSTORMS ARE EXPECTED TO FORM

OVER NORTHEAST SD IN THE NEXT COUPLE OF HOURS...SPREADING EASTWARD

ACROSS THE WATCH AREA THROUGH THE EARLY EVENING.  LOCAL VAD/PROFILER

OBSERVATIONS SUGGEST LOW LEVEL AND DEEP LAYER VERTICAL SHEAR ARE

FAVORABLE FOR ROTATING STORMS CAPABLE OF VERY LARGE HAIL AND A FEW

TORNADOES.  STORMS MAY ORGANIZE INTO A BOW ECHO LATER THIS EVENING

WITH AN ENHANCED THREAT OF DAMAGING WINDS AS WELL.



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

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 27035.





...HART

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