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000 

WWUS20 KWNS 121901

SEL9

SPC WW 121901

NDZ000-SDZ000-130200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 389

NWS STORM PREDICTION CENTER NORMAN OK

200 PM CDT TUE JUN 12 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       LARGE PART OF CENTRAL NORTH DAKOTA

       LARGE PART OF CENTRAL SOUTH DAKOTA



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 200 PM UNTIL

900 PM CDT.



TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 70 MILES NORTHEAST OF MINOT

NORTH DAKOTA TO 80 MILES SOUTH SOUTHEAST OF PHILIP SOUTH DAKOTA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU9).



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.



OTHER WATCH INFORMATION...CONTINUE...WW 384...WW 385...WW

386...WW 387...WW 388...



DISCUSSION...THUNDERSTORMS WILL CONTINUE TO INTENSIFY ALONG/AHEAD OF

N/S FRONTAL ZONE THRU WRN DAKOTAS.  WITH MLCAPES INCREASING TO

2500J/KG AND LOW LEVEL SHEAR OF 20KT...SUPERCELLS ARE LIKELY. IN

ADDITION TO LARGE HAIL/DAMAGING WINDS...TORNADOES ARE POSSIBLE WITH

ANY SUPERCELL.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 21025.





...HALES

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