

202 

WWUS20 KWNS 262340

SEL2

SPC WW 262340

MNZ000-NDZ000-270500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 522

NWS STORM PREDICTION CENTER NORMAN OK

640 PM CDT FRI JUN 26 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHWESTERN MINNESOTA

       PORTIONS OF CENTRAL AND EASTERN NORTH DAKOTA



EFFECTIVE THIS FRIDAY NIGHT FROM 640 PM UNTIL MIDNIGHT CDT.



TORNADOES...HAIL TO 2 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 50 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTHWEST OF

GARRISON NORTH DAKOTA TO 40 MILES EAST SOUTHEAST OF THIEF RIVER

FALLS MINNESOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).



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 517...WW 518...WW

519...WW 520...WW 521...



DISCUSSION...SUPERCELLS HAVE DEVELOPED THIS EVENING ALONG COMPOSITE

WARM FRONT/OUTFLOW BOUNDARY FROM VICINITY OF SURFACE LOW NW OF BIS

TO NEAR GFK.  SLY LLJ SHOULD INTENSIFY THROUGH THE EVENING OVER THE

ERN DAKOTAS ENHANCING ASCENT AND LOW-LEVEL SHEAR ALONG FRONTAL

BOUNDARY WITH A CONTINUED THREAT OF SUPERCELLS CAPABLE OF TORNADOES.



AVIATION...TORNADOES AND 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 25030.





...MEAD/HALES

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