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000 

WWUS20 KWNS 060217

SEL9

SPC WW 060217

IAZ000-MNZ000-WIZ000-061000-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 469

NWS STORM PREDICTION CENTER NORMAN OK

915 PM CDT THU JUN 5 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN IOWA

       SOUTHEASTERN MINNESOTA

       WESTERN WISCONSIN



EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 915 PM

UNTIL 500 AM CDT.



TORNADOES...HAIL TO 2 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 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 40 MILES SOUTH SOUTHEAST OF

OTTUMWA IOWA TO 40 MILES WEST NORTHWEST OF EAU CLAIRE WISCONSIN.

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 466...WW 467...WW 468...



DISCUSSION...INTENSE S/WV TROUGH/MID LEVEL WIND MAX WILL MOVE NEWD

FROM PLAINS ACROSS WATCH AREA OVERNIGHT.  WITH A VERY

MOIST...UNSTABLE WARM SECTOR S OF E/W WARM FRONT SRN MN...CONDITIONS

ARE FAVORABLE FOR THE ONGOING SEVERE THUNDERSTORMS WRN IA TO

CONDITION WITH INCREASING THREAT OF ORGANIZED DAMAGING WINDS

ASSOCIATED WITH BOWS. EMBEDDED TORNADIC SUPERCELLS ALSO LIKELY

PARTICULARLY NEAR THE WARM FRONT INTERSECTION.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

550. MEAN STORM MOTION VECTOR 22050.





...HALES

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