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WWUS20 KWNS 260835

SEL0

SPC WW 260835

ILZ000-INZ000-MIZ000-WIZ000-LMZ000-261600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 720

NWS STORM PREDICTION CENTER NORMAN OK

330 AM CDT TUE OCT 26 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL THROUGH NORTHEASTERN ILLINOIS

       WESTERN AND CENTRAL INDIANA

       WESTERN LOWER MICHIGAN

       SOUTHEASTERN WISCONSIN

       LAKE MICHIGAN



EFFECTIVE THIS TUESDAY MORNING FROM 330 AM UNTIL 1100 AM CDT.



TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS

TO 90 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE

MILES EAST AND WEST OF A LINE FROM 50 MILES NORTH NORTHWEST OF

MUSKEGON MICHIGAN TO 25 MILES EAST SOUTHEAST OF SALEM ILLINOIS.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 719...



DISCUSSION...COLD FRONTAL SQLN IN E CNTRL MO EXPECTED TO STRENGTHEN

AND ACCELERATE ENE ACROSS CNTRL IL INTO CNTRL/NRN IND BY MID

MORNING...WHILE BAND OF STORMS NOW EXTENDING FROM N OF STL TO SRN WI

/ASSOCIATED WITH LEAD UPR IMPULSE NOW DEAMPLIFYING IN WRN WI/

CONTINUES EWD AT A SLIGHTLY SLOWER RATE INTO SE WI/NE IL.

STRENGTHENING WIND FIELD/ASCENT WITH POWERFUL JET IMPULSE NOW

ENTERING WRN IA/MO SHOULD SUPPORT EMBEDDED SUSTAINED STORMS/SMALL

SUPERCELLS WITH DMGG WIND AND AN INCREASING RISK FOR TORNADOES IN

WATCH AREA...DESPITE TIME OF DAY.



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

SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 80 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400.

MEAN STORM MOTION VECTOR 23050.





...CORFIDI

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