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000 

WWUS20 KWNS 011440

SEL5

SPC WW 011440

ILZ000-INZ000-KYZ000-020000-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 45

NWS STORM PREDICTION CENTER NORMAN OK

840 AM CST THU MAR 1 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF EASTERN AND SOUTHERN ILLINOIS

       PARTS OF SOUTHERN AND WESTERN INDIANA

       PARTS OF CENTRAL AND WESTERN KENTUCKY



EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 840 AM UNTIL 600

PM CST.



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 80 STATUTE

MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH NORTHEAST OF

DANVILLE ILLINOIS TO 20 MILES WEST OF FORT CAMPBELL KENTUCKY.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 42...WW 43...WW 44...



DISCUSSION...INTENSE SURFACE LOW MOVING INTO IA WITH VERY STRONG

MID/UPPER JET DRIVING NEWD ACROSS MID MS AND LOWER OH VALLEY.  AIR

MASS EXPECTED TO DESTABILIZE NWD AHEAD OF COLD FRONT WITH VERY

FAVORABLE CONDITIONS FOR DEVELOPMENT OF SUPERCELLS/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

450. MEAN STORM MOTION VECTOR 24050.





...HALES

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