

297 

WWUS20 KWNS 312051

SEL1

SPC WW 312051

ILZ000-010300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 601

NWS STORM PREDICTION CENTER NORMAN OK

350 PM CDT FRI AUG 31 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL ILLINOIS



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 350 PM UNTIL

1000 PM CDT.



TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND

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

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 40 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 80 MILES WEST OF SPRINGFIELD

ILLINOIS TO 20 MILES EAST NORTHEAST OF MATTOON ILLINOIS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU1).



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 600...



DISCUSSION...AREA OF TSTMS IN W CNTRL IL...SOME OF WHICH HAVE SHOWN

LOW-LVL ROTATION...EXPECTED TO MOVE/DEVELOP NNE INTO CNTRL IL A BIT

LATER THIS AFTN/EVE.  STORMS MAY CONTINUE TO EXHIBIT LOW-LVL

ROTATION GIVEN PRESENCE OF DIFFUSE WNW-ESE WARM FRONT APPROACHING

SRN PART OF WW...AND CONTINUED NNE MOVEMENT OF REMNANT CIRCULATION

OF FORMER HRCN ISAAC.



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

SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 19030.





...CORFIDI

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