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000 

WWUS20 KWNS 301857

SEL4

SPC WW 301857

ILZ000-INZ000-MOZ000-310300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 394

NWS STORM PREDICTION CENTER NORMAN OK

155 PM CDT FRI MAY 30 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL ILLINOIS

       NORTHWEST INTO WEST CENTRAL INDIANA

       EAST-CENTRAL MISSOURI



EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 155 PM UNTIL

1000 PM 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 55 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 10 MILES WEST OF JEFFERSON

CITY MISSOURI TO 35 MILES EAST NORTHEAST OF LAFAYETTE INDIANA.

FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU4).



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...THIS TORNADO WATCH REPLACES TORNADO

WATCH NUMBER 393. WATCH NUMBER 393 WILL NOT BE IN EFFECT AFTER

155 PM CDT.



DISCUSSION...THUNDERSTORMS WILL INCREASE ACROSS THIS REGION THROUGH

THE EVENING AS STRONG SURFACE HEATING AND CONTINUED LOW LEVEL

MOISTENING ERASE CAP.  AIR MASS WILL BE MODERATELY UNSTABLE WITH

STRONG DEEP LAYER SHEAR SUPPORTING SUPERCELLS AND BOW ECHOES THROUGH

THE EVENING.  ISOLATED TORNADOES AND LARGE HAIL REMAIN

POSSIBLE...ALONG WITH POTENTIAL FOR WIDESPREAD DAMAGING WINDS AS

STORMS ORGANIZE INTO BOWING STRUCTURES THIS EVENING.



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 26030.





...EVANS

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