

000 

WWUS20 KWNS 302224

SEL6

SPC WW 302224

ILZ000-INZ000-KYZ000-MOZ000-310600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 776

NWS STORM PREDICTION CENTER NORMAN OK

520 PM CDT WED JUL 30 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN ILLINOIS

       SOUTHWEST INDIANA

       WESTERN KENTUCKY

       SOUTHERN AND EASTERN MISSOURI



EFFECTIVE THIS WEDNESDAY AFTERNOON AND THURSDAY MORNING FROM 520

PM UNTIL 100 AM CDT.



TORNADOES...HAIL TO 1 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 95 STATUTE

MILES EAST AND WEST OF A LINE FROM 10 MILES NORTH NORTHEAST OF

MOUNT VERNON ILLINOIS TO 40 MILES EAST SOUTHEAST OF WEST PLAINS

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 774...WW 775...



DISCUSSION...WIDELY SCTD TSTMS/POSSIBLE SUPERCELLS EXPECTED TO

PERSIST ON SRN EDGE OF REMNANT CIRCULATION OF TS DOLLY.  BAND OF

35-40 KT 700-500 MB FLOW...COUPLED WITH VERY HI PWS/MOIST BOUNDARY

LAYER...AND LIGHT ELY NEAR-SFC FLOW ON N SIDE OF SFC FRONT STALLED

W/E FROM S CNTRL MO INTO SRN IL...SUGGESTS POSSIBILITY FOR A FEW

LONGER-LIVED CELLS WITH THE POTENTIAL FOR HIGH WIND/ISOLD TORNADOES.

 STORMS MAY BE SLOW TO DIE AFTER SUNSET GIVEN RICH

MOISTURE/CONTINUED WSWLY LOW-LVL FLOW.



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

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

GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.

MEAN STORM MOTION VECTOR 28030.





...CORFIDI

