

919 

WWUS20 KWNS 110050

SEL9

SPC WW 110050

ILZ000-MOZ000-110800-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 369

NWS STORM PREDICTION CENTER NORMAN OK

745 PM CDT WED JUN 10 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND SOUTHERN ILLINOIS

       SOUTHEASTERN MISSOURI



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 745 PM

UNTIL 300 AM CDT.



TORNADOES...HAIL TO 1.5 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 65 STATUTE

MILES EAST AND WEST OF A LINE FROM 20 MILES EAST NORTHEAST OF

DECATUR ILLINOIS TO 20 MILES SOUTH OF POPLAR BLUFF MISSOURI.  FOR

A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH

OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 365...WW 366...WW

367...WW 368...



DISCUSSION...LOOSELY-ORGANIZED CONVECTIVE SYSTEM IN CNTRL MO...AND

MORE ISOLD STORMS FORMING IN DPVA/WAA AREA AHEAD OF IT...EXPECTED TO

CONTINUE GENERALLY ENE ACROSS THE MS RVR LATER THIS EVE.

COMBINATION OF WEAK LOW LVL VEERING PROFILES ALONG W-E STNRY FRONT

OVER E CNTRL MO-CNTRL IL...MODERATE DEEP WLY SHEAR ALONG THIS

BOUNDARY...AND RELATIVELY SMALL TEMPERATURE-DEW POINT SPREADS

SUGGEST POTENTIAL FOR A FEW SEMI-DISCRETE SUPERCELLS/POSSIBLE ISOLD

TORNADOES.  FARTHER S...SERN MO MAY BE GRAZED BY NRN PART OF BOW MCS

NOW IN NW AR AS THAT SYSTEM CONTINUES ENE AT 40-50 KTS.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 25040.





...CORFIDI

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