WATCHES: Tornado Watch Number 716

WWUS20 KWNS 192214
SEL6
SPC WW 192214
ILZ000-INZ000-KYZ000-MIZ000-OHZ000-LMZ000-200500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 716
NWS STORM PREDICTION CENTER NORMAN OK
615 PM EDT WED AUG 19 2009

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

EAST CENTRAL ILLINOIS
MUCH OF INDIANA
FAR NORTHERN KENTUCKY
SOUTHERN LOWER MICHIGAN
WESTERN OHIO
LAKE MICHIGAN

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 615 PM
UNTIL 100 AM EDT.

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 90 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTHWEST OF
DANVILLE ILLINOIS TO 60 MILES NORTH NORTHEAST OF DAYTON OHIO.
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 713...WW 714...WW 715...

DISCUSSION...ISOLD TSTMS EXPECTED TO CONTINUE FORMING INVOF DIFFUSE
W-E WARM FRONT NEAR I-70 IN CNTRL IL/IND/OH...WHILE BAND OF
STORMS/SUPERCELLS ASSOCIATED WITH CNTRL IL MCS CONTINUES ENEWD.
AMPLE DEEP SHEAR EXPECTED TO PERSIST FOR ADDITIONAL ROTATING
STORMS...WITH WIND FIELD POSSIBLY INCREASING SLIGHTLY AS REGION IS
GLANCED BY BAND OF STRONGER FLOW SWEEPING NEWD AROUND BASE OF LARGER
SCALE UPR TROUGH IN MN. MOIST LOW LVL ENVIRONMENT AND S-SELY LOW
LVL FLOW MAY SUFFICIENTLY ENHANCE LOW LVL STORM ROTATION TO POSE A
THREAT FOR TORNADOES.

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 22030.

...CORFIDI

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