[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 090101
SEL1
SPC WW 090101
ARZ000-ILZ000-KYZ000-MOZ000-TNZ000-090800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 761
NWS STORM PREDICTION CENTER NORMAN OK
800 PM CDT THU OCT 8 2009

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

       MUCH OF NORTHERN ARKANSAS
       SMALL PART OF SOUTHERN ILLINOIS
       PARTS OF WESTERN KENTUCKY
       PARTS OF SOUTHERN MISSOURI
       PARTS OF NORTHWESTERN TENNESSEE

EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 800 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 55 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 60 MILES WEST NORTHWEST OF
RUSSELLVILLE ARKANSAS TO 35 MILES SOUTH SOUTHEAST OF OWENSBORO
KENTUCKY.  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 758...WW 759...WW 760...

DISCUSSION...WARM SECTOR AIR MASS S OF E/W FRONTAL ZONE IS VERY
MOIST...UNSTABLE WITH STRONG SHEAR PROFILES IN SUPPORT OF SUPERCELL
DEVELOPMENT.  STORMS WILL CONTINUE TO DEVELOP VICINITY FRONTAL ZONE
NWRN AR/SRN MO AND SPREAD EWD THRU THE NIGHT. TORNADO SUPERCELLS
WILL BE LIKELY GIVEN THE VEERING SHEAR PROFILES COUPLED WITH MLCAPES
UPWARDS TO 2500 J/KG IN THE WARM SECTOR.

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
550. MEAN STORM MOTION VECTOR 24035.


...HALES


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