[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 100347
SEL7
SPC WW 100347
ARZ000-LAZ000-MOZ000-MSZ000-TNZ000-101000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 127
NWS STORM PREDICTION CENTER NORMAN OK
1050 PM CDT THU APR 9 2009

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

       NORTHEAST ARKANSAS
       NORTHEAST LOUISIANA
       EXTREME SOUTHEAST MISSOURI
       NORTHWEST MISSISSIPPI
       WESTERN TENNESSEE

EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1050 PM
UNTIL 500 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 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 50 MILES NORTHWEST OF
DYERSBURG TENNESSEE TO 55 MILES EAST SOUTHEAST OF MONROE
LOUISIANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

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 125...WW 126...

DISCUSSION...LINE OF SEVERE STORMS IN CENTRAL/NRN AR WILL LIKELY
PERSIST AND SPREAD E OF THE MS RIVER OVERNIGHT...IN CONJUNCTION WITH
THE EWD PROGRESS OF THE STRONG MID LEVEL TROUGH NOW MOVING OVER WRN
AR.  FARTHER S...MORE DISCRETE STORMS HAVE BEEN THE PRIMARY
CONVECTIVE MODE FROM CENTRAL/SRN AR INTO NRN LA.  THE ENVIRONMENT
WILL STILL BE FAVORABLE FOR SUPERCELLS OVERNIGHT AS LOW-LEVEL
MOISTURE INCREASES SLOWLY AND STEEP LAPSE RATES WITH THE MID LEVEL
TROUGH SPREAD EWD.  DAMAGING WINDS AND LARGE HAIL SHOULD BE THE MOST
COMMON THREATS...THOUGH AN ISOLATED TORNADO OR TWO WILL STILL BE
POSSIBLE GIVEN THE STRONG LOW-LEVEL SHEAR.

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
450. MEAN STORM MOTION VECTOR 27035.


...THOMPSON
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