[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 012054
SEL5
SPC WW 012054
ARZ000-MOZ000-MSZ000-TNZ000-020400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 605
NWS STORM PREDICTION CENTER NORMAN OK
350 PM CDT SAT SEP 1 2012

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

       CENTRAL THROUGH NORTHEAST AND EAST CENTRAL ARKANSAS
       THE MISSOURI BOOTHEEL
       NORTHWEST MISSISSIPPI
       WEST TENNESSEE

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 350 PM UNTIL
1100 PM 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 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH NORTHWEST OF
DYERSBURG TENNESSEE TO 40 MILES EAST SOUTHEAST OF LITTLE ROCK
ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).

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 602...WW 603...WW 604...

DISCUSSION...TSTMS ARE BEGINNING TO FORM ALONG LOW-LVL CONVERGENCE
AXIS MARKING SRN FRINGE OF CIRCULATION ASSOCIATED WITH EX-HRCN
ISSAC.  ATTM IT APPEARS THAT THE STORMS ARE BEING SUPPORTED BY
NARROWING CORRIDOR OF DEEPLY-MIXED ENVIRONMENT EXTENDING E FROM OK.
THE STORMS THEREFORE INITIALLY MAY BE SOMEWHAT
OUTFLOW-DOMINANT...WITH DMGG WIND THE MAIN SVR THREAT. WITH
TIME...HOWEVER...SOME OF THE STORMS MAY TAP RICHER...MORE
STRONGLY-SHEARED LOW-LVL ENVIRONMENT OVER ERN AR/W TN. THIS MAY
FOSTER AN INCREASING RISK FOR LOW-LVL MESOS/TORNADOES IN ADDITION TO
CONTINUING RISK FOR DMGG WIND WITH SMALL BOWS/LEWPS IN EVENTUAL BKN
SQLN.

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 25030.


...CORFIDI


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