[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 040326
SEL9
SPC WW 040326
ARZ000-MOZ000-MSZ000-TNZ000-041000-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 159
NWS STORM PREDICTION CENTER NORMAN OK
1025 PM CDT THU APR 3 2008

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

       NORTHEAST ARKANSAS
       MISSOURI BOOTHEEL
       NORTHWEST MISSISSIPPI
       WESTERN TENNESSEE

EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1025 PM
UNTIL 500 AM CDT.

HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHWEST OF
DYERSBURG TENNESSEE TO 45 MILES SOUTH SOUTHEAST OF MEMPHIS
TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

OTHER WATCH INFORMATION...CONTINUE...WW 157...WW 158...

DISCUSSION...LARGE MCC NOW OVERSPREADING AR WILL CONTINUE ENEWD
ACROSS THE MID SOUTH WITHIN STRENGTHENING LOW LEVEL WAA REGIME.
STEEP MID LEVEL LAPSE RATES AND MODEST MUCAPE WILL SUSTAIN A FEW
STRONGER CELLS...WITH VERY STRONG SHEAR SUPPORTIVE OF LONGER-LIVED
SUPERCELLS/LINES.  LARGE HAIL AND ISOLATED DAMAGING WINDS ARE
EXPECTED TO BE PRIMARY SEVERE THREATS AS STORMS SHOULD BE SLIGHTLY
ELEVATED.  HOWEVER...TORNADO THREAT WILL NEED CLOSE SCRUTINY GIVEN
VERY STRONG LOW LEVEL SHEAR.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 25035.


...EVANS


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