[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 111831
SEL3
SPC WW 111831
ALZ000-ARZ000-ILZ000-KYZ000-MSZ000-TNZ000-120200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 373
NWS STORM PREDICTION CENTER NORMAN OK
130 PM CDT MON JUN 11 2012

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

       FAR NORTHWEST ALABAMA
       CENTRAL AND EASTERN ARKANSAS
       FAR SOUTHERN ILLINOIS
       WESTERN KENTUCKY
       NORTHERN MISSISSIPPI
       WESTERN TENNESSEE

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 130 PM UNTIL 900
PM CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 5 MILES SOUTH
SOUTHWEST OF HOT SPRINGS ARKANSAS TO 65 MILES NORTH NORTHEAST OF
MUSCLE SHOALS ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

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 372...

DISCUSSION...BOW ECHO MCS WITH A HISTORY OF DAMAGING WINDS AND LARGE
HAIL IS EXPECTED TO CONTINUE SEWD ACROSS THE WATCH AREA THIS
AFTERNOON AND EVENING...PERHAPS ACCELERATING WITH TIME.  INFLOW AIR
MASS IS CHARACTERIZED BY STEEP MIDLEVEL LAPSE RATES AND RICH
BOUNDARY LAYER MOISTURE...YIELDING MLCAPE VALUES OF 2000-4000 J/KG.
WHEN COUPLED WITH A 40-50 KT DESCENDING MESOSCALE REAR INFLOW JET
/PER SGF VAD OBS/...SETUP APPEARS FAVORABLE FOR A WIDESPREAD
DAMAGING WIND EVENT.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 30035.


...MEAD


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