[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 072340
SEL7
SPC WW 072340
ALZ000-TNZ000-080500-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 257
NWS STORM PREDICTION CENTER NORMAN OK
640 PM CDT SAT JUN 7 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
  NORTHERN ALABAMA
  MIDDLE TENNESSEE

* EFFECTIVE THIS SATURDAY NIGHT FROM 640 PM UNTIL MIDNIGHT CDT.

* PRIMARY THREATS INCLUDE...
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF
NASHVILLE TENNESSEE TO 15 MILES SOUTHWEST OF HUNTSVILLE ALABAMA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU7).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 252...WW 253...WW
254...WW 255...WW 256...

DISCUSSION...LOOSELY-ORGANIZED BANDS OF STORMS IN MODESTLY SHEARED
ENVIRONMENT EXPECTED TO CONTINUE SPREADING GENERALLY E ACROSS THE
MIDDLE TN VLY THROUGH LATER THIS EVE. WHILE BOTH BUOYANCY AND SHEAR
DIMINISH WITH EWD EXTENT...REGION WILL BE GLANCED BY ASCENT AND
STRONGER WIND FIELD ASSOCIATED WITH PROGRESSIVE MID-MS VLY UPR VORT.
THIS MAY SUPPORT A RISK FOR SVR HAIL AND WIND IN STRONGER UPDRAFTS.

AVIATION...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 500. MEAN STORM
MOTION VECTOR 26025.


...CORFIDI

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