[BNAWX] Severe Local Storm Watch and Watch Cancellation

[EMWIN Server]

WWUS20 KWNS 272037
SEL8
SPC WW 272037
TNZ000-280500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 238
NWS STORM PREDICTION CENTER NORMAN OK
335 PM CDT WED APR 27 2011

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

       MIDDLE AND EASTERN TENNESSEE

EFFECTIVE THIS WEDNESDAY AFTERNOON FROM 335 PM UNTIL MIDNIGHT CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 70 MILES WEST SOUTHWEST OF
NASHVILLE TENNESSEE TO 25 MILES EAST OF KNOXVILLE TENNESSEE.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU8).

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 232...WW 233...WW
234...WW 235...WW 236...

DISCUSSION...A VERY UNSTABLE AIRMASS IS EXPECTED TO GRADUALLY
DEVELOP NORTHWARD INTO TN THIS EVENING IN THE WAKE OF A MORNING MCS.
WITHIN AN INCREASINGLY SHEARED ENVIRONMENT...ACCENTUATED BY
LONG/CURVING LOW LEVEL HODOGRAPHS...SUPERCELLS CAPABLE OF TORNADOES
/SOME STRONG/ WILL BE AN INCREASING/MORE WIDESPREAD CONCERN INTO
THIS EVENING.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 24040.


...GUYER/HART
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