Monday, June 14, 2010

WATCHES: Severe Thunderstorm Watch Number 316

WWUS20 KWNS 141802
SEL6
SPC WW 141802
NCZ000-TNZ000-VAZ000-WVZ000-142300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 316
NWS STORM PREDICTION CENTER NORMAN OK
205 PM EDT MON JUN 14 2010

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

NORTHWESTERN NORTH CAROLINA
EASTERN TENNESSEE
SOUTHWEST VIRGINIA
SOUTHEAST WEST VIRGINIA

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 205 PM UNTIL 700
PM EDT.

HAIL TO 1.5 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 45
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTH
NORTHEAST OF DANVILLE VIRGINIA TO 50 MILES WEST NORTHWEST OF
KNOXVILLE TENNESSEE. FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).

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.

DISCUSSION...AN INCREASING LINE OF STRONG THUNDERSTORMS WILL SPREAD
ACROSS THE WATCH AREA THIS AFTERNOON...WHILE NEW STORMS DEVELOP
SOUTHWESTWARD INTO EASTERN TN. STRONG INSTABILITY AND HIGH MOISTURE
PRECIP WATER VALUES WILL COMPENSATE FOR RATHER WEAK WIND
FIELDS...PROMOTING A RISK OF LOCALLY DAMAGING WIND GUSTS.

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 31025.


...HART

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