WATCHES: Severe Thunderstorm Watch Number 699

WWUS20 KWNS 121746
SEL9
SPC WW 121746
ARZ000-LAZ000-MSZ000-TNZ000-130100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 699
NWS STORM PREDICTION CENTER NORMAN OK
1245 PM CDT TUE OCT 12 2010

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

PARTS OF EASTERN ARKANSAS
PARTS OF NORTHEASTERN LOUISIANA
MUCH OF NORTHERN AND PART OF CENTRAL MISSISSIPPI
PARTS OF WESTERN TENNESSEE

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 1245 PM UNTIL
800 PM CDT.

HAIL TO 2 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 60
STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES SOUTH OF
GREENVILLE MISSISSIPPI TO 15 MILES WEST NORTHWEST OF JACKSON
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.

DISCUSSION...THUNDERSTORMS ARE INCREASING AND NUMBER AND INTENSITY
ACROSS ERN AR AHEAD OF UPPER LOW. WITH CONTINUED HEATING...SEVERE
STORMS WILL BE POSSIBLE AS OVERALL ACTIVITY SPREADS EWD ACROSS THE
WATCH. PRIMARY THREA WILL BE LARGE HAIL AND LOCAL DAMAGING WINDS

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 24030.

...HALES

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