WATCHES: Severe Thunderstorm Watch Number 756

WWUS20 KWNS 060943
SEL6
SPC WW 060943
OKZ000-TXZ000-061700-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 756
NWS STORM PREDICTION CENTER NORMAN OK
440 AM CDT TUE OCT 6 2009

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

SOUTHWEST THROUGH EAST CENTRAL OKLAHOMA
NORTH TEXAS

EFFECTIVE THIS TUESDAY MORNING FROM 440 AM UNTIL NOON CDT.

HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 40
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST OF
WICHITA FALLS TEXAS TO 10 MILES EAST NORTHEAST OF POTEAU
OKLAHOMA. 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...TSTMS FORMING IN AREA OF SUSTAINED WARM/MOIST ADVECTION
AHEAD OF COLD FRONT APPROACHING THE RED RIVER EXPECTED TO
MOVE/DEVELOP ENEWD THROUGH LATE THIS MORNING AS REGION IS GLANCED BY
UPR DIVERGENCE ASSOCIATED WITH SHORTWAVE IMPULSE CROSSING THE CNTRL
PLNS/MID MO VLY. TEMPORAL VEERING OF CONFLUENT SWLY LLJ ALSO
SUGGESTS POTENTIAL FOR REGENERATIVE ACTIVITY TOWARD THE WSW ATOP
DEEPENING POST-FRONTAL COOL DOME. QUALITY OF SLIGHTLY ELEVATED
MOISTURE INFLOW WITH EWD EXTENT /PW AOA 1,50 INCHES/...AND 50-60 KT
UNIDIRECTIONAL CLOUD LAYER SHEAR...FURTHER SUGGEST LIKELIHOOD FOR A
FEW SUPERCELLS WITH HAIL AND POSSIBLY LOCALLY DMGG WIND.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 26040.

...CORFIDI

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