SEL3
SPC WW 091846
ARZ000-KSZ000-MOZ000-OKZ000-100200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 123
NWS STORM PREDICTION CENTER NORMAN OK
145 PM CDT THU APR 9 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
PARTS OF WESTERN ARKANSAS
PARTS OF SOUTHEAST KANSAS
PARTS OF SOUTHWEST MISSOURI
MUCH OF EASTERN OKLAHOMA
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 145 PM UNTIL
900 PM CDT.
TORNADOES...HAIL TO 3.5 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 85 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHEAST OF
CHANUTE KANSAS TO 45 MILES WEST SOUTHWEST OF DE QUEEN ARKANSAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).
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.
DISCUSSION...POTENT TROUGH AND STRONG SURFACE LOW MOVING EWD ACROSS
OK AND N/S DRY LINE IN ADVANCE JUST E OF I35 CORRIDOR. AIRMASS IN
ADVANCE OF DRY LINE RAPIDLY DESTABILIZING AND WITH STRONG SHEAR
PROFILES AND LARGE ASCENT WITH TROUGH...SEVERE THUNDERSTORMS WILL
RAPIDLY DEVELOP NEXT SEVERAL HOURS ERN OK. IN ADDITION TO VERY
LARGE HAIL...TORNADOES POSSIBLY STRONG WILL BE POSSIBLE WITH ANY
SUPERCELL THAT DEVELOPS.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24040.
...HALES
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