

000 

WWUS20 KWNS 232030

SEL3

SPC WW 232030

KSZ000-OKZ000-TXZ000-240400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 293

NWS STORM PREDICTION CENTER NORMAN OK

330 PM CDT WED MAY 23 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHWEST KANSAS

       NORTHWEST OKLAHOMA

       TEXAS PANHANDLE



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 330 PM UNTIL

1100 PM CDT.



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



DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 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 70 STATUTE

MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH NORTHEAST OF

DODGE CITY KANSAS TO 50 MILES SOUTHEAST OF AMARILLO TEXAS.  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.



OTHER WATCH INFORMATION...CONTINUE...WW 290...WW 291...WW 292...



DISCUSSION...SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS

AFTERNOON AND EVENING ACROSS PARTS OF SOUTHWEST KS AND THE TX

PANHANDLE... SPREADING EASTWARD INTO NORTHWEST OK.  AIR MASS OVER

THIS REGION IS BECOMING VERY UNSTABLE AS LOW LEVEL MOISTURE SPREADS

NORTHWESTWARD BENEATH EXTREMELY STEEP LOW/MID LEVEL LAPSE RATES.

INCREASING VERTICAL SHEAR PROFILES THROUGH THE EVENING WILL PROMOTE

SUPERCELL STORMS CAPABLE OF VERY LARGE HAIL...DAMAGING WINDS...AND

STRONG TORNADOES.



AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 24035.





...HART

