

000 

WWUS20 KWNS 251812

SEL8

SPC WW 251812

ARZ000-KSZ000-MOZ000-OKZ000-260100-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 358

NWS STORM PREDICTION CENTER NORMAN OK

115 PM CDT SUN MAY 25 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       A LARGE PART OF NORTHWEST ARKANSAS

       SMALL PART OF SOUTHEAST KANSAS

       MUCH OF SOUTHWEST MISSOURI

       PARTS OF EASTERN OKLAHOMA



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 115 PM UNTIL 800

PM CDT.



TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH OF POTEAU

OKLAHOMA TO 60 MILES WEST NORTHWEST OF FORT LEONARD WOOD

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



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 357...



DISCUSSION...THUNDERSTORMS WILL INCREASE RAPIDLY IN NUMBER AND

INTENSITY ACROSS THE WATCH WHERE THE AIR MASS IS NOW VERY TO

EXTREMELY UNSTABLE WITH MLCAPES ABOVE 3000 J/KG.  THE MCV MOVING

NEWD INTO NERN OK WILL ENHANCE BOTH SHEAR/ASCENT FOR SUPERCELL

POTENTIAL.  LARGE HAIL AND ISOLATED TORNADOES WILL BE ASSOCIATED

WITH ANY SUPERCELL.



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

SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

550. MEAN STORM MOTION VECTOR 25020.





...HALES

