

814 

WWUS20 KWNS 102201

SEL0

SPC WW 102201

ARZ000-KSZ000-MOZ000-OKZ000-110500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 150

NWS STORM PREDICTION CENTER NORMAN OK

500 PM CDT MON MAY 10 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF NORTHWEST ARKANSAS

       SMALL PART OF SOUTHEAST KANSAS

       SMALL PART OF SOUTHWEST MISSOURI

       MUCH OF EASTERN OKLAHOMA



EFFECTIVE THIS MONDAY AFTERNOON FROM 500 PM UNTIL MIDNIGHT 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 55 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF CHANUTE

KANSAS TO 65 MILES SOUTH OF MCALESTER OKLAHOMA.  FOR A COMPLETE

DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE

(WOUS64 KWNS WOU0).



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 146...WW 147...WW

148...WW 149...



DISCUSSION...TORNADIC SUPERCELLS HAVE DEVELOPED ALONG/AHEAD OF DRY

LINE CENTRAL OK. WITH EXTREME INSTABILITY SPREADING NEWD AHEAD OF

STORMS AND VERY STRONG SHEAR...THE THREAT FOR LONG TRACK

TORNADOS...POSSIBLY VERY STRONG WILL CONTINUE EWD ACROSS THE WATCH

THRU THE EVENING.



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

600. MEAN STORM MOTION VECTOR 24045.





...HALES

