

000 

WWUS20 KWNS 171543

SEL9

SPC WW 171543

ARZ000-KSZ000-MOZ000-OKZ000-172300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 709

NWS STORM PREDICTION CENTER NORMAN OK

1045 AM CDT WED OCT 17 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHWEST ARKANSAS

       SOUTHEAST KANSAS

       SOUTHWEST MISSOURI

       NORTHEAST OKLAHOMA



EFFECTIVE THIS WEDNESDAY MORNING AND EVENING FROM 1045 AM UNTIL

600 PM CDT.



TORNADOES...HAIL TO 2 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 80 STATUTE

MILES EAST AND WEST OF A LINE FROM 55 MILES NORTHEAST OF CHANUTE

KANSAS TO 10 MILES SOUTH SOUTHEAST OF FORT SMITH ARKANSAS.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU9).



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 708...



DISCUSSION...STRONG SYSTEM CONTINUES TO DEEPEN INTO PLAINS WITH

RAPID INCREASE IN MOISTURE/INSTABILITY NWD THROUGH WATCH AREA.

SEVERE THUNDERSTORMS NRN OK EXPECTED TO CONTINUE DEVELOPING NEWD

WITH INCREASING POTENTIAL FOR TORNADIC SUPERCELLS DURING THE

AFTERNOON.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 23040.





...HALES

