

000 

WWUS20 KWNS 180009

SEL5

SPC WW 180009

ARZ000-LAZ000-MOZ000-MSZ000-180700-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 715

NWS STORM PREDICTION CENTER NORMAN OK

710 PM CDT WED OCT 17 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       EASTERN ARKANSAS

       NORTHEAST LOUISIANA

       MISSOURI BOOTHEEL

       WESTERN AND CENTRAL MISSISSIPPI



EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 710 PM

UNTIL 200 AM CDT.



TORNADOES...HAIL TO 1.5 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 60 STATUTE

MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHEAST OF

WALNUT RIDGE ARKANSAS TO 55 MILES EAST SOUTHEAST OF NATCHEZ

MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 711...WW 712...WW

713...WW 714...



DISCUSSION...SCATTERED THUNDERSTORMS ARE LIKELY TO INTENSIFY THIS

EVENING OVER EASTERN AR INTO EASTERN LA AS VIGOROUS UPPER TROUGH

ROTATES EASTWARD ACROSS MS VALLEY.  VERY STRONG WIND FIELDS...LARGE

SCALE FORCING...AND SURFACE DEWPOINTS IN THE 70S WILL PROMOTE A RISK

OF EMBEDDED SUPERCELLS CAPABLE OF DAMAGING WINDS AND TORNADOES.



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

SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 24035.





...HART

