

959 

WWUS20 KWNS 230201

SEL8

SPC WW 230201

ARZ000-OKZ000-230900-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 748

NWS STORM PREDICTION CENTER NORMAN OK

800 PM CST MON NOV 22 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHERN AND CENTRAL ARKANSAS

       FAR EAST CENTRAL OKLAHOMA



EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 800 PM UNTIL

300 AM CST.



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 95 STATUTE

MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH OF FLIPPIN

ARKANSAS TO 10 MILES EAST SOUTHEAST OF HOT SPRINGS ARKANSAS.  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 746...WW 747...



DISCUSSION...TSTMS EXPECTED TO PERSIST ALONG SE-MOVING COLD FRONT

NOW MOVING INTO NW AR.  CONVECTION ALSO EXPECTED TO DEEPEN AND

INCREASE IN COVERAGE ALONG PREFRONTAL CONFLUENCE ZONE/WAA AXIS IN

CNTRL/NE AR.  ASCENT ACROSS WW AREA WILL BE ENHANCED BY GLANCING

INFLUENCE OF KS SHORTWAVE IMPULSE.  STRONG...VEERING LOW TO MID-LVL

WIND PROFILES...AMPLE BOUNDARY LAYER MOISTURE...AND RESIDUAL EML

TOGETHER SUGGEST POTENTIAL FOR SUPERCELLS WITH SVR WIND/MARGINALLY

SVR HAIL...AND POSSIBLY A COUPLE TORNADOES...THROUGH EARLY TUE.



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

450. MEAN STORM MOTION VECTOR 24040.





...CORFIDI

