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089 

WWUS20 KWNS 012018

SEL5

SPC WW 012018

ARZ000-LAZ000-TXZ000-020300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 125

NWS STORM PREDICTION CENTER NORMAN OK

320 PM CDT SAT MAY 1 2010



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN AND EASTERN ARKANSAS

       NORTHWEST LOUISIANA

       NORTHEAST TEXAS



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 320 PM UNTIL

1000 PM CDT.



...THIS IS A PARTICULARLY DANGEROUS SITUATION...



DESTRUCTIVE TORNADOES...LARGE HAIL TO 2.5 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 85 STATUTE

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

BATESVILLE ARKANSAS TO 15 MILES SOUTHEAST OF SHREVEPORT

LOUISIANA.  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 124...



DISCUSSION...INTENSE SUPERCELL THUNDERSTORMS ARE EXPECTED TO DEVELOP

THIS AFTERNOON ALONG SURFACE COLD FRONT FROM NORTHEAST TX INTO

CENTRAL AR.  RAPIDLY STRENGTHENING LOW LEVEL WIND FIELDS...COUPLED

WITH A VERY MOIST AND MODERATELY UNSTABLE AIR MASS WILL PROMOTE A

RISK OF STRONG AND POTENTIALLY LONG-TRACK TORNADOES.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

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

550. MEAN STORM MOTION VECTOR 23040.





...HART

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