

505 

WWUS20 KWNS 192350

SEL8

SPC WW 192350

ARZ000-OKZ000-200500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 88

NWS STORM PREDICTION CENTER NORMAN OK

655 PM CDT MON MAR 19 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHWEST ARKANSAS

       EASTERN OKLAHOMA



EFFECTIVE THIS MONDAY NIGHT FROM 655 PM UNTIL MIDNIGHT 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 50 STATUTE

MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH NORTHEAST OF

FAYETTEVILLE ARKANSAS TO 40 MILES SOUTH OF MCALESTER OKLAHOMA.

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 85...WW 86...WW 87...



DISCUSSION...ISOLATED THUNDERSTORMS HAVE BEGUN FORMING IN THE WARM

SECTOR ACROSS EASTERN OK...WHERE STRONG VERTICAL SHEAR AND

SUFFICIENT CAPE ARE PRESENT.  THEREFORE...HAVE UPGRADED THE ONGOING

SEVERE THUNDERSTORM WATCH TO A TORNADO WATCH FOR THIS REGION.



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 22035.





...HART

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