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WWUS20 KWNS 222025

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ARZ000-230300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 330

NWS STORM PREDICTION CENTER NORMAN OK

325 PM CDT SUN MAY 22 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       NORTHERN ARKANSAS



EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 325 PM UNTIL

1000 PM CDT.



TORNADOES...HAIL TO 2 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 NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTHWEST OF

HARRISON ARKANSAS TO 15 MILES EAST SOUTHEAST OF JONESBORO

ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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 322...WW 323...WW

324...WW 325...WW 326...WW 327...WW 328...WW 329...



DISCUSSION...RAPID AIR MASS RECOVERY IS UNDERWAY THROUGH CNTRL AR TO

THE S OF INTENSIFYING STORMS NW OF LIT.  CURRENT LIT VWP INDICATES A

STRONGLY SHEARED ENVIRONMENT WITH 0-1 KM SRH OF 250 M2/S2 WHICH WILL

SERVE TO ENHANCE UPDRAFT ROTATION.  WHILE LARGE HAIL WILL BE THE

PRIMARY HAZARD WITH ANY SUPERCELLS THAT EVOLVE...TORNADOES WILL BE

POSSIBLE GIVEN THE STRONG LOW-LEVEL SHEAR AND MOIST/LOW LCL AIR

MASS.



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

SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE

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

500. MEAN STORM MOTION VECTOR 27030.





...MEAD

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