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865 

WWUS20 KWNS 152127

SEL9

SPC WW 152127

ARZ000-160500-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 179

NWS STORM PREDICTION CENTER NORMAN OK

425 PM CDT SUN APR 15 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL AND EASTERN ARKANSAS



EFFECTIVE THIS SUNDAY AFTERNOON FROM 425 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 75 STATUTE

MILES EAST AND WEST OF A LINE FROM 45 MILES EAST NORTHEAST OF

FLIPPIN ARKANSAS TO 15 MILES SOUTH SOUTHEAST OF EL DORADO

ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 177...WW 178...



DISCUSSION...PRE-FRONTAL BAND OF TSTMS IS IN THE PROCESS OF SLOWLY

INTENSIFYING THIS AFTERNOON AS IT ENCOUNTERS A MOIST...DESTABILIZING

AIR MASS WHERE MLCAPE HAS INCREASED TO AROUND 1000 J/KG.  CURRENT

LITTLE ROCK VAD INDICATES THE PRESENCE OF STRONG WIND FIELD WITH 0-1

KM SRH OF 250-300 M2/S2.  AS SUCH...THE POTENTIAL WILL EXIST FOR

EMBEDDED BOWING AND SUPERCELL STRUCTURES WITH AN ATTENDANT RISK FOR

DAMAGING WINDS AND A COUPLE 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 25035.





...MEAD

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