

626 

WWUS20 KWNS 100056

SEL0

SPC WW 100056

ARZ000-MOZ000-100500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 360

NWS STORM PREDICTION CENTER NORMAN OK

755 PM CDT TUE JUN 9 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHEAST ARKANSAS

       BOOTHEEL OF MISSOURI



EFFECTIVE THIS TUESDAY NIGHT FROM 755 PM UNTIL MIDNIGHT CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 35

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES WEST OF

WALNUT RIDGE ARKANSAS TO 65 MILES EAST NORTHEAST OF JONESBORO

ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...CONTINUE...WW 356...WW 357...WW

358...WW 359...



DISCUSSION...AN INTENSE SUPERCELL OVER SOUTHERN MO WILL TRACK

SOUTHEASTWARD INTO NORTHEAST AR DURING THE NEXT FEW HOURS...ALONG

WITH OTHER ACTIVITY MOVING INTO THE MO BOOTHEEL.  AIRMASS REMAINS

VERY UNSTABLE...WITH SUFFICIENT VERTICAL SHEAR FOR THE RISK OF LARGE

HAIL AND DAMAGING WINDS.



AVIATION...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 31025.





...HART

