

046 

WWUS20 KWNS 100246

SEL1

SPC WW 100246

ARZ000-MOZ000-OKZ000-100900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 361

NWS STORM PREDICTION CENTER NORMAN OK

945 PM CDT TUE JUN 9 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN ARKANSAS

       SOUTHERN MISSOURI

       NORTHEAST OKLAHOMA



EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 945 PM

UNTIL 400 AM 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 55

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 15 MILES WEST OF

GROVE OKLAHOMA TO 35 MILES EAST SOUTHEAST OF WEST PLAINS

MISSOURI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).



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 357...WW 358...WW

359...WW 360...



DISCUSSION...A CLUSTER OF SEVERE STORMS OVER NORTHEAST OK AND

SOUTHWEST MO WILL LIKELY PERSIST FOR SEVERAL MORE HOURS AND TRACK

EAST-SOUTHEASTWARD ALONG OLD OUTFLOW BOUNDARY INTO NORTHERN AR.

AMPLE MOISTURE/INSTABILITY AND INCREASING LOW LEVEL WINDS WILL

MAINTAIN A RISK OF ISOLATED SEVERE STORMS CAPABLE OF 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 30025.





...HART

