

771 

WWUS20 KWNS 151948

SEL2

SPC WW 151948

ARZ000-MOZ000-TNZ000-152300-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 422

NWS STORM PREDICTION CENTER NORMAN OK

250 PM CDT MON JUN 15 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       PARTS OF NORTHEAST ARKANSAS

       SMALL PART OF SOUTHEAST MISSOURI

       PARTS OF WESTERN AND MIDDLE TENNESSEE



EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 250 PM UNTIL 600

PM CDT.



TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND

GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE

AREAS.



THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 45 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTHWEST OF WALNUT

RIDGE ARKANSAS TO 100 MILES EAST OF JACKSON TENNESSEE.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU2).



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 419...WW 420...WW 421...



DISCUSSION...INTENSE THUNDERSTORMS HAVE DEVELOP ALONG E/W BOUNDARY

ACROSS THE WATCH AREA.  WITH MLCAPES AOA 3500 J/KG COMBINED WITH

30-40KT EFFECTIVE SHEAR...SUPERCELLS ALONG WITH POTENTIAL TORNADOES

ARE EXPECTED VICINITY BOUNDARY,



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

600. MEAN STORM MOTION VECTOR 29025.





...HALES

