

000 

WWUS20 KWNS 301708

SEL5

SPC WW 301708

ALZ000-MSZ000-010000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 465

NWS STORM PREDICTION CENTER NORMAN OK

1210 PM CDT SAT JUN 30 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       CENTRAL AND NORTHERN ALABAMA

       NORTHERN AND EASTERN MISSISSIPPI



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 1210 PM UNTIL

700 PM CDT.



HAIL TO 1 INCH 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 95

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 60 MILES SOUTH

SOUTHWEST OF OXFORD MISSISSIPPI TO 25 MILES EAST OF ANNISTON

ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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.



DISCUSSION...SCTD PULSE STORMS WITH A POTENTIAL FOR WET MICROBURSTS

AND HAIL EXPECTED IN WW THIS AFTERNOON...WHERE STEEP LOW LVL LAPSE

RATES ARE DEVELOPING IN ZONE OF WEAK FLOW/HI PWS.  STORMS SHOULD

TEND TO CLUSTER...WITH THE ACTIVITY TENDING TO MOVE/DEVELOP SLOWLY

ESE WITH TIME.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION

VECTOR 28010.





...CORFIDI

