

000 

WWUS20 KWNS 132304

SEL5

SPC WW 132304

ALZ000-140400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 25

NWS STORM PREDICTION CENTER NORMAN OK

505 PM CST TUE FEB 13 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL ALABAMA



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 505 PM UNTIL

1000 PM CST.



TORNADOES...HAIL TO 2.5 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 70 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTHWEST OF

CENTREVILLE ALABAMA TO 15 MILES NORTH NORTHEAST OF AUBURN

ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 22...WW 23...WW 24...



DISCUSSION...SUPERCELLS BECOMING ENHANCED OVER WEST CENTRAL AL ATTM

AS STORMS INTERACT WITH NW-SE ORIENTED SURFACE BOUNDARY LEFT OVER

FROM STORMS EARLIER IN THE DAY.  SHEAR REMAINS QUITE STRONG AND

SHOULD SUPPORT ISOLATED TORNADOES FROM LONGER-LIVED SUPERCELLS INTO

CENTRAL AL.  ISOLATED VERY LARGE HAIL CAN ALSO BE EXPECTED WITH

CELLS ALONG SRN PORTION OF THIS BROKEN LINE OF STORMS.  ACTIVITY IS

BEING DRIVEN BY VERY STRONG ASCENT AHEAD OF UPPER LOW NOW MOVING

INTO THE TN VALLEY...WHICH SHOULD FORCE SEVERE THREAT EWD ACROSS

CENTRAL AL THROUGH THE EVENING.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 27030.





...EVANS



000 

WWUS20 KWNS 132304

SEL5

SPC WW 132304

ALZ000-140400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 25...RESENT

NWS STORM PREDICTION CENTER NORMAN OK

505 PM CST TUE FEB 13 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       CENTRAL ALABAMA



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 505 PM UNTIL

1000 PM CST.



TORNADOES...HAIL TO 2.5 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 70 STATUTE

MILES NORTH AND SOUTH OF A LINE FROM 25 MILES NORTHWEST OF

CENTREVILLE ALABAMA TO 15 MILES NORTH NORTHEAST OF AUBURN

ALABAMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 22...WW 23...WW 24...



DISCUSSION...SUPERCELLS BECOMING ENHANCED OVER WEST CENTRAL AL ATTM

AS STORMS INTERACT WITH NW-SE ORIENTED SURFACE BOUNDARY LEFT OVER

FROM STORMS EARLIER IN THE DAY.  SHEAR REMAINS QUITE STRONG AND

SHOULD SUPPORT ISOLATED TORNADOES FROM LONGER-LIVED SUPERCELLS INTO

CENTRAL AL.  ISOLATED VERY LARGE HAIL CAN ALSO BE EXPECTED WITH

CELLS ALONG SRN PORTION OF THIS BROKEN LINE OF STORMS.  ACTIVITY IS

BEING DRIVEN BY VERY STRONG ASCENT AHEAD OF UPPER LOW NOW MOVING

INTO THE TN VALLEY...WHICH SHOULD FORCE SEVERE THREAT EWD ACROSS

CENTRAL AL THROUGH THE EVENING.



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

SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE

WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO

500. MEAN STORM MOTION VECTOR 27030.





...EVANS

