Tornado Watch 25

Issued

Feb 13, 2007, 5:18 PM CST (23:18 UTC)

Expired

Feb 13, 2007, 9:18 PM CST

In force

4 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

60 kt

The Birmingham radar (KBMX), 11 km from the middle of the area, began a volume at 23:18 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Two or more tornadoes

60%

One or more EF2 to EF5 tornadoes

40%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

50%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 157Feb 13, 5:09 PM CST
• Mesoscale Discussion 162Feb 13, 7:21 PM CST

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

Tornado Watches in Alabama, 2007Every tornado watch in 2007

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.