Tornado Watch 33

Issued

Feb 24, 2007, 7:52 PM CST (01:52 UTC)

Expired

Feb 25, 2007, 3:00 AM CST

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

60 kt

The Columbus AFB radar (KGWX), 41 km from the middle of the area, began a volume at 01:53 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

40%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

70%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

20%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 202Feb 24, 6:44 PM CST
• Mesoscale Discussion 204Feb 24, 10:11 PM CST
• Mesoscale Discussion 207Feb 25, 1:29 AM CST

000
WWUS20 KWNS 250155
SEL3  
SPC WW 250155
ALZ000-LAZ000-MSZ000-TNZ000-250900-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 33
NWS STORM PREDICTION CENTER NORMAN OK
755 PM CST SAT FEB 24 2007

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       CENTRAL AND NORTHERN ALABAMA
       NORTHEAST LOUISIANA
       MUCH OF MISSISSIPPI
       A SMALL PART OF SOUTHERN MIDDLE TENNESSEE

EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 755 PM
UNTIL 300 AM CST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 100 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF HUNTSVILLE
ALABAMA TO 45 MILES WEST SOUTHWEST OF PINE BELT MISSISSIPPI.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).

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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 32. WATCH NUMBER 32 WILL NOT BE IN EFFECT AFTER 755
PM CST. 

DISCUSSION...SQLN WITH EMBEDDED SUPERCELLS SHOULD CONTINUE EWD AS
INDIVIDUAL STORMS MOVE NE AT 40-50 KTS BENEATH 70+ KT MID LEVEL SWLY
JET.  BEST CHANCE FOR SEMI-DISCRETE ACTIVITY WITH ASSOCIATED TORNADO
POTENTIAL IN THE NEXT 3-4 HRS SHOULD BE OVER SW/CNTRL MS...WHERE
GREATEST BOUNDARY LAYER MOISTURE IS PRESENT ON SRN END OF LINE.  NRN
PART OF SQLN MAY TRANSITION INTO MORE OF A FORCED ASCENT STRUCTURE
IN THE NEXT FEW HRS...WHERE EMBEDDED LEWPS MAY YIELD HIGH WIND AND
ISOLATED SPIN-UP TORNADOES.

AVIATION...TORNADOES AND 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 450.
MEAN STORM MOTION VECTOR 23050.


...CORFIDI

Tornado Watches in Mississippi, 2007Tornado 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.