Tornado Watch 67

Issued

Mar 26, 2009, 1:36 AM CDT (06:36 UTC)

Expired

Mar 26, 2009, 11:00 AM CDT

In force

9 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

70 kt

The Mobile radar (KMOB), 149 km from the middle of the area, began a volume at 06:38 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

60%

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

20%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 267Mar 25, 11:38 PM CDT
• Mesoscale Discussion 268Mar 26, 1:25 AM CDT
• Mesoscale Discussion 269Mar 26, 3:40 AM CDT
• Mesoscale Discussion 270Mar 26, 6:01 AM CDT

176 
WWUS20 KWNS 260639
SEL7  
SPC WW 260639
ALZ000-FLZ000-LAZ000-MSZ000-CWZ000-261400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 67
NWS STORM PREDICTION CENTER NORMAN OK
140 AM CDT THU MAR 26 2009

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

       MUCH OF CENTRAL AND SOUTHERN ALABAMA
       PARTS OF WESTERN FLORIDA PANHANDLE
       PARTS OF SOUTHEASTERN LOUISIANA
       PARTS OF SOUTHEASTERN MISSISSIPPI
       COASTAL WATERS

EFFECTIVE THIS THURSDAY MORNING FROM 140 AM UNTIL 900 AM CDT.

TORNADOES...HAIL TO 2 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 90 STATUTE
MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH OF BIRMINGHAM
ALABAMA TO 5 MILES SOUTH SOUTHWEST OF BOOTHVILLE LOUISIANA.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU7).

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 66...

DISCUSSION...WELL ORGANIZED SQUALL LINE ECENTRAL MS SSWWD TO
SCENTRAL LA WILL CONTINUE EWD WITH POTENTIAL FOR MORE DISCRETE
SUPERCELL DEVELOPMENT IN WARM SECTOR IN ADVANCE OF LINE. WITH LOW
LEVEL JET INCREASING TO 60KT COUPLED WITH INCREASING
MOISTURE/INSTABILITY NWD INTO AL...THREAT FOR EMBEDDED TORNADIC
SUPERCELLS IN SQUALL LINE WILL CONTINUE.  IN ADDITION WIND DAMAGE
WILL BE MORE COMMON WITH THE LINE AS IT MOVES EWD ACROSS WATCH
REMAINDER OF OVERNIGHT HOURS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 24040.


...HALES

Tornado Watches in Alabama, 2009Tornado Watches in Mississippi, 2009Tornado Watches in Louisiana, 2009Every tornado watch in 2009

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.