Alert archive / Louisiana / Tornado Watches in 2008

Tornado Watch 44

February 6, 20084 counties in Alabama; 22 parishes in Louisiana; 13 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Feb 6, 2008, 1:23 AM CST for 4 counties in Alabama; 22 parishes in Louisiana; 13 counties in Mississippi. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Feb 6, 2008, 1:23 AM CST (07:23 UTC)
Expired
Feb 6, 2008, 7:00 AM CST
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 39 counties

Choctaw County, AL, Clarke County, AL, Mobile County, AL, Washington County, AL, Ascension Parish, LA, Assumption Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Iberville Parish, LA, Jefferson Parish, LA, Lafourche Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Pointe Coupee Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Terrebonne Parish, LA, Washington Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Amite County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Stone County, MS, Walthall County, MS, Wayne County, MS, Wilkinson County, MS

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
50%
One or more EF2 to EF5 tornadoes
50%
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
30%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Feb 6, 1:30 AM CSTTornado WarningLIXSaint Tammany, Washington50 min
Feb 6, 2:05 AM CSTTornado WarningLIXOrleans25 min
Feb 6, 3:12 AM CSTSevere Thunderstorm WarningLIXHancock33 min
Feb 6, 3:25 AM CSTSevere Thunderstorm WarningLIXHarrison65 min
Feb 6, 3:34 AM CSTSevere Thunderstorm WarningMOBChoctaw41 min
Feb 6, 5:30 AM CSTSevere Thunderstorm WarningMOBBaldwin, Clarke, Conecuh, Escambia, Mobile, Monroe and 1 more60 min
Feb 6, 6:05 AM CSTSevere Thunderstorm WarningMOBBaldwin, Mobile55 min
Feb 6, 6:30 AM CSTSevere Thunderstorm WarningMOBBaldwin, Butler, Conecuh, Covington, Crenshaw, Escambia and 2 more60 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 7.4 hours before the alert went out and 71 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Slidell Radar S, LA at 00:00Z on 2008-02-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1219 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2008-02-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 203 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1219 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
647 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
203 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
1.3
Supercell composite
6.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 5, 9:39 PM CSTMesoscale DiscussionSPCBlount, Colbert, Cullman, Fayette, Franklin, Jackson and 10 more96 min
Feb 5, 10:01 PM CSTTornado WatchSPCBibb, Blount, Colbert, Cullman, DeKalb, Etowah and 23 more8 hr
Feb 6, 2:41 AM CSTMesoscale DiscussionSPCBibb, Blount, Calhoun, Cherokee, Colbert, Cullman and 25 more2 hr
Feb 6, 4:06 AM CSTTornado WatchSPCAutauga, Bibb, Blount, Calhoun, Cherokee, Chilton and 24 more6 hr
Feb 6, 4:27 AM CSTMesoscale DiscussionSPCBaldwin, Butler, Clarke, Coffee, Conecuh, Covington and 7 more2 hr
Feb 6, 5:04 AM CSTTornado WatchSPCBaldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more5 hr
Feb 6, 6:10 AM CSTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Bullock, Butler, Calhoun and 34 more2 hr
Feb 6, 7:06 AM CSTTornado WatchSPCBarbour, Bullock, Chambers, Coffee, Dale, Geneva and 6 more6 hr
Feb 6, 10:20 AM CSTMesoscale DiscussionSPCBarbour, Bullock, Coffee, Dale, Geneva, Henry and 3 more85 min
Feb 5, 8:07 PM CSTMesoscale DiscussionSPCEast Carroll, Morehouse, West Carroll83 min
Feb 6, 1:02 AM CSTMesoscale DiscussionSPCAscension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 18 more58 min

Nearby

Tornado Watches in Louisiana, 2008Tornado Watches in Mississippi, 2008Tornado Watches in Alabama, 2008Every tornado watch in 2008

Sources

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.