Alert archive / Alabama / Mesoscale Discussions in 2008

Mesoscale Discussion 339

March 4, 200829 counties in Alabama; 12 counties in Florida; 25 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Mar 4, 2008, 2:30 AM CST for 29 counties in Alabama; 12 counties in Florida; 25 counties in Georgia. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued
Mar 4, 2008, 2:30 AM CST (08:30 UTC)
Expired
Mar 4, 2008, 4:00 AM CST
In force
90 min
Issued by
the Storm Prediction Center
All 66 counties

Autauga County, AL, Baldwin County, AL, Barbour County, AL, Bullock County, AL, Butler County, AL, Chambers County, AL, Chilton County, AL, Coffee County, AL, Conecuh County, AL, Coosa County, AL, Covington County, AL, Crenshaw County, AL, Dale County, AL, Dallas County, AL, Elmore County, AL, Escambia County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Mobile County, AL, Monroe County, AL, Montgomery County, AL, Pike County, AL, Russell County, AL, Tallapoosa County, AL, Wilcox County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Harris County, GA, Lee County, GA, Macon County, GA, Marion County, GA, Miller County, GA, Mitchell County, GA, Muscogee County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Seminole County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taylor County, GA, Terrell County, GA, Webster County, GA

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 8.5 hours before the alert went out and 202 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, Birmingham, AL at 00:00Z on 2008-03-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Birmingham, AL at 00:00Z on 2008-03-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1699 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
273 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 3, 8:59 PM CSTMesoscale DiscussionSPCBaldwin, Butler, Choctaw, Clarke, Conecuh, Crenshaw and 10 more61 min
Mar 3, 9:56 PM CSTTornado WatchSPCBaldwin, Bibb, Butler, Choctaw, Clarke, Conecuh and 16 more7 hr
Mar 4, 1:09 AM CSTMesoscale DiscussionSPCBlount, Cherokee, Cullman, DeKalb, Etowah, Fayette and 10 more66 min
Mar 4, 1:25 AM CSTTornado WatchSPCAutauga, Barbour, Blount, Bullock, Calhoun, Chambers and 28 more8 hr
Mar 4, 3:21 AM CSTTornado WatchSPCBaldwin, Butler, Coffee, Conecuh, Covington, Crenshaw and 6 more9 hr
Mar 4, 4:55 AM CSTMesoscale DiscussionSPCBullock, Chambers, Clay, Cleburne, Coosa, Elmore and 6 more95 min
Mar 4, 10:17 AM CSTMesoscale DiscussionSPCCalhoun, Chambers, Cherokee, Clay, Cleburne, DeKalb and 4 more118 min
Mar 4, 10:56 AM CSTMesoscale DiscussionSPCBaker, Columbia, Gadsden, Hamilton, Jackson, Jefferson and 4 more2 hr
Mar 4, 11:04 AM CSTTornado WatchSPCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 96 more8 hr
Mar 4, 1:30 PM CSTMesoscale DiscussionSPCBaldwin, Banks, Barrow, Bibb, Butts, Clarke and 40 more90 min
Mar 4, 3:31 PM CSTTornado WatchSPCLincoln8 hr
Mar 4, 4:48 PM CSTMesoscale DiscussionSPCBryan, Bulloch, Burke, Chatham, Effingham, Liberty and 2 more57 min
Mar 4, 5:27 PM CSTTornado WatchSPCBryan, Bulloch, Burke, Candler, Chatham, Columbia and 11 more7 hr

Nearby

Mesoscale Discussions in Alabama, 2008Mesoscale Discussions in Georgia, 2008Mesoscale Discussions in Florida, 2008Every mesoscale discussion 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.