Alert archive / Alabama / Mesoscale Discussions in 2007

Mesoscale Discussion 243

March 1, 200749 counties in Alabama; 9 counties in Georgia; Clarke County, Greene County, Wayne County, Mississippi

The Storm Prediction Center issued this mesoscale discussion at Mar 1, 2007, 2:41 PM CST for 49 counties in Alabama; 9 counties in Georgia; Clarke County, Greene County, Wayne County, Mississippi. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued
Mar 1, 2007, 2:41 PM CST (20:41 UTC)
Expired
Mar 1, 2007, 4:15 PM CST
In force
94 min
Issued by
the Storm Prediction Center
All 61 counties

Autauga County, AL, Barbour County, AL, Bibb County, AL, Blount County, AL, Bullock County, AL, Butler County, AL, Calhoun County, AL, Chambers County, AL, Chilton County, AL, Choctaw County, AL, Clarke County, AL, Clay County, AL, Coffee County, AL, Conecuh County, AL, Coosa County, AL, Covington County, AL, Crenshaw County, AL, Cullman County, AL, Dale County, AL, Dallas County, AL, Elmore County, AL, Escambia County, AL, Fayette County, AL, Geneva County, AL, Greene County, AL, Hale County, AL, Henry County, AL, Jefferson County, AL, Lamar County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Monroe County, AL, Montgomery County, AL, Perry County, AL, Pickens County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Walker County, AL, Washington County, AL, Wilcox County, AL, Chattahoochee County, GA, Clay County, GA, Harris County, GA, Heard County, GA, Muscogee County, GA, Quitman County, GA, Randolph County, GA, Stewart County, GA, Troup County, GA, Clarke County, MS, Greene County, MS, Wayne County, MS

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 8.7 hours before the alert went out and 102 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 12:00Z on 2007-03-01Temperature 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 12:00Z on 2007-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 724 square meters per square second.1939587897117Sfc1 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
755 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
724 m²/s²
0-3 km storm-relative helicity
855 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.1

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 1, 12:12 AM CSTMesoscale DiscussionSPCColbert, Franklin, Lauderdale2 hr
Mar 1, 1:05 AM CSTSevere Thunderstorm WatchSPCColbert, Franklin, Lauderdale7 hr
Mar 1, 2:57 AM CSTMesoscale DiscussionSPCAutauga, Barbour, Bullock, Butler, Clarke, Coffee and 15 more2 hr
Mar 1, 4:18 AM CSTMesoscale DiscussionSPCColbert, Franklin, Lauderdale117 min
Mar 1, 6:54 AM CSTMesoscale DiscussionSPCBibb, Blount, Calhoun, Cherokee, Cleburne, Colbert and 24 more66 min
Mar 1, 7:28 AM CSTTornado Watch PDSSPCBaldwin, Bibb, Blount, Chilton, Choctaw, Clarke and 29 more12 hr
Mar 1, 8:58 AM CSTMesoscale DiscussionSPCBarbour, Bullock, Coffee, Covington, Crenshaw, Dale and 7 more2 hr
Mar 1, 9:47 AM CSTTornado Watch PDSSPCAutauga, Barbour, Bullock, Butler, Calhoun, Chambers and 26 more10 hr
Mar 1, 10:33 AM CSTMesoscale DiscussionSPCColbert, Franklin, Lamar, Lauderdale, Marion, Pickens117 min
Mar 1, 11:39 AM CSTMesoscale DiscussionSPCAutauga, Baldwin, Barbour, Bibb, Bullock, Butler and 35 more2 hr
Mar 1, 1:40 PM CSTMesoscale DiscussionSPCDale, Henry65 min
Mar 1, 5:22 PM CSTMesoscale DiscussionSPCAutauga, Baldwin, Barbour, Bibb, Blount, Bullock and 59 more83 min
Mar 1, 2:59 PM CSTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Brantley, Bryan, Bulloch and 23 more2 hr
Mar 1, 3:35 PM CSTTornado WatchSPCAppling, Atkinson, Bacon, Brantley, Bryan, Bulloch and 20 more9 hr
Mar 1, 5:23 AM CSTMesoscale DiscussionSPCBolivar, Issaquena, Washington97 min

Nearby

Mesoscale Discussions in Alabama, 2007Mesoscale Discussions in Georgia, 2007Mesoscale Discussions in Mississippi, 2007Every mesoscale discussion in 2007

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.