Alert archive / Alabama / Mesoscale Discussions in 2007

Mesoscale Discussion 238

March 1, 20074 states

The Storm Prediction Center issued this mesoscale discussion at Mar 1, 2007, 11:39 AM CST for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Mar 1, 2007, 11:39 AM CST (17:39 UTC)
Expired
Mar 1, 2007, 1:45 PM CST
In force
2 hr
Issued by
the Storm Prediction Center
All 70 counties

Autauga County, AL, Baldwin County, AL, Barbour County, AL, Bibb County, AL, Bullock County, AL, Butler 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, Dale County, AL, Dallas County, AL, Elmore County, AL, Escambia County, AL, Geneva County, AL, Hale County, AL, Henry County, AL, Houston County, AL, Jefferson County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Mobile County, AL, Monroe County, AL, Montgomery County, AL, Perry County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, Talladega County, AL, Tallapoosa County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Holmes County, FL, Okaloosa County, FL, Santa Rosa County, FL, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Coweta County, GA, Early County, GA, Fayette County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Marion County, GA, Meriwether County, GA, Miller County, GA, Muscogee County, GA, Pike County, GA, Quitman County, GA, Randolph County, GA, Spalding County, GA, Stewart County, GA, Talbot County, GA, Troup County, GA, Upson County, GA, Webster County, GA, George County, MS, Greene County, MS, Perry County, MS

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 5.7 hours before the alert went out and 168 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, 1:40 PM CSTMesoscale DiscussionSPCDale, Henry65 min
Mar 1, 2:41 PM CSTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Blount, Bullock, Butler and 43 more94 min
Mar 1, 5:22 PM CSTMesoscale DiscussionSPCAutauga, Baldwin, Barbour, Bibb, Blount, Bullock and 59 more83 min
Mar 1, 2:59 PM CSTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Duval and 12 more2 hr
Mar 1, 3:35 PM CSTTornado WatchSPCAlachua, Baker, Bradford, Brevard, Clay, Columbia and 23 more9 hr
Mar 1, 5:23 AM CSTMesoscale DiscussionSPCBolivar, Issaquena, Washington97 min

Nearby

Mesoscale Discussions in Alabama, 2007Mesoscale Discussions in Georgia, 2007Mesoscale Discussions in Florida, 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.