Alert archive / Alabama / Mesoscale Discussions in 2007

Mesoscale Discussion 12

January 5, 200753 counties in Alabama; 11 counties in Florida; 4 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Jan 5, 2007, 3:13 AM CST for 53 counties in Alabama; 11 counties in Florida; 4 counties in Georgia. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued
Jan 5, 2007, 3:13 AM CST (09:13 UTC)
Expired
Jan 5, 2007, 4:15 AM CST
In force
62 min
Issued by
the Storm Prediction Center
All 68 counties

Autauga County, AL, Baldwin County, AL, Barbour County, AL, Bibb County, AL, Blount County, AL, Bullock County, AL, Butler County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clarke County, AL, Clay County, AL, Cleburne 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, DeKalb County, AL, Elmore County, AL, Escambia County, AL, Etowah County, AL, Fayette County, AL, Geneva County, AL, Hale County, AL, Henry County, AL, Houston County, AL, Jefferson County, AL, Lamar County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Marion County, AL, Marshall County, AL, Monroe County, AL, Montgomery County, AL, Perry County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Walker County, AL, Wilcox County, AL, Winston County, AL, Bay County, FL, Calhoun County, FL, Escambia 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, Clay County, GA, Early County, GA, Quitman County, GA, Seminole County, GA

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 9.2 hours before the alert went out and 124 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 2007-01-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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, Birmingham, AL at 00:00Z on 2007-01-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 274 square meters per square second.19395878Sfc1 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
3 J/kg
Mixed-layer CIN
-172 J/kg
Mixed-layer LCL
609 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
274 m²/s²
0-3 km storm-relative helicity
274 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
Jan 4, 8:47 PM CSTTornado WatchSPCChoctaw, Mobile, Washington7 hr
Jan 5, 12:47 AM CSTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Blount, Bullock, Butler and 57 more28 min
Jan 5, 1:15 AM CSTTornado WatchSPCAutauga, Baldwin, Barbour, Bibb, Blount, Bullock and 48 more6 hr
Jan 5, 2:26 AM CSTMesoscale DiscussionSPCChoctaw, Mobile, Washington64 min
Jan 5, 5:46 AM CSTMesoscale DiscussionSPCAutauga, Barbour, Blount, Bullock, Butler, Calhoun and 28 more59 min
Jan 5, 7:21 AM CSTTornado WatchSPCBarbour, Bullock, Butler, Chambers, Clay, Coffee and 16 more8 hr
Jan 5, 9:02 AM CSTMesoscale DiscussionSPCBarbour, Bullock, Butler, Chambers, Clay, Cleburne and 17 more118 min
Jan 5, 11:31 AM CSTMesoscale DiscussionSPCBay, Calhoun, Franklin, Gadsden, Gulf, Jackson and 4 more119 min
Jan 5, 1:16 PM CSTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 17 more119 min
Jan 5, 1:49 PM CSTTornado WatchSPCAlachua, Baker, Bradford, Clay, Columbia, Dixie and 14 more7 hr
Jan 5, 5:35 PM CSTMesoscale DiscussionSPCAlachua, Baker, Bradford, Clay, Columbia, Duval and 4 more85 min
Jan 5, 11:06 AM CSTMesoscale DiscussionSPCBanks, Elbert, Forsyth, Franklin, Habersham, Hall and 6 more
Jan 5, 11:41 AM CSTTornado WatchSPCBurke, Columbia, Elbert, Franklin, Habersham, Hart and 5 more8 hr
Jan 5, 2:04 PM CSTMesoscale DiscussionSPCBurke, Columbia, Glascock, Jefferson, Lincoln, McDuffie and 3 more86 min
Jan 5, 3:26 PM CSTMesoscale DiscussionSPCAppling, Bryan, Bulloch, Candler, Chatham, Effingham and 13 more34 min
Jan 5, 3:35 PM CSTTornado WatchSPCBryan, Bulloch, Candler, Chatham, Effingham, Emanuel and 11 more7 hr

Nearby

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