Alert archive / Georgia / Mesoscale Discussions in 2008

Mesoscale Discussion 403

March 14, 200824 counties in Alabama; 52 counties in Georgia; Bradley County, Polk County, Tennessee

The Storm Prediction Center issued this mesoscale discussion at Mar 14, 2008, 7:11 PM CDT for 24 counties in Alabama; 52 counties in Georgia; Bradley County, Polk County, Tennessee. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued
Mar 14, 2008, 7:11 PM CDT (00:11 UTC)
Expired
Mar 14, 2008, 8:15 PM CDT
In force
64 min
Issued by
the Storm Prediction Center
All 78 counties

Autauga County, AL, Barbour County, AL, Blount County, AL, Bullock County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, DeKalb County, AL, Elmore County, AL, Etowah County, AL, Jackson County, AL, Lee County, AL, Macon County, AL, Marshall County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL, Bartow County, GA, Butts County, GA, Carroll County, GA, Catoosa County, GA, Chattahoochee County, GA, Chattooga County, GA, Cherokee County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Crawford County, GA, Dade County, GA, Dawson County, GA, DeKalb County, GA, Douglas County, GA, Fannin County, GA, Fayette County, GA, Floyd County, GA, Forsyth County, GA, Fulton County, GA, Gilmer County, GA, Gordon County, GA, Gwinnett County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Jasper County, GA, Lamar County, GA, Lumpkin County, GA, Marion County, GA, Meriwether County, GA, Monroe County, GA, Murray County, GA, Muscogee County, GA, Newton County, GA, Paulding County, GA, Pickens County, GA, Pike County, GA, Polk County, GA, Quitman County, GA, Rockdale County, GA, Schley County, GA, Spalding County, GA, Stewart County, GA, Talbot County, GA, Taylor County, GA, Troup County, GA, Upson County, GA, Walker County, GA, Webster County, GA, Whitfield County, GA, Bradley County, TN, Polk County, TN

The radar

The Atlanta radar (KFFC), 56 km from the middle of the area, began a volume at 00:11 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.2 hours before the alert went out and 62 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, Peachtre/Fal Fld, GA at 00:00Z on 2008-03-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 733 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, Peachtre/Fal Fld, GA at 00:00Z on 2008-03-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 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
733 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
984 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
212 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.6

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 15, 12:39 AM CDTMesoscale DiscussionSPCBlount, Calhoun, Cherokee, Clay, Cleburne, Colbert and 22 more66 min
Mar 15, 12:56 AM CDTSevere Thunderstorm WatchSPCAutauga, Bibb, Blount, Calhoun, Chambers, Cherokee and 38 more6 hr
Mar 15, 2:57 AM CDTMesoscale DiscussionSPCCherokee, Cleburne, Randolph93 min
Mar 15, 4:30 AM CDTMesoscale DiscussionSPCColbert, Franklin, Marion90 min
Mar 15, 6:58 AM CDTMesoscale DiscussionSPCBlount, Cherokee, Colbert, Cullman, DeKalb, Etowah and 11 more62 min
Mar 15, 7:02 AM CDTSevere Thunderstorm WatchSPCBlount, Calhoun, Cherokee, Cleburne, Colbert, Cullman and 16 more4 hr
Mar 15, 9:38 AM CDTMesoscale DiscussionSPCCalhoun, Cherokee, Cleburne, DeKalb, Etowah, Randolph and 1 more67 min
Mar 15, 10:02 AM CDTTornado WatchSPCAutauga, Bullock, Calhoun, Chambers, Cherokee, Chilton and 15 more8 hr
Mar 15, 10:23 AM CDTMesoscale DiscussionSPCColbert67 min
Mar 15, 12:22 PM CDTMesoscale DiscussionSPCBullock, Calhoun, Chambers, Clay, Cleburne, Coosa and 8 more83 min
Mar 15, 1:21 PM CDTMesoscale DiscussionSPCCalhoun, Chambers, Clay, Cleburne, Randolph84 min
Mar 15, 2:08 PM CDTMesoscale DiscussionSPCCleburne67 min
Mar 15, 2:39 PM CDTMesoscale DiscussionSPCBibb, Blount, Cullman, DeKalb, Fayette, Franklin and 12 more2 hr
Mar 14, 10:03 PM CDTMesoscale DiscussionSPCBaldwin, Butts, Clayton, Cobb, DeKalb, Douglas and 26 more57 min
Mar 15, 3:28 AM CDTSevere Thunderstorm WatchSPCBanks, Barrow, Bartow, Butts, Carroll, Chattooga and 42 more3 hr
Mar 15, 6:18 AM CDTMesoscale DiscussionSPCBurke, Columbia, Glascock, Hancock, Jefferson, Jenkins and 7 more117 min
Mar 15, 3:36 PM CDTTornado Watch PDSSPCBaldwin, Barrow, Bibb, Bleckley, Bryan, Bulloch and 73 more8 hr
Mar 15, 4:56 PM CDTMesoscale DiscussionSPCAppling, Atkinson, Bacon, Ben Hill, Berrien, Bleckley and 40 more64 min
Mar 15, 5:17 PM CDTMesoscale DiscussionSPCBanks, Bartow, Cherokee, Cobb, Dawson, Floyd and 14 more28 min
Mar 15, 6:41 PM CDTMesoscale DiscussionSPCBaldwin, Bibb, Bleckley, Bulloch, Burke, Butts and 52 more64 min
Mar 14, 11:55 PM CDTSevere Thunderstorm WatchSPCCarroll, Chester, Crockett, Decatur, Dyer, Fayette and 14 more7 hr
Mar 15, 2:12 AM CDTMesoscale DiscussionSPCChester, Crockett, Dyer, Fayette, Gibson, Hardeman and 6 more93 min

Nearby

Mesoscale Discussions in Georgia, 2008Mesoscale Discussions in Alabama, 2008Mesoscale Discussions in Tennessee, 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; radar from the NEXRAD Level II archive.