Alert archive / Georgia / Mesoscale Discussions in 2011
Mesoscale Discussion 2130
The Storm Prediction Center issued this mesoscale discussion at Sep 5, 2011, 7:24 AM CDT for 26 counties in Alabama; 48 counties in Georgia. It was in force for 66 min.
The area
The outline as issued.
The facts
- Issued
- Sep 5, 2011, 7:24 AM CDT (12:24 UTC)
- Expired
- Sep 5, 2011, 8:30 AM CDT
- In force
- 66 min
- Issued by
- the Storm Prediction Center
All 74 counties
Autauga County, AL, Barbour County, AL, Bibb County, AL, Bullock County, AL, Butler County, AL, Calhoun County, AL, Chambers County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Crenshaw County, AL, Dale County, AL, Dallas County, AL, Elmore County, AL, Henry County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Montgomery County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, Talladega County, AL, Tallapoosa County, AL, Baldwin County, GA, Barrow County, GA, Bibb County, GA, Butts County, GA, Carroll County, GA, Chattahoochee County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, Crawford County, GA, DeKalb County, GA, Douglas County, GA, Fayette County, GA, Fulton County, GA, Greene County, GA, Gwinnett County, GA, Hancock County, GA, Haralson County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Jasper County, GA, Jones County, GA, Lamar County, GA, Macon County, GA, Marion County, GA, Meriwether County, GA, Monroe County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Paulding County, GA, Peach County, GA, Pike County, GA, Putnam 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, Twiggs County, GA, Upson County, GA, Walton 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 0.4 hours before the alert went out and 114 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.
- Mixed-layer CAPE
- 279 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 471 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 167 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 9:42 PM CDT | Tornado Watch | SPC | Autauga, Baldwin, Butler, Choctaw, Clarke, Conecuh and 16 more | 9 hr |
| Sep 4, 11:35 PM CDT | Mesoscale Discussion | SPC | Baldwin, Choctaw, Clarke, Conecuh, Covington, Escambia and 6 more | 115 min |
| Sep 5, 4:26 AM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 41 more | 94 min |
| Sep 5, 5:35 AM CDT | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bibb, Blount, Bullock and 50 more | 10 hr |
| Sep 5, 11:01 AM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Barbour, Bibb, Blount, Bullock and 41 more | 29 min |
| Sep 5, 3:04 PM CDT | Severe Thunderstorm Watch | SPC | Coffee, Dale, Geneva, Henry, Houston | 6 hr |
| Sep 5, 3:15 PM CDT | Mesoscale Discussion | SPC | Barbour, Bullock, Chambers, Coffee, Dale, Elmore and 9 more | 30 min |
| Sep 5, 3:49 PM CDT | Tornado Watch | SPC | Autauga, Barbour, Bullock, Calhoun, Chambers, Chilton and 16 more | 4 hr |
| Sep 5, 6:37 PM CDT | Mesoscale Discussion | SPC | Barbour, Bullock, Calhoun, Chambers, Clay, Cleburne and 9 more | 113 min |
| Sep 5, 11:10 AM CDT | Tornado Watch | SPC | Bartow, Bibb, Butts, Carroll, Chattahoochee, Chattooga and 46 more | 4 hr |
| Sep 5, 12:23 PM CDT | Mesoscale Discussion | SPC | Baldwin, Burke, Columbia, Elbert, Emanuel, Glascock and 17 more | 67 min |
| Sep 5, 2:05 PM CDT | Mesoscale Discussion | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 75 more | 55 min |
| Sep 5, 2:42 PM CDT | Tornado Watch | SPC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 81 more | 7 hr |
| Sep 5, 4:48 PM CDT | Mesoscale Discussion | SPC | Appling, Bacon, Brantley, Bryan, Bulloch, Camden and 19 more | 87 min |
| Sep 5, 5:12 PM CDT | Severe Thunderstorm Watch | SPC | Burke, Richmond | 4 hr |
Nearby
Mesoscale Discussions in Georgia, 2011Mesoscale Discussions in Alabama, 2011Every mesoscale discussion in 2011
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.