Alert archive / Alabama / Mesoscale Discussions in 2004
Mesoscale Discussion 2220
The Storm Prediction Center issued this mesoscale discussion at Sep 16, 2004, 2:57 AM CDT for 39 counties in Alabama; 15 counties in Florida; 32 counties in Georgia. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 16, 2004, 2:57 AM CDT (07:57 UTC)
- Expired
- Sep 16, 2004, 5:00 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 86 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, Clarke 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, Greene County, AL, Hale County, AL, Henry County, AL, Houston 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, Pickens County, AL, Pike County, AL, Russell County, AL, Sumter County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Washington County, AL, Wilcox County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Colquitt County, GA, Crawford County, GA, Crisp County, GA, Decatur County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Harris County, GA, Lee County, GA, Macon County, GA, Marion County, GA, Miller County, GA, Mitchell County, GA, Muscogee County, GA, Peach County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Seminole County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taylor County, GA, Terrell County, GA, Thomas County, GA, Webster County, GA, Worth 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
Birmingham, AL (KBMX), launched 00:00Z, 8.0 hours before the alert went out and 217 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
- 95 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 648 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 15, 8:09 PM CDT | Mesoscale Discussion | SPC | Baldwin, Barbour, Bullock, Butler, Clarke, Coffee and 17 more | 2 hr |
| Sep 15, 10:35 PM CDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bibb, Bullock, Chambers, Chilton and 20 more | 115 min |
| Sep 16, 1:10 AM CDT | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 34 more | 9 hr |
| Sep 16, 7:03 AM CDT | Mesoscale Discussion | SPC | Autauga, Baldwin, Barbour, Bibb, Bullock, Butler and 32 more | 117 min |
| Sep 16, 9:09 AM CDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bullock, Butler, Calhoun, Chambers and 25 more | 66 min |
| Sep 16, 9:45 AM CDT | Tornado Watch | SPC | Autauga, Barbour, Bullock, Calhoun, Chambers, Cherokee and 17 more | 10 hr |
| Sep 16, 9:50 AM CDT | Tornado Watch | SPC | Coffee, Dale, Geneva, Henry, Houston, Pike | 10 hr |
| Sep 16, 1:16 PM CDT | Mesoscale Discussion | SPC | Barbour, Bullock, Calhoun, Chambers, Cherokee, Clay and 15 more | 119 min |
| Sep 16, 5:38 PM CDT | Mesoscale Discussion | SPC | Calhoun, Chambers, Cherokee, Clay, Cleburne, DeKalb and 6 more | 2 hr |
| Sep 16, 5:00 AM CDT | Tornado Watch | SPC | Columbia, Dixie, Gilchrist, Hamilton, Lafayette, Madison and 2 more | 5 hr |
| Sep 16, 9:58 AM CDT | Mesoscale Discussion | SPC | Bryan, Bulloch, Burke, Candler, Chatham, Columbia and 16 more | 2 hr |
| Sep 16, 11:20 AM CDT | Tornado Watch | SPC | Bryan, Bulloch, Burke, Candler, Chatham, Columbia and 19 more | 9 hr |
| Sep 16, 2:31 PM CDT | Mesoscale Discussion | SPC | Bulloch, Burke, Candler, Columbia, Effingham, Emanuel and 11 more | 119 min |
Nearby
Mesoscale Discussions in Alabama, 2004Mesoscale Discussions in Georgia, 2004Mesoscale Discussions in Florida, 2004Every mesoscale discussion in 2004
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.