Alert archive / Georgia / Severe Thunderstorm Watches in 2005
Severe Thunderstorm Watch 29
The Storm Prediction Center issued this severe thunderstorm watch at Feb 21, 2005, 9:40 PM CST for 12 counties in Alabama; 40 counties in Georgia. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 21, 2005, 9:40 PM CST (03:40 UTC)
- Expired
- Feb 22, 2005, 4:00 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 52 counties
Autauga County, AL, Bibb County, AL, Bullock County, AL, Chambers County, AL, Chilton County, AL, Coosa County, AL, Elmore County, AL, Lee County, AL, Macon County, AL, Montgomery County, AL, Russell County, AL, Tallapoosa County, AL, Baldwin County, GA, Bibb County, GA, Bleckley County, GA, Chattahoochee County, GA, Crawford County, GA, Crisp County, GA, Dodge County, GA, Dooly County, GA, Evans County, GA, Harris County, GA, Houston County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Laurens County, GA, Macon County, GA, Marion County, GA, Meriwether County, GA, Monroe County, GA, Montgomery County, GA, Muscogee County, GA, Peach County, GA, Pike County, GA, Pulaski County, GA, Schley County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Tattnall County, GA, Taylor County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Troup County, GA, Twiggs County, GA, Upson County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Wilkinson County, GA
The radar
The Atlanta radar (KFFC), 72 km from the middle of the area, began a volume at 03:40 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.
Warnings issued inside it
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 9:44 PM CST | Severe Thunderstorm Warning | FFC | Troup | 46 min |
| Feb 21, 10:17 PM CST | Severe Thunderstorm Warning | FFC | Harris | 43 min |
| Feb 21, 10:19 PM CST | Severe Thunderstorm Warning | BMX | Chambers | 56 min |
| Feb 21, 10:41 PM CST | Severe Thunderstorm Warning | FFC | Meriwether, Pike, Spalding | 34 min |
| Feb 21, 10:46 PM CST | Severe Thunderstorm Warning | FFC | Talbot | 44 min |
| Feb 21, 10:48 PM CST | Severe Thunderstorm Warning | FFC | Troup | 27 min |
| Feb 21, 11:11 PM CST | Severe Thunderstorm Warning | FFC | Harris | 34 min |
| Feb 21, 11:15 PM CST | Severe Thunderstorm Warning | BMX | Chambers | 45 min |
| Feb 21, 11:29 PM CST | Severe Thunderstorm Warning | FFC | Talbot | 46 min |
| Feb 22, 12:10 AM CST | Severe Thunderstorm Warning | FFC | Taylor | 50 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 3.7 hours before the alert went out and 73 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
- 904 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1003 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 233 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 9.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 6:05 PM CST | Severe Thunderstorm Watch | SPC | Blount, Calhoun, Cherokee, Cleburne, Cullman, DeKalb and 4 more | 7 hr |
| Feb 21, 9:43 PM CST | Mesoscale Discussion | SPC | Autauga, Barbour, Bibb, Bullock, Chambers, Chilton and 14 more | 92 min |
| Feb 22, 12:39 PM CST | Mesoscale Discussion | SPC | Autauga, Barbour, Bibb, Bullock, Chambers, Chilton and 14 more | 2 hr |
| Feb 22, 2:40 PM CST | Mesoscale Discussion | SPC | Choctaw, Marengo | 2 hr |
Nearby
Severe Thunderstorm Watches in Georgia, 2005Severe Thunderstorm Watches in Alabama, 2005Every severe thunderstorm watch in 2005
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.