Alert archive / Georgia / Mesoscale Discussions in 2008
Mesoscale Discussion 2439
The Storm Prediction Center issued this mesoscale discussion at Dec 10, 2008, 10:45 AM CST for 11 counties in Alabama; 13 counties in Florida; 68 counties in Georgia. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Dec 10, 2008, 10:45 AM CST (16:45 UTC)
- Expired
- Dec 10, 2008, 12:45 PM CST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 92 counties
Barbour County, AL, Bullock County, AL, Coffee County, AL, Covington County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Lee County, AL, Pike County, AL, Russell County, AL, Bay County, FL, Calhoun County, FL, Escambia County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Leon County, FL, Liberty County, FL, Okaloosa County, FL, Santa Rosa County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Baldwin County, GA, Barrow County, GA, Bibb County, GA, Bleckley County, GA, Butts County, GA, Calhoun County, GA, Chattahoochee County, GA, Clarke County, GA, Clay County, GA, Colquitt County, GA, Crawford County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Fayette County, GA, Grady County, GA, Greene County, GA, Hancock County, GA, Harris County, GA, Henry County, GA, Houston County, GA, Jackson County, GA, Jasper County, GA, Jones County, GA, Lamar County, GA, Lee County, GA, Macon County, GA, Marion County, GA, Meriwether County, GA, Miller County, GA, Mitchell County, GA, Monroe County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Peach County, GA, Pike County, GA, Pulaski County, GA, Putnam County, GA, Quitman County, GA, Randolph County, GA, Rockdale County, GA, Schley County, GA, Seminole County, GA, Spalding County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Taylor County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Twiggs County, GA, Upson County, GA, Walton County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wilcox County, GA, Wilkinson County, GA, Worth County, GA
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 4.8 hours before the alert went out and 133 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
- 103 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 514 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 271 m²/s²
- 0-3 km storm-relative helicity
- 319 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
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 |
|---|---|---|---|---|
| Dec 9, 6:15 PM CST | Mesoscale Discussion | SPC | Clarke, Escambia, Mobile, Monroe, Washington | 90 min |
| Dec 9, 8:03 PM CST | Tornado Watch | SPC | Baldwin, Bibb, Blount, Choctaw, Clarke, Dallas and 18 more | 6 hr |
| Dec 9, 9:51 PM CST | Mesoscale Discussion | SPC | Autauga, Butler, Chilton, Coosa, Crenshaw, Elmore and 4 more | 54 min |
| Dec 9, 11:42 PM CST | Mesoscale Discussion | SPC | Blount, Chilton, Coosa, Cullman, Jefferson, Marshall and 3 more | 63 min |
| Dec 10, 1:25 AM CST | Mesoscale Discussion | SPC | Autauga, Baldwin, Bibb, Blount, Bullock, Butler and 42 more | 65 min |
| Dec 10, 1:41 AM CST | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bibb, Blount, Bullock and 40 more | 5 hr |
| Dec 10, 3:31 AM CST | Mesoscale Discussion | SPC | Autauga, Baldwin, Bibb, Blount, Butler, Calhoun and 31 more | 59 min |
| Dec 10, 5:29 AM CST | Mesoscale Discussion | SPC | Autauga, Baldwin, Barbour, Bullock, Butler, Calhoun and 31 more | 61 min |
| Dec 10, 6:47 AM CST | Tornado Watch | SPC | Autauga, Baldwin, Barbour, Bullock, Butler, Chambers and 22 more | 7 hr |
| Dec 10, 1:08 PM CST | Mesoscale Discussion | SPC | Houston | 67 min |
Nearby
Mesoscale Discussions in Georgia, 2008Mesoscale Discussions in Florida, 2008Mesoscale Discussions in Alabama, 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.