Alert archive / Alabama / Mesoscale Discussions in 2008
Mesoscale Discussion 2147
The Storm Prediction Center issued this mesoscale discussion at Aug 24, 2008, 10:11 AM CDT for 30 counties in Alabama; 5 counties in Georgia. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 24, 2008, 10:11 AM CDT (15:11 UTC)
- Expired
- Aug 24, 2008, 12:15 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 35 counties
Autauga County, AL, Barbour County, AL, Bibb County, AL, Bullock County, AL, Butler County, AL, Chambers County, AL, Chilton County, AL, Clay County, AL, Coffee County, AL, Coosa County, AL, Crenshaw County, AL, Dale County, AL, Elmore County, AL, Fayette County, AL, Henry County, AL, Houston County, AL, Jefferson 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, St. Clair County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL, Walker County, AL, Clay County, GA, Early County, GA, Harris County, GA, Muscogee County, GA, Quitman 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 12:00Z, 3.2 hours before the alert went out and 91 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
- 292 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 515 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
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 |
|---|---|---|---|---|
| Aug 23, 7:06 PM CDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bullock, Crenshaw, Elmore, Henry and 6 more | 84 min |
| Aug 23, 7:40 PM CDT | Tornado Watch | SPC | Autauga, Barbour, Bullock, Butler, Chambers, Chilton and 13 more | 7 hr |
| Aug 23, 9:13 PM CDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bullock, Chilton, Coosa, Crenshaw and 9 more | 92 min |
| Aug 24, 2:00 AM CDT | Mesoscale Discussion | SPC | Autauga, Bibb, Bullock, Chilton, Coosa, Elmore and 7 more | 90 min |
| Aug 24, 2:51 AM CDT | Tornado Watch | SPC | Autauga, Barbour, Bibb, Bullock, Chambers, Chilton and 14 more | 4 hr |
| Aug 24, 11:47 AM CDT | Tornado Watch | SPC | Autauga, Barbour, Bibb, Bullock, Butler, Calhoun and 38 more | 8 hr |
| Aug 24, 2:55 PM CDT | Mesoscale Discussion | SPC | Autauga, Barbour, Bibb, Bullock, Butler, Chambers and 24 more | 95 min |
Nearby
Mesoscale Discussions in Alabama, 2008Mesoscale Discussions in Georgia, 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.