Alert archive / Georgia / Mesoscale Discussions in 2008

Mesoscale Discussion 2144

August 23, 200815 counties in Alabama; 6 counties in Florida; 29 counties in Georgia

The Storm Prediction Center issued this mesoscale discussion at Aug 23, 2008, 9:13 PM CDT for 15 counties in Alabama; 6 counties in Florida; 29 counties in Georgia. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued
Aug 23, 2008, 9:13 PM CDT (02:13 UTC)
Expired
Aug 23, 2008, 10:45 PM CDT
In force
92 min
Issued by
the Storm Prediction Center
All 50 counties

Autauga County, AL, Barbour County, AL, Bullock County, AL, Chilton County, AL, Coosa County, AL, Crenshaw County, AL, Elmore County, AL, Henry County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Montgomery County, AL, Pike County, AL, Russell County, AL, Tallapoosa County, AL, Gadsden County, FL, Jefferson County, FL, Leon County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Baker County, GA, Brooks County, GA, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Crisp County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Harris County, GA, Lee County, GA, Marion County, GA, Miller County, GA, Mitchell County, GA, Muscogee County, GA, Quitman County, GA, Randolph County, GA, Schley County, GA, Stewart County, GA, Sumter County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Webster County, GA, Worth County, GA

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 2.2 hours before the alert went out and 158 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.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2008-08-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1885 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2008-08-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1885 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
467 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 23, 7:06 PM CDTMesoscale DiscussionSPCAutauga, Barbour, Bullock, Crenshaw, Elmore, Henry and 6 more84 min
Aug 23, 7:40 PM CDTTornado WatchSPCAutauga, Barbour, Bullock, Butler, Chambers, Chilton and 13 more7 hr
Aug 24, 2:00 AM CDTMesoscale DiscussionSPCAutauga, Bibb, Bullock, Chilton, Coosa, Elmore and 7 more90 min
Aug 24, 2:51 AM CDTTornado WatchSPCAutauga, Barbour, Bibb, Bullock, Chambers, Chilton and 14 more4 hr
Aug 24, 10:11 AM CDTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Bullock, Butler, Chambers and 24 more2 hr
Aug 24, 11:47 AM CDTTornado WatchSPCAutauga, Barbour, Bibb, Bullock, Butler, Calhoun and 38 more8 hr
Aug 24, 2:55 PM CDTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Bullock, Butler, Chambers and 24 more95 min

Nearby

Mesoscale Discussions in Georgia, 2008Mesoscale Discussions in Alabama, 2008Mesoscale Discussions in Florida, 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.