Alert archive / Georgia / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 72

April 12, 200418 counties in Alabama; Holmes County, Jackson County, Florida; 73 counties in Georgia

The Storm Prediction Center issued this severe thunderstorm watch at Apr 12, 2004, 6:50 PM CDT for 18 counties in Alabama; Holmes County, Jackson County, Florida; 73 counties in Georgia. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Apr 12, 2004, 6:50 PM CDT (23:50 UTC)
Expired
Apr 13, 2004, 12:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 93 counties

Barbour County, AL, Bullock County, AL, Chambers County, AL, Clay County, AL, Coffee County, AL, Crenshaw County, AL, Dale County, AL, Elmore County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Lee County, AL, Macon County, AL, Montgomery County, AL, Pike County, AL, Randolph County, AL, Russell County, AL, Tallapoosa County, AL, Holmes County, FL, Jackson County, FL, Baker County, GA, Baldwin County, GA, Ben Hill County, GA, Berrien County, GA, Bibb County, GA, Bleckley County, GA, Brooks County, GA, Butts County, GA, Calhoun County, GA, Chattahoochee County, GA, Clay County, GA, Clayton County, GA, Colquitt County, GA, Cook County, GA, Coweta 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, Hancock County, GA, Harris County, GA, Heard County, GA, Henry County, GA, Houston County, GA, Irwin County, GA, Jasper County, GA, Jones County, GA, Lamar County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Lowndes County, GA, Macon County, GA, Marion County, GA, Meriwether County, GA, Miller County, GA, Mitchell County, GA, Monroe County, GA, Muscogee County, GA, Newton County, GA, Peach County, GA, Pike County, GA, Pulaski County, GA, Putnam County, GA, Quitman County, GA, Randolph 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, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Troup County, GA, Turner County, GA, Twiggs County, GA, Upson County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wilcox County, GA, Wilkinson County, GA, Worth County, GA

Warnings issued inside it

12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Apr 12, 7:07 PM CDTSevere Thunderstorm WarningFFCPike23 min
Apr 12, 7:22 PM CDTSevere Thunderstorm WarningFFCButts, Jasper23 min
Apr 12, 7:24 PM CDTSevere Thunderstorm WarningTAEJackson36 min
Apr 12, 8:20 PM CDTSevere Thunderstorm WarningTAEGeneva25 min
Apr 12, 8:33 PM CDTSevere Thunderstorm WarningTAEDale27 min
Apr 12, 8:53 PM CDTSevere Thunderstorm WarningBMXBarbour37 min
Apr 12, 9:28 PM CDTSevere Thunderstorm WarningBMXBarbour, Russell22 min
Apr 12, 9:49 PM CDTSevere Thunderstorm WarningFFCMuscogee26 min
Apr 12, 9:52 PM CDTSevere Thunderstorm WarningFFCMuscogee23 min
Apr 12, 9:53 PM CDTSevere Thunderstorm WarningBMXRussell17 min
Apr 12, 10:00 PM CDTSevere Thunderstorm WarningFFCHarris30 min
Apr 12, 10:13 PM CDTSevere Thunderstorm WarningFFCMeriwether32 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 12:00Z, 11.8 hours before the alert went out and 175 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, Peachtre/Fal Fld, GA at 12:00Z on 2004-04-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Peachtre/Fal Fld, GA at 12:00Z on 2004-04-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
629 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
278 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 1:33 PM CDTMesoscale DiscussionSPCAutauga, Barbour, Bullock, Butler, Chambers, Chilton and 18 more117 min
Apr 12, 2:10 PM CDTSevere Thunderstorm WatchSPCBarbour, Bullock, Calhoun, Chambers, Cherokee, Clay and 16 more5 hr
Apr 12, 6:31 PM CDTMesoscale DiscussionSPCBarbour, Bullock, Butler, Chambers, Clay, Coffee and 15 more59 min
Apr 12, 3:17 AM CDTMesoscale DiscussionSPCCharlotte, Collier, DeSoto, Hendry, Lee, Manatee and 1 more88 min
Apr 12, 4:15 AM CDTSevere Thunderstorm WatchSPCBrevard, Broward, Charlotte, Collier, DeSoto, Glades and 16 more6 hr
Apr 12, 6:33 AM CDTMesoscale DiscussionSPCBrevard, Broward, Charlotte, Collier, DeSoto, Glades and 16 more87 min
Apr 12, 5:43 PM CDTMesoscale DiscussionSPCBay, Calhoun, Franklin, Gulf, Holmes, Liberty and 4 more2 hr
Apr 12, 1:18 AM CDTMesoscale DiscussionSPCChatham, Effingham, Screven87 min
Apr 12, 12:52 PM CDTMesoscale DiscussionSPCBryan, Bulloch, Burke, Candler, Chatham, Effingham and 7 more113 min
Apr 12, 1:25 PM CDTTornado WatchSPCBaldwin, Bleckley, Burke, Columbia, Emanuel, Glascock and 19 more6 hr
Apr 12, 3:44 PM CDTMesoscale DiscussionSPCBaldwin, Bleckley, Burke, Columbia, Dodge, Emanuel and 19 more91 min

Nearby

Severe Thunderstorm Watches in Georgia, 2004Severe Thunderstorm Watches in Alabama, 2004Severe Thunderstorm Watches in Florida, 2004Every severe thunderstorm watch 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.