Alert archive / Georgia / Tornado Watches in 2007

Tornado Watch 11

January 7, 200713 counties in Alabama; 73 counties in Georgia

The Storm Prediction Center issued this tornado watch at Jan 7, 2007, 3:12 PM CST for 13 counties in Alabama; 73 counties in Georgia. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jan 7, 2007, 3:12 PM CST (21:12 UTC)
Expired
Jan 7, 2007, 10:00 PM CST
In force
7 hr
Issued by
the Storm Prediction Center
All 86 counties

Barbour County, AL, Bullock County, AL, Chambers County, AL, Coffee County, AL, Covington County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Lee County, AL, Macon County, AL, Pike County, AL, Russell County, AL, Baker County, GA, Baldwin County, GA, Ben Hill County, GA, Bibb County, GA, Bleckley County, GA, Butts County, GA, Calhoun County, GA, Carroll County, GA, Chattahoochee County, GA, Clay County, GA, Clayton County, GA, Colquitt County, GA, Coweta County, GA, Crawford County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Douglas County, GA, Early County, GA, Fayette County, GA, Grady County, GA, Greene County, GA, Hancock County, GA, Haralson 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, Laurens 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, 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, 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

The radar

The Atlanta radar (KFFC), 70 km from the middle of the area, began a volume at 21:12 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

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

IssuedProductOfficeCountiesLasted
Jan 7, 4:15 PM CSTTornado WarningBMXChambers45 min
Jan 7, 4:43 PM CSTSevere Thunderstorm WarningFFCHeard, Troup47 min
Jan 7, 4:53 PM CSTFlash Flood WarningBMXPike3 hr
Jan 7, 4:53 PM CSTFlash Flood WarningBMXAutauga, Bullock, Elmore, Fayette, Jefferson, Lamar and 8 more233 days
Jan 7, 4:56 PM CSTTornado WarningFFCTroup34 min
Jan 7, 4:59 PM CSTTornado WarningBMXChambers16 min
Jan 7, 5:26 PM CSTTornado WarningFFCCoweta, Heard, Troup34 min
Jan 7, 5:53 PM CSTSevere Thunderstorm WarningBMXMacon52 min
Jan 7, 5:55 PM CSTTornado WarningFFCCoweta35 min
Jan 7, 5:56 PM CSTTornado WarningBMXMacon18 min
Jan 7, 6:01 PM CSTSevere Thunderstorm WarningFFCFayette29 min
Jan 7, 6:16 PM CSTSevere Thunderstorm WarningTAECoffee44 min
Jan 7, 6:17 PM CSTTornado WarningFFCFayette, Spalding28 min
Jan 7, 6:24 PM CSTSevere Thunderstorm WarningFFCMeriwether36 min
Jan 7, 7:00 PM CSTSevere Thunderstorm WarningTAECoffee, Dale45 min
Jan 7, 7:36 PM CSTTornado WarningTAEDale24 min
Jan 7, 7:45 PM CSTTornado WarningBMXBarbour30 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, 9.2 hours before the alert went out and 71 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 2007-01-07Temperature 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 2007-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 187 square meters per square second.19395878Sfc1 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
667 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
187 m²/s²
0-3 km storm-relative helicity
154 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
Jan 7, 11:31 AM CSTMesoscale DiscussionSPCAutauga, Barbour, Bibb, Blount, Bullock, Butler and 39 more2 hr
Jan 7, 12:26 PM CSTTornado WatchSPCAutauga, Baldwin, Bibb, Blount, Butler, Calhoun and 38 more6 hr
Jan 7, 2:51 PM CSTMesoscale DiscussionSPCAutauga, Baldwin, Barbour, Bibb, Bullock, Butler and 36 more84 min
Jan 7, 5:34 PM CSTMesoscale DiscussionSPCBarrow, Clarke, DeKalb, Elbert, Forsyth, Fulton and 13 more86 min

Nearby

Tornado Watches in Georgia, 2007Tornado Watches in Alabama, 2007Every tornado watch in 2007

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.