Alert archive / Georgia / Tornado Watches in 2010

Tornado Watch 11

January 24, 20104 states

The Storm Prediction Center issued this tornado watch at Jan 24, 2010, 4:18 PM CST for 4 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Jan 24, 2010, 4:18 PM CST (22:18 UTC)
Expired: Jan 24, 2010, 10:48 PM CST
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1 in
Strongest gust expected: 60 kt

All 167 counties

Barbour County, AL, Bullock County, AL, Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Pike County, AL, Russell County, AL, Bay County, FL, Calhoun County, FL, Dixie County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Hamilton County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Liberty County, FL, Madison County, FL, Suwannee County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Baldwin County, GA, Banks County, GA, Barrow County, GA, Ben Hill County, GA, Berrien County, GA, Bibb County, GA, Bleckley County, GA, Brooks County, GA, Bulloch County, GA, Burke County, GA, Butts County, GA, Calhoun County, GA, Candler County, GA, Chattahoochee County, GA, Clarke County, GA, Clay County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Columbia County, GA, Cook County, GA, Crawford County, GA, Crisp County, GA, Decatur County, GA, Dodge County, GA, Dooly County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Elbert County, GA, Emanuel County, GA, Evans County, GA, Franklin County, GA, Glascock County, GA, Grady County, GA, Greene County, GA, Hancock County, GA, Harris County, GA, Hart County, GA, Henry County, GA, Houston County, GA, Irwin County, GA, Jackson County, GA, Jasper County, GA, Jeff Davis County, GA, Jefferson County, GA, Jenkins County, GA, Johnson County, GA, Jones County, GA, Lamar County, GA, Lanier County, GA, Laurens County, GA, Lee County, GA, Lincoln County, GA, Lowndes County, GA, Macon County, GA, Madison County, GA, Marion County, GA, McDuffie County, GA, Meriwether County, GA, Miller County, GA, Mitchell County, GA, Monroe County, GA, Montgomery County, GA, Morgan County, GA, Muscogee County, GA, Newton County, GA, Oconee County, GA, Oglethorpe County, GA, Peach County, GA, Pike County, GA, Pulaski County, GA, Putnam County, GA, Quitman County, GA, Randolph County, GA, Richmond County, GA, Rockdale County, GA, Schley County, GA, Screven County, GA, Seminole County, GA, Spalding County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taliaferro County, GA, Tattnall County, GA, Taylor County, GA, Telfair County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Toombs County, GA, Treutlen County, GA, Turner County, GA, Twiggs County, GA, Upson County, GA, Walton County, GA, Ware County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Wilkes County, GA, Wilkinson County, GA, Worth County, GA, Abbeville County, SC, Aiken County, SC, Allendale County, SC, Anderson County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Cherokee County, SC, Chester County, SC, Clarendon County, SC, Edgefield County, SC, Fairfield County, SC, Greenville County, SC, Greenwood County, SC, Hampton County, SC, Kershaw County, SC, Laurens County, SC, Lee County, SC, Lexington County, SC, McCormick County, SC, Newberry County, SC, Orangeburg County, SC, Pickens County, SC, Richland County, SC, Saluda County, SC, Spartanburg County, SC, Sumter County, SC, Union County, SC, York County, SC

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 40%
One or more EF2 to EF5 tornadoes: 20%
Ten or more severe wind reports: 30%
One or more gusts of 65 knots or more: 30%
Ten or more severe hail reports: 20%
One or more hailstones of 2 inches or more: 5%
Six or more combined severe hail and wind reports: 80%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jan 24, 4:39 PM CST	Severe Thunderstorm Warning	TAE	Coffee, Dale	51 min
Jan 24, 4:40 PM CST	Flash Flood Warning	GSP	Pickens	6 hr
Jan 24, 4:51 PM CST	Severe Thunderstorm Warning	GSP	Elbert	24 min
Jan 24, 5:06 PM CST	Tornado Warning	GSP	Elbert	24 min
Jan 24, 5:08 PM CST	Tornado Warning	FFC	Dodge, Laurens, Wheeler	52 min
Jan 24, 5:14 PM CST	Flash Flood Warning	GSP	Greenville	6 hr
Jan 24, 5:24 PM CST	Severe Thunderstorm Warning	TAE	Dale, Henry	36 min
Jan 24, 5:29 PM CST	Flash Flood Warning	GSP	Franklin, Stephens	6 hr
Jan 24, 5:30 PM CST	Severe Thunderstorm Warning	BMX	Barbour, Russell	30 min
Jan 24, 6:11 PM CST	Severe Thunderstorm Warning	TAE	Henry	34 min
Jan 24, 6:16 PM CST	Severe Thunderstorm Warning	TAE	Henry, Houston	29 min
Jan 24, 6:18 PM CST	Severe Thunderstorm Warning	GSP	Franklin, Hart, Stephens	42 min
Jan 24, 6:21 PM CST	Tornado Warning	GSP	Franklin, Hart, Stephens	24 min
Jan 24, 6:32 PM CST	Tornado Warning	FFC	Clarke, Jackson, Madison	28 min
Jan 24, 6:37 PM CST	Severe Thunderstorm Warning	TAE	Calhoun, Clay, Randolph, Terrell	38 min
Jan 24, 6:58 PM CST	Flash Flood Warning	GSP	Elbert, Hart	6 hr
Jan 24, 7:10 PM CST	Severe Thunderstorm Warning	TAE	Baker, Calhoun, Early	35 min
Jan 24, 7:38 PM CST	Flash Flood Warning	GSP	Greenville, Laurens, Spartanburg	6 hr
Jan 24, 9:11 PM CST	Severe Thunderstorm Warning	CAE	Columbia, Lincoln, McDuffie	49 min
Jan 24, 9:26 PM CST	Flash Flood Warning	CAE	Columbia, Lincoln, McDuffie	84 min
Jan 24, 9:33 PM CST	Flash Flood Warning	GSP	Cherokee, Union	6 hr
Jan 24, 9:44 PM CST	Flash Flood Warning	GSP	Chester, York	6 hr
Jan 24, 9:51 PM CST	Severe Thunderstorm Warning	GSP	Cherokee, Laurens, Spartanburg, Union	24 min
Jan 24, 9:53 PM CST	Severe Thunderstorm Warning	CAE	Burke, Richmond	37 min
Jan 24, 10:05 PM CST	Severe Thunderstorm Warning	CAE	Aiken, Edgefield, Saluda	40 min
Jan 24, 10:05 PM CST	Tornado Warning	GSP	Cherokee, Chester, Union, York	40 min
Jan 24, 10:11 PM CST	Flash Flood Warning	CAE	Columbia, Richmond	59 min
Jan 24, 10:30 PM CST	Severe Thunderstorm Warning	CAE	Burke	45 min
Jan 24, 10:47 PM CST	Severe Thunderstorm Warning	CAE	Aiken, Lexington, Newberry, Richland, Saluda	43 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.3 hours before the alert went out and 147 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 211 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 602 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 244 m²/s²
0-3 km storm-relative helicity: 340 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 24, 6:01 AM CST	Mesoscale Discussion	SPC	Autauga, Baldwin, Bibb, Butler, Choctaw, Clarke and 11 more	119 min
Jan 24, 6:28 AM CST	Tornado Watch	SPC	Autauga, Baldwin, Bullock, Butler, Chilton, Choctaw and 22 more	6 hr
Jan 24, 10:25 AM CST	Mesoscale Discussion	SPC	Autauga, Barbour, Bullock, Butler, Chambers, Clay and 17 more	65 min
Jan 24, 11:26 AM CST	Tornado Watch	SPC	Baldwin, Barbour, Bullock, Butler, Chambers, Clay and 21 more	5 hr
Jan 24, 1:51 PM CST	Mesoscale Discussion	SPC	Baldwin, Barbour, Bullock, Butler, Chambers, Clay and 19 more	54 min
Jan 24, 5:21 PM CST	Mesoscale Discussion	SPC	Henry, Houston	84 min

Nearby

Tornado Watches in Georgia, 2010 Tornado Watches in South Carolina, 2010 Tornado Watches in Florida, 2010 Every tornado watch in 2010

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.