Alert archive / Georgia / Tornado Watches in 2024

Tornado Watch 685

September 26, 202430 counties in Florida; 40 counties in Georgia

The Storm Prediction Center issued this tornado watch at Sep 26, 2024, 10:49 AM EDT for 30 counties in Florida; 40 counties in Georgia. It was in force for 11 hr.

The area

The outline as issued.

The facts

Issued: Sep 26, 2024, 10:49 AM EDT (14:49 UTC)
Expired: Sep 26, 2024, 10:00 PM EDT
In force: 11 hr
Issued by: the Storm Prediction Center
Largest hail expected: 0.5 in
Strongest gust expected: 60 kt

All 70 counties

Alachua County, FL, Baker County, FL, Bay County, FL, Bradford County, FL, Calhoun County, FL, Clay County, FL, Columbia County, FL, Dixie County, FL, Duval County, FL, Flagler County, FL, Franklin County, FL, Gadsden County, FL, Gilchrist 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, Nassau County, FL, Putnam County, FL, Saint Johns County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Wakulla County, FL, Washington County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Calhoun County, GA, Camden County, GA, Charlton County, GA, Clay County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Echols County, GA, Glynn County, GA, Grady County, GA, Irwin County, GA, Jeff Davis County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Pierce County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Ware County, GA, Wayne County, GA, Worth County, GA

The radar

The Tallahassee radar (KTLH), 69 km from the middle of the area, began a volume at 14:52 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.

What SPC expected

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

Two or more tornadoes: 80%
One or more EF2 to EF5 tornadoes: 20%
Ten or more severe wind reports: 10%
One or more gusts of 65 knots or more: 10%
Ten or more severe hail reports: 5%
One or more hailstones of 2 inches or more: 5%
Six or more combined severe hail and wind reports: 20%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Sep 26, 10:51 AM EDT	Tornado Warning	TAE	Liberty	24 min
Sep 26, 10:55 AM EDT	Tornado Warning	TAE	Franklin	35 min
Sep 26, 11:14 AM EDT	Tornado Warning	JAX	Glynn	17 min
Sep 26, 11:19 AM EDT	Flash Flood Warning	TAE	Calhoun, Liberty	4 hr
Sep 26, 11:29 AM EDT	Flash Flood Warning Considerable damage threat	TAE	Franklin, Gulf	4 hr
Sep 26, 11:40 AM EDT	Tornado Warning	TAE	Franklin, Gulf, Liberty	35 min
Sep 26, 12:04 PM EDT	Tornado Warning	TAE	Calhoun, Liberty	26 min
Sep 26, 12:48 PM EDT	Tornado Warning	JAX	Appling, Bacon, Pierce	27 min
Sep 26, 12:52 PM EDT	Flash Flood Warning	TAE	Jackson	4 hr
Sep 26, 1:15 PM EDT	Tornado Warning	JAX	Appling	30 min
Sep 26, 1:35 PM EDT	Tornado Warning	TAE	Calhoun, Liberty	25 min
Sep 26, 1:45 PM EDT	Tornado Warning	JAX	Appling	30 min
Sep 26, 1:51 PM EDT	Tornado Warning	TAE	Calhoun	24 min
Sep 26, 2:14 PM EDT	Tornado Warning	JAX	Bacon, Coffee	31 min
Sep 26, 2:23 PM EDT	Tornado Warning	JAX	Coffee, Jeff Davis	37 min
Sep 26, 2:26 PM EDT	Tornado Warning	TAE	Ben Hill, Irwin, Turner	34 min
Sep 26, 2:28 PM EDT	Tornado Warning	TAE	Ben Hill, Irwin	32 min
Sep 26, 2:36 PM EDT	Flash Flood Warning	TAE	Bay, Washington	3 hr
Sep 26, 2:41 PM EDT	Tornado Warning	JAX	Coffee, Jeff Davis	34 min
Sep 26, 2:46 PM EDT	Tornado Warning	TAE	Calhoun, Jackson	29 min
Sep 26, 3:16 PM EDT	Flash Flood Warning	TAE	Calhoun, Gulf	2 hr
Sep 26, 3:43 PM EDT	Tornado Warning	TAE	Jackson, Washington	32 min
Sep 26, 4:45 PM EDT	Flash Flood Warning	TAE	Holmes, Jackson, Washington	3 hr
Sep 26, 4:45 PM EDT	Tornado Warning	TAE	Franklin, Gulf	30 min
Sep 26, 5:07 PM EDT	Tornado Warning	TAE	Franklin, Gulf, Liberty	38 min
Sep 26, 5:17 PM EDT	Flash Flood Warning	TAE	Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 6 more	8 hr
Sep 26, 5:31 PM EDT	Tornado Warning	JAX	Saint Johns	14 min
Sep 26, 5:43 PM EDT	Tornado Warning	JAX	Saint Johns	17 min
Sep 26, 5:55 PM EDT	Tornado Warning	JAX	Saint Johns	6 min
Sep 26, 6:38 PM EDT	Tornado Warning	TAE	Baker, Calhoun, Dougherty, Mitchell	37 min
Sep 26, 7:11 PM EDT	Tornado Warning	TAE	Baker, Calhoun, Dougherty, Terrell	34 min
Sep 26, 7:23 PM EDT	Tornado Warning	JAX	Charlton, Clinch, Ware	24 min
Sep 26, 8:16 PM EDT	Tornado Warning	JAX	Camden, Glynn	29 min
Sep 26, 8:49 PM EDT	Tornado Warning	JAX	Glynn	26 min
Sep 26, 9:13 PM EDT	Flash Flood Warning	TAE	Dixie, Franklin, Gadsden, Jefferson, Lafayette, Leon and 3 more	6 hr
Sep 26, 9:13 PM EDT	Tornado Warning	JAX	Glynn	17 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

Jacksonville, FL (KJAX), launched 12:00Z, 2.8 hours before the alert went out and 196 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: 637 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 802 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 250 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 4.6

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 26, 4:46 AM EDT	Mesoscale Discussion	SPC	Broward, Collier, Glades, Hendry, Miami-Dade, Monroe and 1 more	2 hr
Sep 26, 6:42 AM EDT	Tornado Watch	SPC	Brevard, Broward, Charlotte, Citrus, Collier, DeSoto and 27 more	13 hr
Sep 26, 9:07 AM EDT	Mesoscale Discussion	SPC	Brevard, Broward, Charlotte, Collier, DeSoto, Glades and 16 more	113 min
Sep 26, 10:12 AM EDT	Mesoscale Discussion	SPC	Alachua, Baker, Bay, Bradford, Calhoun, Clay and 25 more	63 min
Sep 26, 12:20 PM EDT	Mesoscale Discussion	SPC	Calhoun, Franklin, Gadsden, Gulf, Jackson, Liberty and 1 more	115 min
Sep 26, 12:32 PM EDT	Mesoscale Discussion	SPC	Brevard, Broward, Charlotte, Citrus, Collier, DeSoto and 27 more	118 min
Sep 26, 3:14 PM EDT	Mesoscale Discussion	SPC	Charlotte, Citrus, Collier, DeSoto, Glades, Hardee and 12 more	2 hr
Sep 26, 3:40 PM EDT	Mesoscale Discussion	SPC	Bay, Calhoun, Columbia, Dixie, Franklin, Gadsden and 12 more	2 hr
Sep 26, 6:39 PM EDT	Mesoscale Discussion	SPC	Nassau	5 hr
Sep 26, 7:02 PM EDT	Mesoscale Discussion	SPC	Alachua, Baker, Bradford, Charlotte, Citrus, Clay and 38 more	88 min
Sep 26, 7:50 PM EDT	Tornado Watch	SPC	Alachua, Baker, Bradford, Brevard, Charlotte, Citrus and 35 more	9 hr
Sep 26, 7:36 AM EDT	Mesoscale Discussion	SPC	Bryan, Bulloch, Burke, Candler, Chatham, Effingham and 11 more	114 min
Sep 26, 8:32 AM EDT	Tornado Watch	SPC	Bibb, Bleckley, Bryan, Bulloch, Burke, Candler and 34 more	12 hr
Sep 26, 12:42 PM EDT	Mesoscale Discussion	SPC	Appling, Bryan, Bulloch, Burke, Candler, Chatham and 11 more	2 hr
Sep 26, 1:52 PM EDT	Mesoscale Discussion	SPC	Appling, Baldwin, Ben Hill, Bibb, Bleckley, Crisp and 22 more	53 min
Sep 26, 4:10 PM EDT	Mesoscale Discussion	SPC	Appling, Brantley, Bryan, Bulloch, Burke, Camden and 16 more	2 hr

Nearby

Tornado Watches in Georgia, 2024 Tornado Watches in Florida, 2024 Every tornado watch in 2024

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.