Alert archive / Florida / Tornado Watches in 2024
Tornado Watch 686
The Storm Prediction Center issued this tornado watch at Sep 26, 2024, 7:50 PM EDT for 41 counties in Florida; 26 counties in Georgia. It was in force for 9 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 26, 2024, 7:50 PM EDT (23:50 UTC)
- Expired
- Sep 27, 2024, 4:36 AM EDT
- In force
- 9 hr
- Issued by
- the Storm Prediction Center
- Strongest gust expected
- 60 kt
All 67 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Brevard County, FL, Charlotte County, FL, Citrus County, FL, Clay County, FL, Columbia County, FL, DeSoto County, FL, Dixie County, FL, Duval County, FL, Flagler County, FL, Gilchrist County, FL, Hamilton County, FL, Hardee County, FL, Hernando County, FL, Highlands County, FL, Hillsborough County, FL, Jefferson County, FL, Lafayette County, FL, Lake County, FL, Lee County, FL, Levy County, FL, Madison County, FL, Manatee County, FL, Marion County, FL, Nassau County, FL, Orange County, FL, Osceola County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Putnam County, FL, Saint Johns County, FL, Sarasota County, FL, Seminole County, FL, Sumter County, FL, Suwannee County, FL, Taylor County, FL, Union County, FL, Volusia County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Ben Hill County, GA, Berrien County, GA, Brantley County, GA, Brooks County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Coffee County, GA, Colquitt County, GA, Cook County, GA, Echols County, GA, Glynn County, GA, Irwin County, GA, Jeff Davis County, GA, Lanier County, GA, Lowndes County, GA, Pierce County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Ware County, GA, Wayne County, GA, Worth County, GA
The radar
The Jacksonville radar (KJAX), 65 km from the middle of the area, began a volume at 23:50 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
- 10%
- 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
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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 |
| Sep 26, 11:04 PM EDT | Tornado Warning | JAX | Columbia, Hamilton | 26 min |
| Sep 26, 11:13 PM EDT | Flash Flood Warning | TAE | Berrien, Brooks, Colquitt, Cook, Grady, Lanier and 3 more | 6 hr |
| Sep 27, 12:27 AM EDT | Flash Flood Warning | JAX | Hamilton, Suwannee | 3 hr |
| Sep 27, 12:36 AM EDT | Flash Flood Warning | TAE | Ben Hill, Dougherty, Irwin, Tift, Turner, Worth | 5 hr |
| Sep 27, 1:17 AM EDT | Flash Flood Warning | JAX | Atkinson, Clinch | 4 hr |
| Sep 27, 2:11 AM EDT | Flash Flood Warning | JAX | Atkinson, Bacon, Coffee, Jeff Davis | 4 hr |
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, 11.8 hours before the alert went out and 66 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.
- 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
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, 10:49 AM EDT | Tornado Watch | SPC | Alachua, Baker, Bay, Bradford, Calhoun, Clay and 24 more | 11 hr |
| 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, 7:36 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 Florida, 2024Tornado Watches in Georgia, 2024Every 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.