Alert archive / Florida / Tornado Watches in 2024
Tornado Watch 683
The Storm Prediction Center issued this tornado watch at Sep 26, 2024, 6:42 AM EDT for 33 counties in Florida. It was in force for 13 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 26, 2024, 6:42 AM EDT (10:42 UTC)
- Expired
- Sep 26, 2024, 8:00 PM EDT
- In force
- 13 hr
- Issued by
- the Storm Prediction Center
- Strongest gust expected
- 60 kt
All 33 counties
Brevard County, FL, Broward County, FL, Charlotte County, FL, Citrus County, FL, Collier County, FL, DeSoto County, FL, Glades County, FL, Hardee County, FL, Hendry County, FL, Hernando County, FL, Highlands County, FL, Hillsborough County, FL, Indian River County, FL, Lake County, FL, Lee County, FL, Levy County, FL, Manatee County, FL, Marion County, FL, Martin County, FL, Miami-Dade County, FL, Monroe County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Palm Beach County, FL, Pasco County, FL, Pinellas County, FL, Polk County, FL, Saint Lucie County, FL, Sarasota County, FL, Seminole County, FL, Sumter County, FL, Volusia County, FL
The radar
The Melbourne radar (KMLB), 75 km from the middle of the area, began a volume at 10:42 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
27 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 26, 7:01 AM EDT | Tornado Warning | TBW | DeSoto, Hardee, Manatee | 8 min |
| Sep 26, 7:15 AM EDT | Tornado Warning | MFL | Palm Beach | 15 min |
| Sep 26, 7:18 AM EDT | Tornado Warning | MFL | Collier, Hendry | 27 min |
| Sep 26, 7:38 AM EDT | Tornado Warning | MFL | Collier, Hendry | 22 min |
| Sep 26, 7:55 AM EDT | Tornado Warning | MFL | Hendry | 20 min |
| Sep 26, 8:11 AM EDT | Tornado Warning | MFL | Glades, Hendry | 19 min |
| Sep 26, 8:20 AM EDT | Tornado Warning | MFL | Glades | 25 min |
| Sep 26, 8:30 AM EDT | Tornado Warning | MLB | Martin, Saint Lucie | 15 min |
| Sep 26, 8:44 AM EDT | Tornado Warning | MLB | Saint Lucie | 31 min |
| Sep 26, 9:06 AM EDT | Tornado Warning | MLB | Indian River, Saint Lucie | 24 min |
| Sep 26, 9:37 AM EDT | Tornado Warning | MFL | Broward | 23 min |
| Sep 26, 10:12 AM EDT | Tornado Warning | MLB | Brevard | 33 min |
| Sep 26, 10:34 AM EDT | Tornado Warning | MLB | Brevard, Volusia | 26 min |
| Sep 26, 4:25 PM EDT | Tornado Warning | MLB | Volusia | 20 min |
| Sep 26, 4:37 PM EDT | Tornado Warning | TBW | Charlotte, Sarasota | 23 min |
| Sep 26, 4:57 PM EDT | Tornado Warning | TBW | Manatee, Sarasota | 18 min |
| Sep 26, 5:06 PM EDT | Tornado Warning | TBW | Charlotte, DeSoto, Lee, Sarasota | 24 min |
| Sep 26, 5:25 PM EDT | Tornado Warning | TBW | Charlotte, DeSoto, Manatee, Sarasota | 20 min |
| Sep 26, 5:44 PM EDT | Tornado Warning | TBW | Charlotte, DeSoto, Sarasota | 16 min |
| Sep 26, 5:46 PM EDT | Tornado Warning | TBW | DeSoto, Hardee, Manatee | 14 min |
| Sep 26, 6:08 PM EDT | Tornado Warning | TBW | Charlotte, DeSoto, Manatee, Sarasota | 37 min |
| Sep 26, 6:29 PM EDT | Tornado Warning | TBW | Charlotte, DeSoto, Lee | 31 min |
| Sep 26, 6:47 PM EDT | Tornado Warning | TBW | Hillsborough, Polk | 13 min |
| Sep 26, 7:19 PM EDT | Tornado Warning | TBW | Charlotte, DeSoto, Hardee, Manatee, Sarasota | 26 min |
| Sep 26, 7:46 PM EDT | Tornado Warning | TBW | Charlotte, DeSoto | 15 min |
| Sep 26, 7:47 PM EDT | Tornado Warning | TBW | Charlotte, DeSoto | 13 min |
| Sep 26, 7:47 PM EDT | Tornado Warning | TBW | DeSoto, Hardee | 13 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
Tampa Bay, FL (KTBW), launched 00:00Z, 10.7 hours before the alert went out and 105 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
- 476 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 936 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 256 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 7.0
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, 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, 7:50 PM EDT | Tornado Watch | SPC | Alachua, Baker, Bradford, Brevard, Charlotte, Citrus and 35 more | 9 hr |
Nearby
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.