Tornadoes · United States · Florida · 2024
EF0 tornado, Orange Mills, Florida, July 20, 2024
This EF0 tornado ran 0.4 miles across Putnam County on July 20, 2024, touching down at 9:33 PM EDT and reaching 5 yards wide. It killed nobody.
The rating scale
Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.
EF065 to 85 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
EF2111 to 135 mph
Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.
EF3136 to 165 mph
Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
EF5over 200 mph
Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.
Unrated
The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.
The record
- Rating
- EF0
- Date
- July 20, 2024
- Touchdown
- 9:33 PM EDT (01:33 UTC)
- Lifted
- 9:35 PM EDT (01:35 UTC)
- On the ground
- 2 minutes
- Path length
- 0.4 miles (0.7 km)
- Path width
- 5 yards (5 m)
- Deaths
- 0
- Injuries
- 0
- County
- Putnam County
- Touchdown point
- 29.716, -81.566
- Lift-off point
- 29.711, -81.571
- Record number
- 2407201933-01
What the Weather Service recorded
A prevailing SW flow combined with the river, lake and sea breezes converged east of Highway 301 in the late evening over a moist and unstable airmass. Numerous boundary mergers produced waterspouts over the St. Johns River west of Hastings, FL and over Lake George. The waterspout over Lake George shifted onto Drayton Island and became a landspout. No damages or injuries were reported. Other storms produced gusty winds and locally heavy rainfall especially across SE GA, including some localized flooding reports.
Waterspout was spotted by county deputy over the St. Johns River near SR 207 and Rector Road. No injuries or damage was reported.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 00:52 UTC | 02:45 UTC | Flood Advisory | JAX |
| 02:53 UTC | 03:56 UTC | Flood Advisory | JAX |
Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.
The forecast that day
The Storm Prediction Center had this point in a General Thunderstorms Risk. The outlook in force was issued at 00:58 UTC.
SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.
The air that afternoon
The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.
Jacksonville, FL (KJAX), 00:00Z
1.6 hours before the tornado, 88 km from the path. July 21, 2024.
- Mixed-layer CAPE
- 157 J/kg
- Mixed-layer CIN
- -45 J/kg
- Surface CAPE
- 1318 J/kg
- Mixed-layer LCL
- 725 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
- 0-3 km lapse rate
- 5.2 K/km
Jacksonville, FL (KJAX), 12:00Z
10.4 hours after it, 88 km from the path. July 21, 2024.
- Mixed-layer CAPE
- 1035 J/kg
- Mixed-layer CIN
- -80 J/kg
- Surface CAPE
- 379 J/kg
- Mixed-layer LCL
- 942 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 4.2 K/km
The radar
The Jacksonville radar (KJAX), 87 km away, was scanning. The volume nearest the touchdown began at 01:33 UTC.
Open the radar archive at this moment, over the track
Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.
What was reported nearby
Local storm reports within 60 km of the path, in the three hours either side.
| Time (UTC) | Report | Where | County | Remark |
|---|---|---|---|---|
| 00:20 UTC | LANDSPOUT | 2 S Georgetown | Putnam, FL | Waterspout on Lake George went onto Drayton Island and became a land spout. No damage was reported. |
| 01:33 UTC | WATERSPOUT | 2 Nne Orange Mills | Putnam, FL | Corrects previous report from Putnam County: Waterspout was spotted by county deputy over the St. Johns River near SR 207 and Rector Road. |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2024 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are
The other tornadoes of July 20, 2024
4 more were confirmed in the United States that day.
What this means
Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.
Sources
NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.