Tornadoes · United States · Florida · 2023
EF0 tornado, (Apf)Naples Muni Arp, Florida, August 24, 2023
This EF0 tornado ran 0.8 miles across Collier County on August 24, 2023, touching down at 4:55 PM EDT and reaching 50 yards wide. It killed nobody, and did $100,000 of property damage.
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
- August 24, 2023
- Touchdown
- 4:55 PM EDT (20:55 UTC)
- Lifted
- 4:58 PM EDT (20:58 UTC)
- On the ground
- 3 minutes
- Path length
- 0.8 miles (1.2 km)
- Path width
- 50 yards (46 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $100,000
- County
- Collier County
- Touchdown point
- 26.145, -81.756
- Lift-off point
- 26.142, -81.768
- Record number
- 2308241455-01
The damage survey
6 damage points were recorded along this path by NWS MFL, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 80 mph.
- Multiple large branches snapped off softwood tree in front yard of 842 Roseate Dr
- Portion of roof removed and laying in front driveway/yard
- Small panel of siding and softwood tree damage at 3586 Hibiscus Ave
- Young laurel oak uprooted in Lawrence Walker Technical College west parking lot
Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.
What the Weather Service recorded
A brief tornado occurred during the early evening of Thursday August 24, 2023 in Naples, Florida. This led to minor damage, primarily to cars and large trees, across just less than a mile long path. There were no reports of injuries or deaths.
A brief tornado occurred during the early evening of Thursday August |24, 2023 in Naples. The tornado was believed to have touched down near |Roseate Dr and Robin Ave where multiple large tree branches were snapped off. |The tornado then traveled SW and did some roof damage to a home on Cardinal |St. Additional minor tree and aluminum damage was observed near the |Walker Technical College. The strongest wind damage was observed in the |vicinity of the college where 9 vehicles were damaged in the parking lot. Some |of the car damage was from a falling tree, and other damage was from cars being |moved into each other by the wind. The tornado then crossed Airport Rd south |of Estey Ave before lifting. Wind speeds were mostly estimated between 50-60 mph |however the strongest winds near the technical college were estimated to be |around 80 mph, for a rating of EF-0.
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.
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 19:55 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.
Miami, FL (KMFL), 12:00Z
8.9 hours before the tornado, 151 km from the path. August 24, 2023.
- Mixed-layer CAPE
- 866 J/kg
- Mixed-layer CIN
- -34 J/kg
- Surface CAPE
- 1729 J/kg
- Mixed-layer LCL
- 980 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 4.8 K/km
Miami, FL (KMFL), 00:00Z
3.1 hours after it, 151 km from the path. August 25, 2023.
- Mixed-layer CAPE
- 1351 J/kg
- Mixed-layer CIN
- -11 J/kg
- Surface CAPE
- 2677 J/kg
- Mixed-layer LCL
- 795 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 6.3 K/km
The radar
The Miami radar (KAMX), 147 km away, was scanning. The volume nearest the touchdown began at 20:57 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 |
|---|---|---|---|---|
| 20:52 UTC | TORNADO | 2 W East Naples | Collier, FL | Video from broadcast media of short lived weak tornado (potentially landspout) moving through East Naples along Airport Pulling Rd,. |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2023 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are
The other tornadoes of August 24, 2023
21 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| August 24 | 2:38 PM CDT | Unrated | McHenry, ND | 0.8 | 50 | |||
| August 24 | 2:54 PM CDT | Unrated | McHenry, ND | 0.6 | 50 | |||
| August 24 | 8:15 PM EDT | EF1 | Kent, MI | 8.7 | 100 | $10 million | ||
| August 24 | 9:29 PM EDT | EF2 | Ingham, MI | 12.0 | 500 | 2 | 4 | $75 million |
| August 24 | 10:19 PM EDT | EF0 | Wayne, MI | 1.7 | 200 | $100,000 | ||
| August 24 | 10:23 PM EDT | EF1 | Wayne, MI | 3.0 | 200 | $60,000 | ||
| August 24 | 10:38 PM EDT | EF1 | Monroe, MI | 4.9 | 200 | $1.0 million | ||
| August 24 | 10:39 PM EDT | EF1 | Monroe, MI | 5.4 | 200 | $350,000 | ||
| August 24 | 10:43 PM EDT | EF1 | Wayne, MI | 1.4 | 300 | $50,000 | ||
| August 24 | 11:08 PM EDT | EF1 | Sandusky, OH | 4.5 | 100 | $35,000 | ||
| August 24 | 11:46 PM EDT | EF1 | Erie, OH | 0.3 | 100 | $30,000 | ||
| August 24 | 11:59 PM EDT | EF1 | Cuyahoga, OH | 0.8 | 150 | $165,000 | ||
| August 24 | 12:00 AM EDT | EF0 | Lorain, OH | 0.3 | 50 | $50,000 | ||
| August 24 | 12:05 AM EDT | EF0 | Lorain, OH | 1.1 | 100 | $40,000 | ||
| August 24 | 12:06 AM EDT | EF1 | Lake, OH | 3.3 | 150 | $200,000 | ||
| August 24 | 12:07 AM EDT | EF2 | Cuyahoga, OH | 1.5 | 100 | $300,000 | ||
| August 24 | 12:11 AM EDT | EF1 | Medina, OH | 1.5 | 200 | $20,000 | ||
| August 24 | 12:16 AM EDT | EF1 | Geauga, OH | 1.8 | 100 | $85,000 | ||
| August 24 | 12:18 AM EDT | EF1 | Geauga, OH | 1.2 | 175 | $50,000 | ||
| August 24 | 12:22 AM EDT | EF2 | Geauga, OH | 0.7 | 100 | $65,000 | ||
| August 24 | 12:35 AM EDT | EF0 | Trumbull, OH | 1.9 | 100 | $35,000 |
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.