Tornadoes · United States · Florida · 2022
EF0 tornado, Rock Harbor, Florida, May 9, 2022
This EF0 tornado ran 0.0 miles across Monroe County on May 9, 2022, touching down at 4:05 PM EDT and reaching 15 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
- May 9, 2022
- Touchdown
- 4:05 PM EDT (20:05 UTC)
- Path length
- 0.0 miles (0.0 km)
- Path width
- 15 yards (14 m)
- Deaths
- 0
- Injuries
- 0
- County
- Monroe County
- Touchdown point
- 25.053, -80.479
- Lift-off point
- 25.053, -80.479
- Record number
- 2205091405-01
What the Weather Service recorded
Showers and thunderstorms developed in an area of convergence near the far upper Florida Keys as outflow from showers and thunderstorms over mainland south Florida moved southward. A waterspout developed and was observed making landfall along the oceanside of a community within Key Largo.
A non-supercell-spawned waterspout was observed to have made landfall on the Atlantic side of Key Largo in the Silver Shores Community. A spray ring was visible with the waterspout prior to landfall. Photos revealed damage to a dock railing and a snapped mature coconut palm tree, but no damage to nearby homes was observed. Based on all available information, the tornado was rated EF-0 with maximum winds of 60 to 70 mph.
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 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
8.1 hours before the tornado, 87 km from the path. May 9, 2022.
- Mixed-layer CAPE
- 222 J/kg
- Mixed-layer CIN
- -319 J/kg
- Surface CAPE
- 239 J/kg
- Mixed-layer LCL
- 1162 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 3.7 K/km
Miami, FL (KMFL), 00:00Z
3.9 hours after it, 87 km from the path. May 10, 2022.
- Mixed-layer CAPE
- 334 J/kg
- Mixed-layer CIN
- -247 J/kg
- Surface CAPE
- 1063 J/kg
- Mixed-layer LCL
- 1038 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.4
- 0-3 km lapse rate
- 5.3 K/km
The surface observations
Homestead Afb (HST), 49 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 18:56 UTC | 84.2 | 71 | 60° 17 kt | 1013.9 | ||
| 19:56 UTC | 84 | 71 | 70° 15 kt | 19 | 1013.2 | |
| 20:42 UTC | 84.2 | 71.6 | 60° 14 kt | 21 | 1013.2 | |
| 20:44 UTC | 84.2 | 71.6 | 50° 13 kt | 21 | 1013.2 | |
| 20:56 UTC | 82 | 71.2 | 60° 14 kt | 1013.2 | ||
| 21:35 UTC | 80.6 | 69.8 | 60° 15 kt | 1013.2 | ||
| 21:56 UTC | 81.7 | 70 | 60° 12 kt | 1013.2 |
From the Iowa Environmental Mesonet's archive of airport observations.
The radar
The Miami radar (KAMX), 62 km away, was scanning. The volume nearest the touchdown began at 20:02 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.
This ground now
The live radar over the trackEvery 2022 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are
The other tornadoes of May 9, 2022
5 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.