Tornadoes · United States · Florida · 2018

EF0 tornado, Leisure City, Florida, May 29, 2018

This EF0 tornado ran 0.3 miles across Miami-Dade County on May 29, 2018, touching down at 8:00 PM EDT and reaching 25 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.

  1. EF065 to 85 mphthis tornado

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. EF186 to 110 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. 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.

  4. 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.

  5. EF4166 to 200 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. 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.

  7. 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 29, 2018
Touchdown
8:00 PM EDT (00:00 UTC)
Lifted
8:03 PM EDT (00:03 UTC)
On the ground
3 minutes
Path length
0.3 miles (0.5 km)
Path width
25 yards (23 m)
Deaths
0
Injuries
0
County
Miami-Dade County
Touchdown point
25.491, -80.450
Lift-off point
25.496, -80.450
Record number
1805291800-01

The damage survey

4 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 65 mph.

  • Damage was mostly outdoor items knocked over and a few small trees knocked over.
  • Several large tree limbs broken
  • Large limb broken off a tree. Several other limbs down in the area were already picked up by maintenance crew.
  • Aluminum material lifted up on a large carport behind Enterprise Car Rental

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 trough over the Gulf of Mexico and high pressure over the Atlantic pumped plenty of moisture in South Florida. This allowed showers and thunderstorms to develop across the region. Some low-level convergence with modest helicity levels were enough to spin up a tornado and produce a funnel cloud over the east coast metro regions of South Florida.

A brief tornado touched down in the Homestead area. Minor tree and property damage occurred during a path from the 15900 block of SW 296th street north to US-1 near SW 290th Street. Minor property and tree damage occurred around 8 PM EDT at a residence on SW 296th Street. Tree damage continued in the Redland Migrant Center. Finally, behind a car rental facility on US-1 there was minor aluminum damage to a carport.

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 19:58 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.

Miami, FL (KMFL), 00:00Z

0.0 hours before the tornado, 40 km from the path. May 30, 2018.

Skew-T log-pSkew-T log-p diagram, Miami, FL at 00:00Z on 2018-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1300 joules per kilogram, CIN -2, lifted condensation level 656 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Miami, FL at 00:00Z on 2018-05-30The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 76 square meters per square second, 0 to 6 km bulk shear 26 knots.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
1300 J/kg
Mixed-layer CIN
-2 J/kg
Surface CAPE
1685 J/kg
Mixed-layer LCL
656 m above ground
0-6 km bulk shear
26 kt
0-1 km bulk shear
15 kt
0-1 km storm-relative helicity
76 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.9
0-3 km lapse rate
6.1 K/km

Open this sounding in Storm Lab

Miami, FL (KMFL), 12:00Z

12.0 hours after it, 40 km from the path. May 30, 2018.

Skew-T log-pSkew-T log-p diagram, Miami, FL at 12:00Z on 2018-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1317 joules per kilogram, CIN -7, lifted condensation level 720 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Miami, FL at 12:00Z on 2018-05-30The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 135 square meters per square second, 0 to 6 km bulk shear 23 knots.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
1317 J/kg
Mixed-layer CIN
-7 J/kg
Surface CAPE
2993 J/kg
Mixed-layer LCL
720 m above ground
0-6 km bulk shear
23 kt
0-1 km bulk shear
19 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
0.5
Supercell composite
5.0
0-3 km lapse rate
6.0 K/km

Open this sounding in Storm Lab

The radar

The Miami radar (KAMX), 13 km away, was scanning. The volume nearest the touchdown began at 00:05 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)ReportWhereCountyRemark
23:55 UTCTSTM WND DMG2 Ne HomesteadMiami-Dade, FLWSVN SHARED VIEWER REPORT OF TREE DAMAGE ALONG SW 296TH ST NEAR US-1 IN HOMESTEAD. EXAMINATION OF THE VIDEO AND RADAR DETERMINED THAT THE TREE DAMAGE OCCURRED FROM AN OUTFLOW BOUNDARY FROM A THUNDERSTORM TO THE NORTHWEST
00:00 UTCTORNADO2 Ne HomesteadMiami-Dade, FLWSVN SHARED VIEWER REPORT OF TREE DAMAGE ALONG SW 296TH ST NEAR US-1 IN HOMESTEAD. EXAMINATION OF THE VIDEO AND RADAR AND A NWS STORM SURVEY DETERMINED THAT THE TREE DAMAGE OCCURRED FROM A BRIEF TORNADO. SEE PUBLIC INFOR
00:05 UTCFUNNEL CLOUD3 Sw Florida CityMiami-Dade, FLPUBLIC REPORTED A FUNNEL CLOUD ASSOCIATED WITH A SHOWER IN THE FLORIDA CITY AREA AROUND 805PM.
00:30 UTCTSTM WND DMG2 Ne HomesteadMiami-Dade, FLWSVN SHARED VIEWER REPORT OF TREE DAMAGE ALONG SW 296TH ST NEAR US-1 IN HOMESTEAD. EXAMINATION OF THE VIDEO AND RADAR DETERMINED THAT THE TREE DAMAGE OCCURRED FROM AN OUTFLOW BOUNDARY FROM A THUNDERSTORM TO THE NORTHWEST

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2018 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are

The other tornadoes of May 29, 2018

6 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 293:58 PM CDTEF0Story, IA0.330
May 294:44 PM CDTEF0Gray, KS4.1100
May 295:36 PM CDTEF0Gray, TX0.150
May 296:09 PM CDTEF0Wheeler, TX0.150
May 297:25 PM CDTEF1Woods, OK2.520$10,000
May 298:12 PM CDTEF0Republic, KS0.330

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.