Tornadoes · United States · Florida · 2016

EF0 tornado, Sunniland, Florida, February 16, 2016

This EF0 tornado ran 4.0 miles across Collier County on February 16, 2016, touching down at 5:10 AM EST and reaching 10 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
February 16, 2016
Touchdown
5:10 AM EST (10:10 UTC)
Lifted
5:17 AM EST (10:17 UTC)
On the ground
7 minutes
Path length
4.0 miles (6.4 km)
Path width
10 yards (9 m)
Deaths
0
Injuries
0
County
Collier County
Touchdown point
26.220, -81.180
Lift-off point
26.240, -81.120
Record number
1602160410-01

What the Weather Service recorded

A strong squall line intensified well ahead of a cold front over the eastern Gulf of Mexico during the early morning hours of February 16th. The line produced straight line wind damage near Naples as it moved onshore, along with tornadoes in Glades and Collier counties. Three additional tornadoes developed across the east coast metro in Broward and Miami-Dade counties, as the squall line interacted with the southeasterly flow along the coast. In addition to the tornadoes, straight line wind gusts of 60 to 70 mph were reported across eastern Palm Beach and Broward counties, producing damage in Fort Lauderdale, West Palm Beach, Pembroke Pines, and Miramar. Small hail was also reported in Davie and Sunrise with a tornadic storm.

FHP officer travelling eastbound on I-75 reported a tornado touchdown north of the highway around mile marker 70 at 510 am. The officer lost site of the tornado at mile marker 66 at 517 am as it continued to travel northeast away from the interstate.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

12 minutes of warning. NWS MFL issued a tornado warning for this county at 09:58 UTC, 12 minutes before the tornado touched down, in force until 10:30 UTC.

The county was under a tornado watch, issued at 07:19 UTC and running to 12:31 UTC.

Issued (UTC)ExpiredProductOffice
07:19 UTC12:31 UTCTornado WatchMFL
09:00 UTC09:30 UTCTornado WarningMFL
09:17 UTC10:00 UTCSevere Thunderstorm WarningMFL
09:29 UTC10:00 UTCTornado WarningMFL
09:58 UTC10:30 UTCTornado WarningMFL

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 05:24 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

10.2 hours before the tornado, 97 km from the path. February 16, 2016.

Skew-T log-pSkew-T log-p diagram, Miami, FL at 00:00Z on 2016-02-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 636 joules per kilogram, CIN -1, lifted condensation level 603 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 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 2016-02-16The 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 140 square meters per square second, 0 to 6 km bulk shear 39 knots.1939587897Sfc1 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
636 J/kg
Mixed-layer CIN
-1 J/kg
Surface CAPE
775 J/kg
Mixed-layer LCL
603 m above ground
0-6 km bulk shear
39 kt
0-1 km bulk shear
25 kt
0-1 km storm-relative helicity
140 m²/s²
0-3 km storm-relative helicity
276 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3
0-3 km lapse rate
5.7 K/km

Open this sounding in Storm Lab

Miami, FL (KMFL), 12:00Z

1.8 hours after it, 97 km from the path. February 16, 2016.

Skew-T log-pSkew-T log-p diagram, Miami, FL at 12:00Z on 2016-02-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1201 joules per kilogram, CIN -4, lifted condensation level 668 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 2016-02-16The 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 271 square meters per square second, 0 to 6 km bulk shear 61 knots.1939587897117Sfc1 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
1201 J/kg
Mixed-layer CIN
-4 J/kg
Surface CAPE
1458 J/kg
Mixed-layer LCL
668 m above ground
0-6 km bulk shear
61 kt
0-1 km bulk shear
25 kt
0-1 km storm-relative helicity
271 m²/s²
0-3 km storm-relative helicity
383 m²/s²
Significant tornado parameter
2.1
Supercell composite
8.6
0-3 km lapse rate
6.3 K/km

Open this sounding in Storm Lab

The radar

The Miami radar (KAMX), 101 km away, was scanning. The volume nearest the touchdown began at 10:09 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
09:14 UTCTSTM WND DMG1 E Belle MeadeCollier, FLSEVERAL MOBILE HOME CARPORTS DAMAGED ALONG AMETHYST AVENUE IN THE ENCHANTING SHORES CO-OP PARK. AN ADDITIONAL MOBILE HOME IN THE NEIGHBORHOOD SUFFERED DAMAGE TO ITS ROOF. TIME ESTIMATED FROM RADAR.
10:10 UTCTORNADO10 Ese SunnilandCollier, FLFHP OFFICER HEADED EASTBOUND ON I-75 REPORTED A TORNADO TOUCHDOWN NORTH OF THE HIGHWAY AROUND MILE MARKER 70 AT 510AM. THE OFFICER LOST SITE OF THE TORNADO AT MILE MARKER 66 AT 517AM AS IT CONTINUED TO TRAVEL NORTHEAST A
10:10 UTCTORNADO9 E Miles CityCollier, FLFHP OFFICER HEADED EASTBOUND ON I-75 REPORTED A TORNADO TOUCHDOWN NORTH OF THE HIGHWAY AROUND MILE MARKER 70 AT 510AM. THE OFFICER LOST SITE OF THE TORNADO AT MILE MARKER 66 AT 517AM AS IT CONTINUED TO TRAVEL NORTHEAST A

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

This ground now

The live radar over the trackEvery 2016 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are

The other tornadoes of February 16, 2016

6 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
February 164:49 AM ESTEF1Glades, FL1.875
February 167:05 AM ESTEF0Broward, FL6.750
February 167:10 AM ESTEF1Broward, FL3.550$160,000
February 167:34 AM ESTEF0Broward, FL1.950
February 167:51 AM ESTEF1Miami-Dade, FL3.8150
February 168:51 AM ESTEF1Carteret, NC4.2167$100,000

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.