Tornadoes · United States · Florida · 2016

EF0 tornado, Micco to Grant, Florida, September 13, 2016

From Micco to Grant, this EF0 tornado ran 3.5 miles across Brevard County on September 13, 2016, touching down at 1:51 PM EDT and reaching 250 yards wide. It killed nobody, and did $40,000 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.

  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
September 13, 2016
Touchdown
1:51 PM EDT (17:51 UTC)
Lifted
1:59 PM EDT (17:59 UTC)
On the ground
8 minutes
Path length
3.5 miles (5.6 km)
Path width
250 yards (229 m)
Deaths
0
Injuries
0
Property damage
$40,000
County
Brevard County
Touchdown point
27.863, -80.549
Lift-off point
27.913, -80.544
Record number
1609131151-01

What the Weather Service recorded

A tropical disturbance, with a well-defined surface circulation, moved onshore near Vero Beach during the early morning hours, then lifted northward along the coast to Volusia County (and beyond) through the evening. By late evening, the system was upgraded to Tropical Storm Julia, as it approached Jacksonville. A rainband associated with the system spawned an EF-0 tornado in southern Brevard County during the early afternoon, resulting in damage to a few residences. Other passing rainbands, produced strong wind gusts along the coast of Brevard and Volusia Counties, one of which resulted in damage to a home in Edgewater. A funnel cloud was also sighted in Lake County.

An eyewitness report documented the onset of the tornado within the St. Sebastian River Preserve State Park, south of Micco Road and west of the town of Micco, in far southern Brevard County. Based on results from a NWS damage survey and other eyewitness reports (including photographs), the tornado moved in a northerly direction for approximately 3.5 miles before lifting south of Grant Road. The tornado was rated as an EF-0, with maximum winds estimated at 75-85 mph.||The discontinuous damage path occurred within a mostly rural area within the town of Grant-Valkaria, with damage to a two block area that included Orchid Tree Drive, Cottonwood Drive and Crepe Myrtle Drive. An RV at the south end of Cottonwood Drive was toppled onto its side and a large mango tree was uprooted. Farther north, toward the middle of Orchid Tree Drive, a single family home had a large patio enclosure destroyed. The patio was connected securely to the home, resulting in a large portion of the home's roof also being removed. Debris was carried downstream over 100 yards in a northwest direction. A few additional homes nearby experienced minor soft and shingle damage. Numerous large tree branches were downed or damaged throughout the neighborhood. DI2, DOD4 LB; DI3, DOD5 LB; DI27, DOD2, EXP.

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

The warnings

1 minute of warning. NWS MLB issued a tornado warning for this county at 17:50 UTC, 1 minute before the tornado touched down, in force until 18:15 UTC.

Issued (UTC)ExpiredProductOffice
17:50 UTC18:15 UTCTornado WarningMLB
19:03 UTC21:00 UTCFlood AdvisoryMLB

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 16:29 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.

Cape Canaveral, FL (KXMR), 12:00Z

5.9 hours before the tornado, 65 km from the path. September 13, 2016.

Skew-T log-pSkew-T log-p diagram, Cape Canaveral, FL at 12:00Z on 2016-09-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1339 joules per kilogram, CIN -3, lifted condensation level 645 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, Cape Canaveral, FL at 12:00Z on 2016-09-13The 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 74 square meters per square second, 0 to 6 km bulk shear 16 knots.1939Sfc1 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
1339 J/kg
Mixed-layer CIN
-3 J/kg
Surface CAPE
2869 J/kg
Mixed-layer LCL
645 m above ground
0-6 km bulk shear
16 kt
0-1 km bulk shear
20 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.0 K/km

Open this sounding in Storm Lab

Cape Canaveral, FL (KXMR), 00:00Z

6.1 hours after it, 65 km from the path. September 14, 2016.

Skew-T log-pSkew-T log-p diagram, Cape Canaveral, FL at 00:00Z on 2016-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1521 joules per kilogram, CIN -6, lifted condensation level 655 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, Cape Canaveral, FL at 00:00Z on 2016-09-14The 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 65 square meters per square second, 0 to 6 km bulk shear 20 knots.1939Sfc1 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
1521 J/kg
Mixed-layer CIN
-6 J/kg
Surface CAPE
2980 J/kg
Mixed-layer LCL
655 m above ground
0-6 km bulk shear
20 kt
0-1 km bulk shear
24 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.5 K/km

Open this sounding in Storm Lab

The surface observations

Melbourne Regional (MLB), 26 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
15:53 UTC8078170° 10 kt1015.2-RA
15:55 UTC170° 11 kt1015.2-RA
16:00 UTC170° 13 kt1015.2-RA BR
16:05 UTC180° 11 kt1015.2-RA BR
16:10 UTC170° 10 kt1015.2-RA
16:15 UTC190° 10 kt1015.2
16:20 UTC170° 10 kt1015.2
16:25 UTC180° 9 kt1014.9
16:30 UTC180° 11 kt161014.9
16:35 UTC170° 11 kt1014.9
16:40 UTC160° 11 kt1014.9
16:45 UTC160° 13 kt1014.9
16:50 UTC170° 11 kt1014.9
16:53 UTC8479170° 13 kt1014.6
16:55 UTC170° 10 kt1014.6
17:00 UTC180° 10 kt1014.6
17:01 UTC8478180° 11 kt1014.6
17:05 UTC160° 8 kt1014.6
17:10 UTC160° 8 kt1014.9
17:15 UTC180° 8 kt1014.6
17:20 UTC160° 14 kt1014.6
17:25 UTC140° 14 kt191014.6
17:30 UTC150° 18 kt231014.6
17:35 UTC130° 16 kt1014.6
17:40 UTC160° 16 kt1014.9
17:45 UTC140° 13 kt1014.9-RA BR
17:49 UTC78.875.2150° 13 kt1014.9+RA BR
17:50 UTC130° 11 kt1014.9+RA BR
17:53 UTC7877150° 8 kt151014.6+RA BR
17:55 UTC130° 13 kt181014.6+RA BR
17:58 UTC7978140° 15 kt181014.6VCTS +RA BR
18:00 UTC140° 14 kt1014.6+RA BR
18:05 UTC140° 13 kt1014.6-RA BR
18:06 UTC7978140° 13 kt1014.6VCTS -RA BR
18:10 UTC150° 15 kt1014.6
18:15 UTC130° 15 kt1014.6
18:19 UTC7978130° 14 kt241014.6VCTS -RA
18:20 UTC130° 12 kt1014.6-RA
18:25 UTC130° 13 kt1014.6+RA BR
18:27 UTC7878130° 13 kt221014.6VCTS +RA BR
18:30 UTC130° 9 kt1014.6+RA BR
18:35 UTC7877140° 9 kt1014.9VCTS +RA BR
18:40 UTC130° 12 kt1014.9+RA BR
18:45 UTC130° 14 kt1014.6+RA BR
18:50 UTC120° 12 kt1014.6+RA BR
18:53 UTC7877130° 7 kt221014.6VCTS +RA BR
18:55 UTC120° 8 kt1014.6+RA BR
19:00 UTC120° 11 kt1014.6+RA BR
19:05 UTC150° 10 kt1014.9+RA FG
19:08 UTC7776110° 10 kt1014.6+TSRA FG
19:10 UTC120° 9 kt1014.6+RA FG
19:15 UTC190° 3 kt1014.6+RA FG
19:20 UTC7676 4 kt1014.2+TSRA FG
19:25 UTC190° 4 kt1014.2+RA FG
19:30 UTC7676130° 4 kt1014.2+TSRA FG
19:35 UTC120° 6 kt1013.9+RA FG
19:38 UTC7776100° 6 kt1013.9+TSRA BR
19:40 UTC90° 5 kt1013.9RA BR
19:44 UTC777780° 5 kt1013.5-TSRA BR
19:45 UTC 1013.2RA BR
19:50 UTC230° 11 kt1013.9-RA BR

From the Iowa Environmental Mesonet's archive of airport observations.

The radar

The Melbourne radar (KMLB), 27 km away, was scanning. The volume nearest the touchdown began at 17:52 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
17:52 UTCTORNADO1 Sw Barefoot BayBrevard, FLTORNADO REPORTED SOUTHWEST OF MICCO ROAD EAST OF INTERSTATE 95.
17:58 UTCTORNADO1 Wnw Barefoot BayBrevard, FLPRIVATE METEOROLOGIST REPORTS TORNADO WEST OF BAREFOOT BAY.
19:26 UTCTSTM WND GST 0Patrick Airforce BaseBrevard, FLPATRICK AFB ASOS MEASURED A WIND GUST OF 40 MPH/34 KT FROM THE SSE.
19:26 UTCTSTM WND GST 40Patrick Airforce BaseBrevard, FLCORRECTED...PATRICK AFB ASOS MEASURED A WIND GUST OF 40 MPH/35 KT FROM THE SSE.

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

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.