Tornadoes · United States · Florida · 2011

EF2 tornado, Davie, Florida, October 18, 2011

This EF2 tornado ran 1.1 miles across Broward County on October 18, 2011, touching down at 10:07 PM EDT and reaching 125 yards wide. It killed nobody, and did $4.0 million 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 mph

    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 mphthis tornado

    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
EF2
Date
October 18, 2011
Touchdown
10:07 PM EDT (02:07 UTC)
Lifted
10:10 PM EDT (02:10 UTC)
On the ground
3 minutes
Path length
1.1 miles (1.8 km)
Path width
125 yards (114 m)
Deaths
0
Injuries
0
Property damage
$4.0 million
County
Broward County
Touchdown point
26.123, -80.329
Lift-off point
26.139, -80.326
Record number
1110182007-01

What the Weather Service recorded

Strong southerly wind flow ahead of low pressure over the Gulf of Mexico created very unstable atmospheric conditions along with high levels of wind shear over South Florida and the adjacent Gulf waters. These conditions were quite favorable for the formation of waterspout and tornadoes.

A strong tornado rated as an EF-2 with maximum estimated winds of 125 mph moved across western portions of Plantation and Sunrise on the evening of October 18th. A total of 136 structures suffered damage, with about 20-25 of these sustaining significant to severe damage. A few mobile homes in the Plantation section of the tornado were destroyed with roof and wall collapse. The tornado intensified as it moved into Sunrise, damaging homes in the New Orleans Homes subdivision. Two concrete block homes sustained significant to total roof loss, and several other homes had significant roof, garage and window damage. Cars were damaged by winds and debris as well as uprooted and sheared trees. ||Most of the damage was in the EF-1 range, except for a two-block area of EF-2 damage in Sunrise at the New Orleans Homes subdivision where the highest winds were noted.||Despite the magnitude and extent of the damage, no major injuries were reported with only a few scrapes and cuts. Federal assistance was approved for residents in the affected area due to the severity and magnitude of the damage.

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

The warnings

23 minutes of warning. NWS MFL issued a tornado warning for this county at 01:44 UTC, 23 minutes before the tornado touched down, in force until 02:15 UTC.

The county was under a tornado watch, issued at 02:03 UTC and running to 08:16 UTC.

Issued (UTC)ExpiredProductOffice
18:33 UTC02:00 UTCTornado WatchMFL
18:49 UTC02:09 UTCFlood WatchMFL
01:44 UTC02:15 UTCTornado WarningMFL
02:03 UTC08:16 UTCTornado WatchMFL
02:12 UTC02:21 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 Slight Risk, with a 0.10 chance of a tornado within 25 miles. The outlook in force was issued at 01:00 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

2.1 hours before the tornado, 35 km from the path. October 19, 2011.

Skew-T log-pSkew-T log-p diagram, Miami, FL at 00:00Z on 2011-10-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 3389 joules per kilogram, CIN -1, lifted condensation level 454 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 2011-10-19The 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 351 square meters per square second, 0 to 6 km bulk shear 47 knots.19395878Sfc1 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
3389 J/kg
Mixed-layer CIN
-1 J/kg
Surface CAPE
2669 J/kg
Mixed-layer LCL
454 m above ground
0-6 km bulk shear
47 kt
0-1 km bulk shear
40 kt
0-1 km storm-relative helicity
351 m²/s²
0-3 km storm-relative helicity
417 m²/s²
Significant tornado parameter
7.8
Supercell composite
32.0
0-3 km lapse rate
5.0 K/km

Open this sounding in Storm Lab

Miami, FL (KMFL), 12:00Z

9.9 hours after it, 35 km from the path. October 19, 2011.

Skew-T log-pSkew-T log-p diagram, Miami, FL at 12:00Z on 2011-10-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 3298 joules per kilogram, CIN -7, lifted condensation level 571 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 2011-10-19The 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 159 square meters per square second, 0 to 6 km bulk shear 34 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
3298 J/kg
Mixed-layer CIN
-7 J/kg
Surface CAPE
3431 J/kg
Mixed-layer LCL
571 m above ground
0-6 km bulk shear
34 kt
0-1 km bulk shear
32 kt
0-1 km storm-relative helicity
159 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
2.1
Supercell composite
10.1
0-3 km lapse rate
4.5 K/km

Open this sounding in Storm Lab

The radar

The Miami radar (KAMX), 58 km away, was scanning. The volume nearest the touchdown began at 02:08 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
02:07 UTCTORNADO3 Nnw DavieBroward, FLEF-2 TORNADO CONFIRMED BY NWS SURVEY IN SUNRISE/PLANTAION AREA WITH MAX WINDS OF 120 MPH. PATH LENGTH 1.11 MILES WITH A MAX WIDTH OF 125 YARDS. UP TO 50 HOMES DAMAGED, AND AT LEAST A DOZEN HOMES WITH SIGNIFICANT TO SEVER
02:07 UTCTORNADOSawgrass Mills MallBroward, FLBROADCAST MEDIA RELAYED SEVERAL REPORTS OF POSSIBLE TORNADO DAMAGE IN SUNRISE NEAR THE SAWGRASS MILLS MALL. ROOFS OFF HOMES WITH 2 PEOPLE REPORTEDLY TRAPPED IN DAMAGED HOMES. TREES ALSO DOWNED. WEATHER EVENT CLASSIFICATI

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

This ground now

The live radar over the trackEvery 2011 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are

The other tornadoes of October 18, 2011

4 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
October 187:25 PM EDTEF0Glades, FL1.050$50,000
October 187:55 PM EDTEF0Glades, FL1.950
October 189:20 PM EDTEF0Martin, FL0.3100$207,000
October 189:30 PM EDTEF0Indian River, FL0.175$24,000

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.