Tornadoes · United States · Florida · 2012

EF0 tornado, Vero Beach Airpark, Florida, August 27, 2012

This EF0 tornado ran 1.6 miles across Indian River County on August 27, 2012, touching down at 12:03 PM EDT and reaching 180 yards wide. It killed nobody, and did $500,000 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
August 27, 2012
Touchdown
12:03 PM EDT (16:03 UTC)
Lifted
12:05 PM EDT (16:05 UTC)
On the ground
2 minutes
Path length
1.6 miles (2.6 km)
Path width
180 yards (165 m)
Deaths
0
Injuries
0
Property damage
$500,000
County
Indian River County
Touchdown point
27.626, -80.496
Lift-off point
27.647, -80.507
Record number
1208271003-01

What the Weather Service recorded

Tropical Storm Isaac passed southwest of east-central Florida, making its closest approach during the late afternoon and evening hours of August 26. Two tornadoes developed during the morning of August 27 and several tropical storm force wind gusts were observed. County-averaged rainfall amounts over the 2-day period were as high as 10-12 inches within Okeechobee, Martin, St. Lucie and Indian River Counties, with isolated totals of 14-17 inches. A majority of the heavy rain fell from early morning through late afternoon of August 27, when flooding resulted in numerous, temporary road closures. Water entered many homes in Okeechobee and Indian River Counties due to over-topping of local creeks/canals and overwhelming of drainage systems.

An EF0 tornado touched down just southeast of Indian River County Fire Station number 7 on 12th Street in Vero Beach. A discontinuous path of damage stretched 1.6 miles through the Vero Beach Estates and Countryside Village Mobile Home Parks, crossed State Road 60, and lifted just north of the Paradise Park residential area. A total of 95 structures (mostly mobile homes) were damaged, with 62 receiving minor damage and 33 sustaining major damage due to wind and rain. There were several short locations along the path were damage was minimal or non-evident. DI2 DOD4 LB; DI3 DOD4 LB-EXP, DI4 DOD7 LB.

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. One was issued for the county at another hour that day.

Issued (UTC)ExpiredProductOffice
03:25 UTC15:00 UTCTornado WatchMLB
03:31 UTC00:00 UTCWind AdvisoryMLB
03:34 UTC00:00 UTCHigh Surf AdvisoryMLB
05:01 UTC07:00 UTCFlood AdvisoryMLB
11:06 UTC13:00 UTCFlood AdvisoryMLB
13:00 UTC16:00 UTCFlood AdvisoryMLB
15:07 UTC17:00 UTCFlood AdvisoryMLB
16:15 UTC16:50 UTCTornado WarningMLB
16:53 UTC18:00 UTCFlood WarningMLB
18:00 UTC20:00 UTCFlood WarningMLB
20:00 UTC22:00 UTCFlood WarningMLB

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, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 12:50 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

4.1 hours before the tornado, 93 km from the path. August 27, 2012.

Skew-T log-pSkew-T log-p diagram, Cape Canaveral, FL at 12:00Z on 2012-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -23172, lifted condensation level 691 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 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 2012-08-27The 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 -35 square meters per square second, 0 to 6 km bulk shear 11 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
0 J/kg
Mixed-layer CIN
-23172 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
691 m above ground
0-6 km bulk shear
11 kt
0-1 km bulk shear
12 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
-28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.2 K/km

Open this sounding in Storm Lab

The surface observations

Vero Beach (VRB), 8 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
14:48 UTC82.475.2140° 16 kt251011.9
14:53 UTC8275130° 17 kt251011.9-RA
15:12 UTC78.873.4170° 22 kt371012.9+RA BR
15:18 UTC75.273.4190° 13 kt371012.5+RA BR
15:33 UTC75.273.4170° 12 kt261013.2RA BR
15:51 UTC75.273.4120° 14 kt191013.2TS BR
15:53 UTC7574150° 16 kt201013.2TS BR
16:02 UTC75.273.4160° 12 kt181013.2TS FG
16:36 UTC75.275.2 6 kt1012.5+TSRA
16:45 UTC75.273.4170° 16 kt271012.9+TSRA
16:53 UTC7574150° 23 kt311012.9+TSRA
17:00 UTC75.273.4150° 23 kt351012.9+TSRA
17:09 UTC75.273.4170° 18 kt331012.9+TSRA
17:17 UTC75.273.4160° 13 kt231012.5TSRA
17:20 UTC75.273.4170° 18 kt251012.9TSRA
17:25 UTC75.273.4160° 20 kt261012.9+TSRA
17:36 UTC75.273.4160° 22 kt301012.5+TSRA
17:48 UTC75.273.4150° 14 kt251012.2+TSRA
17:53 UTC7573150° 15 kt1011.9+TSRA

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

The radar

The Melbourne radar (KMLB), 55 km away, was scanning. The volume nearest the touchdown began at 16:02 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.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
15:03 UTCTORNADO5 W Vero BeachIndian River, FLF-0 TORNADO TOUCHED DOWN AT 1103AM JUST SOUTHEAST OF FIRE STATION 7 ON 12TH ST NEAR 82ND AVE, MOVED RAPIDLY NNW IMPACTING VERO PALM ESTATES, COUNTRYSIDE MOBILE HOME PARK AND PARADISE PARK LIFTING NEAR 86TH AVE AND 26TH S
15:04 UTCTSTM WND DMG1 Wsw Paradise ParkIndian River, FLPRELIMINARY REPORTS OF MINOR TO MODERATE DAMAGE TO APPROXIMATELY 20 MOBILE HOMES NEAR HIGHWAY 60, BETWEEN 82ND AVENUE AND 90TH AVENUE.

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

This ground now

The live radar over the trackEvery 2012 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are

The other tornadoes of August 27, 2012

2 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 273:09 AM EDTEF0Osceola, FL0.830$15,000
August 274:44 PM EDTEF0Hillsborough, FL0.020$2,000

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.