Tornadoes · United States · Florida · 2012

EF0 tornado, Yankeetown, Florida, May 29, 2012

This EF0 tornado ran 2.8 miles across Levy County on May 29, 2012, touching down at 2:13 PM EDT and reaching 200 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, 2012
Touchdown
2:13 PM EDT (18:13 UTC)
Lifted
2:17 PM EDT (18:17 UTC)
On the ground
4 minutes
Path length
2.8 miles (4.6 km)
Path width
200 yards (183 m)
Deaths
0
Injuries
0
County
Levy County
Touchdown point
29.035, -82.757
Lift-off point
29.056, -82.717
Record number
1205291213-01

What the Weather Service recorded

The outer bands of Tropical Storm Beryl began to move over west central Florida on the 27th, before the center made landfall near Jacksonville early on the 28th. Beryl then became a tropical depression less than 12 hours later as it curved northward to the Georgia border. Beryl created onshore flow in west central Florida leading to isolated areas of heavy rain and tornadoes.||In Levy county, wind gusts of up to 38 knots with sustained winds of 20 to 25 knots were measured. Rainfall of 1.25 inches was measured at the COOP station at Usher Tower.||In Citrus county, sustained winds of around 20 knots were measured across the county. Rainfall of 3.98 inches was measured at the COOP station at Inverness 3 SE.||In Hernando county, sustained winds of 25 to 30 knots were measured across the county. Rainfall of three to five inches was measured, with 5.00 inches measured at the COOP station at Brooksville - Chin Hill. Radar rainfall estimates were as high as 8 inches in some parts of the county.||In Sumter County, rainfall of 2.83 inches was measured at the COOP site at Bushnell.||In Pasco County, sustained winds of 20 to 25 knots were measured across the county. The COOP site at St. Leo measured 3.31 inches of rain.||In Pinellas County, thunderstorm wind gusts of up to 48 knots, with sustained wind gusts of 20 to 25 knots were measured. Rainfall an inch or more were measured over the northern half of the county, with 1.12 inches measured at the COOP site at Tarpon Springs.||In Hillsborough County, thunderstorm wind gusts of up to 38 knots with sustained winds of around 25 knots were measured across the county. Rainfall of around one inch or more were measured over most of the county, with 1.60 inches measured at the COOP station at Hillsborough River State Park.||In Polk County, thunderstorm wind gusts of up to 40 knots with sustained winds of around 30 knots were measured across the county. The highest rainfall measured was 1.12 inches at the COOP site at Lakeland.||In Manatee County, sustained winds of around 20 knots were measured across the county. Rainfall of over an inch were measured around the county, with 1.86 inches measured at the COOP station at Fort Green 12 WSW.||Over southwest Florida, sustained winds of around 20 knots were measured, with rainfall generally less than one inch were measured.

A large waterspout moved onshore at Hodges Island, then began to dissipate. Damage was limited to trees as the tornado was just north of roads and buildings in this rural area.

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.

Issued (UTC)ExpiredProductOffice
14:19 UTC20:00 UTCFlood WatchTBW

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 16:43 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.

Tampa Bay, FL (KTBW), 12:00Z

6.2 hours before the tornado, 153 km from the path. May 29, 2012.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 12:00Z on 2012-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 407 joules per kilogram, CIN -52, lifted condensation level 943 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, Tampa Bay, FL at 12:00Z on 2012-05-29The 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 61 square meters per square second, 0 to 6 km bulk shear 14 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
407 J/kg
Mixed-layer CIN
-52 J/kg
Surface CAPE
1281 J/kg
Mixed-layer LCL
943 m above ground
0-6 km bulk shear
14 kt
0-1 km bulk shear
23 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
66 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

Tampa Bay, FL (KTBW), 00:00Z

5.8 hours after it, 153 km from the path. May 30, 2012.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 00:00Z on 2012-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1248 joules per kilogram, CIN -6, lifted condensation level 768 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, Tampa Bay, FL at 00:00Z on 2012-05-30The 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 102 square meters per square second, 0 to 6 km bulk shear 19 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
1248 J/kg
Mixed-layer CIN
-6 J/kg
Surface CAPE
2191 J/kg
Mixed-layer LCL
768 m above ground
0-6 km bulk shear
19 kt
0-1 km bulk shear
18 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
121 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
6.1 K/km

Open this sounding in Storm Lab

The surface observations

Crystal River (CGC), 26 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
16:15 UTC73.471.6250° 13 kt221013.5+TSRA
16:35 UTC71.671.6250° 8 kt151013.2TSRA
16:55 UTC71.671.6240° 3 kt1013.2TSRA
17:15 UTC71.671.60° 0 kt1012.9TSRA
17:35 UTC71.671.60° 0 kt1012.9TSRA
17:55 UTC71.671.60° 0 kt1012.5-TSRA
18:15 UTC71.671.6200° 3 kt1012.5-VCTSRA
18:35 UTC73.471.60° 0 kt1011.9
18:55 UTC73.471.6220° 4 kt1011.9
19:15 UTC73.471.6210° 5 kt1011.9
19:35 UTC73.471.6210° 4 kt1011.9
19:55 UTC73.471.6220° 5 kt1011.2

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

The radar

The Tampa radar (KTBW), 153 km away, was scanning. The volume nearest the touchdown began at 18:11 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.

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 May 29, 2012

4 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 293:25 PM EDTEF0Orleans, VT0.3100$10,000
May 298:26 PM CDTEF1Canadian, OK1.030$5,000
May 2910:03 PM EDTEF1Orangeburg, SC1.560$20,000
May 299:15 PM CDTEF0Canadian, OK1.030

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.