Tornadoes · United States · Florida · 2014

EF0 tornado, Wewahatee, Florida, March 29, 2014

This EF0 tornado ran 2.4 miles across Orange County on March 29, 2014, touching down at 2:20 PM EDT and reaching 100 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
March 29, 2014
Touchdown
2:20 PM EDT (18:20 UTC)
Lifted
2:23 PM EDT (18:23 UTC)
On the ground
3 minutes
Path length
2.4 miles (3.9 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
0
County
Orange County
Touchdown point
28.389, -81.133
Lift-off point
28.375, -81.170
Record number
1403291220-01

The damage survey

14 damage points were recorded along this path by NWS MLB, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 80 mph.

  • Near the western edge of wind damage. Minor damage on newly planted trees. All trees are new growth trees.
  • Southern edge of minor wind damage on Kirby Smith Road. Small debris in roadway.
  • Northern extent of damage along Kirby Smith Road. Large hardwood tree broken along trunk.
  • Fallen Softwood Tree inside Moss Park near Pavilion 4. Root base did not seem very well developed.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

What the Weather Service recorded

A squall line, preceding a cold front, crossed east-central Florida during the afternoon. A bow echo along the leading edge of the squall line moved rapidly east across southern Orange County. A swath of winds 45-60 mph accompanied the bow echo and produced tree damage along its path. A book-end vortex rapidly evolved at the northern end of the echo, and resulted in an EF-0 tornado within the corridor of straight-line winds. The squall line also produced minor wind damage in Brevard County. Large hail fell in the Sanford area.

A book-end vortex rapidly developed at the northern edge of a bow echo. A NWS Storm Survey confirmed an EF-0 tornado, with estimated ground-level winds of 65-75 mph. The tornado developed at the east edge of Lake Mary Jane (possibly beginning as a waterspout over the lake) and was embedded within a larger region of strong straight-line winds. The tornado impacted three blocks of homes in the Isle of Pines subdivision, then continued into a rural, unpopulated area farther east/northeast. While the homes sustained little direct structural damage from the winds, falling trees damaged several homes and vehicles along the tornado path. Winds at tree top level (50-100 feet above ground level) were estimated at 80-90 mph. Velocity data from the TMCO Orlando International Airport TDWR radar showed winds up of 100 mph at 300 feet above ground level. DI28 DOD 3 LB; DI2 DOD 1 EXP.

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

The warnings

50 minutes of warning. NWS MLB issued a tornado warning for this county at 17:30 UTC, 50 minutes before the tornado touched down, in force until 18:30 UTC.

The county was under a tornado watch, issued at 13:44 UTC and running to 19:23 UTC.

Issued (UTC)ExpiredProductOffice
13:44 UTC19:23 UTCTornado WatchMLB
16:49 UTC17:45 UTCSevere Thunderstorm WarningMLB
17:03 UTC18:00 UTCSevere Thunderstorm WarningMLB
17:07 UTC18:00 UTCSevere Thunderstorm WarningMLB
17:30 UTC18:30 UTCTornado WarningMLB
18:09 UTC19:00 UTCSevere Thunderstorm WarningMLB
18:12 UTC19:15 UTCTornado 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 Slight Risk, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 15:58 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

6.3 hours before the tornado, 64 km from the path. March 29, 2014.

Skew-T log-pSkew-T log-p diagram, Cape Canaveral, FL at 12:00Z on 2014-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 426 joules per kilogram, CIN -36, lifted condensation level 739 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 2014-03-29The 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 248 square meters per square second, 0 to 6 km bulk shear 35 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
426 J/kg
Mixed-layer CIN
-36 J/kg
Surface CAPE
605 J/kg
Mixed-layer LCL
739 m above ground
0-6 km bulk shear
35 kt
0-1 km bulk shear
27 kt
0-1 km storm-relative helicity
248 m²/s²
0-3 km storm-relative helicity
428 m²/s²
Significant tornado parameter
0.5
Supercell composite
2.4
0-3 km lapse rate
5.0 K/km

Open this sounding in Storm Lab

The surface observations

Orlando International (MCO), 16 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
16:53 UTC7969200° 10 kt1014.9
17:25 UTC7870210° 8 kt1014.9-TSRA
17:42 UTC7770230° 9 kt1014.9TSRA
17:53 UTC7570220° 8 kt1014.6-TSRA
18:15 UTC6763300° 21 kt391015.6TS FG
18:28 UTC6865240° 16 kt1016.3TSRA BR
18:33 UTC6865240° 14 kt1016.6-TSRA BR
18:38 UTC6865250° 12 kt201016.3-TSRA BR
18:53 UTC6865250° 11 kt1016.3TSRA BR
19:53 UTC6864220° 9 kt1015.2TSRA BR

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

The radar

The Melbourne radar (KMLB), 57 km away, was scanning. The volume nearest the touchdown began at 18:19 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
18:13 UTCTSTM WND GST 45Orlando International AOrange, FLASOS PEAK WIND GUST OF 39 KT.
18:13 UTCTSTM WND GST 522 Ese DundeePolk, FLMESONET STATION 2 ESE DUNDEE /AR666/
18:15 UTCTSTM WND DMGPoincianaPolk, FL14 POWER POLES BLOWN DOWN ALONG WITH POWERLINES DOWN.
18:15 UTCTSTM WND DMGPoincianaPolk, FL14 POWER POLES LEANING AND WIRES DOWN.
18:15 UTCTSTM WND DMGPoincianaPolk, FLFENCE DAMAGE IN TUSCANY PRESERVE
18:15 UTCTSTM WND DMGPoincianaPolk, FLPOWER POLES LEANING AND WIRES DOWN.
18:15 UTCTSTM WND DMGPoincianaPolk, FLSEMI-TRAILER BLOWN ON ITS SIDE AND SOME FENCE DAMAGE IN TUSCANY PRESERVE
18:20 UTCTSTM WND DMG5 Ese Lake NonaOrange, FLORANGE COUNTY EMERGENCY MANAGEMENT REPORTS POSSIBLE TORNADO DAMAGE IN THE ISLE OF PINES SUBDIVISION NEAR LAKE MARY JANE. MULTIPLE TREES WERE DOWNED, SOME ON HOMES AND SOME ON ROADWAYS, IN THE SUBDIVISION. ALSO REPORTS OF
18:20 UTCTORNADO1 E Lake Mary JaneOrange, FLNWS SURVEY EXTENDED FROM NARCOOSEE ROAD NEAR EAGLE CREEK GOLF CLUB TO MOSS PARK AND EAST OF LAKE MARY JANE. TO THE WEST OF LAKE MARY JANE STRAIGHT LINE WIND DAMAGE EST.45-55 MPH AT GROUND LEVEL WITH MINOR DAMAGE TO FENCE
18:25 UTCTSTM WND GST 544 N Haulover CanalVolusia, FL47 KNOT WIND GUST AT USAF TOWER 22 AT 54 FT.
18:27 UTCTSTM WND GST 45Sanford AirportSeminole, FLASOS PEAK WIND GUST OF 39 KT.
18:28 UTCHAIL 1.25SanfordSeminole, FLSEVERAL PUBLIC REPORTS OF HAIL IN SANFORD UP TO THE SIZE OF HALF DOLLARS. REPORTS VIA SOCIAL MEDIA.
19:00 UTCTSTM WND GST 513 Sse CocoaBrevard, FLUSAF TOWER 9404 MEASURED A GUST TO 44 KT AT 54 FT.
19:10 UTCTSTM WND GST 46Patrick Air Force BaseBrevard, FLTHE PATRICK AIR FORCE BASE ASOS REPORTED A 40-KNOT WIND GUST OUT OF THE WEST.
19:12 UTCTSTM WND GST 482 Nne Cape CanaveralBrevard, FLTHE TRIDENT PIER C-MAN STATION, TRDF1, RECORDED A 42-KNOT WIND GUST OUT OF THE WSW.
19:13 UTCTSTM WND GST 45Melbourne AirportBrevard, FLASOS PEAK WIND GUST OF 39 KT.

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

This ground now

The live radar over the trackEvery 2014 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are

The other tornadoes of March 29, 2014

3 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
March 298:57 PM EDTEF0Wake, NC0.2145$8,000
March 299:08 PM EDTEF0Wake, NC0.175$5,000
March 297:40 PM PDTEF0Butte, CA0.010

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.