Tornadoes · United States · Florida · 1999

F0 tornado, Sebring, Florida, June 4, 1999

This F0 tornado ran 0.3 miles across Highlands County on June 4, 1999, touching down at 7:07 PM EDT. It killed nobody, and did $100,000 of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mphthis tornado

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. F173 to 112 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. F2113 to 157 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. F3158 to 206 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. F4207 to 260 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. F5261 to 318 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
F0
Date
June 4, 1999
Touchdown
7:07 PM EDT (23:07 UTC)
Path length
0.3 miles (0.5 km)
Path width
0 yards (0 m)
Deaths
0
Injuries
0
Property damage
$100,000
County
Highlands County
Touchdown point
27.400, -81.570
Lift-off point
27.400, -81.570
Record number
534

What the Weather Service recorded

The public observed a short lived tornado sporadically touch down near the intersection of West Josephine Road and Bethea Lane over rural extreme western Highlands county. The tornado removed the roofs of two mobile homes, caused extensive damage to the roof of a commercial building, toppled a few large trees and snapped several branches at a commercial tree farm before it lifted and dissipated.

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.

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 19:25 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), 00:00Z

0.9 hours after it, 89 km from the path. June 5, 1999.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 00:00Z on 1999-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 363 joules per kilogram, CIN -78, lifted condensation level 1368 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 1999-06-05The 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 11 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
363 J/kg
Mixed-layer CIN
-78 J/kg
Surface CAPE
1020 J/kg
Mixed-layer LCL
1368 m above ground
0-6 km bulk shear
19 kt
0-1 km bulk shear
8 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
36 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.7 K/km

Open this sounding in Storm Lab

This ground now

The live radar over the trackEvery 1999 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are

The other tornadoes of June 4, 1999

47 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 412:44 AM MDTF0Cherry, NE1.050
June 41:50 AM CDTF0Madison, NE0.020$10,000
June 42:00 AM CDTF0Stanton, NE0.020
June 41:08 AM MDTF0Cherry, NE1.050
June 44:23 PM CDTF0Woodford, IL0.320
June 44:25 PM CDTF1Tazewell, IL2.5200
June 44:30 PM CDTF0Putnam, IL0.110
June 44:45 PM CDTF0Lewis, MO0.550
June 44:45 PM CDTF0Logan, IL0.120
June 44:50 PM CDTF0McLean, IL0.120
June 44:50 PM CDTF0Logan, IL2.51002
June 44:53 PM CDTF0Logan, IL0.120
June 44:56 PM CDTF0McLean, IL0.120
June 45:04 PM CDTF0McLean, IL3.520
June 45:10 PM CDTF0McLean, IL0.120
June 45:13 PM CDTF0McLean, IL2.020
June 45:18 PM CDTF0Macon, IL0.120
June 45:28 PM CDTF0Macon, IL0.120
June 45:35 PM CDTF0Macon, IL0.120
June 45:35 PM CDTF0McLean, IL0.120
June 45:38 PM CDTF0McLean, IL3.520
June 45:38 PM CDTF0Piatt, IL0.120
June 45:48 PM CDTF0Piatt, IL0.120
June 46:13 PM CDTF0Ford, IL0.230
June 46:13 PM CDTF0Champaign, IL0.120
June 45:15 PM MDTF0Sioux, NE0.130
June 46:27 PM CDTF0Champaign, IL0.120
June 45:28 PM MDTF0Dawes, NE0.130
June 47:30 PM CDTF2, SD15.00154$3.2 million
June 48:37 PM EDTF0Worth, GA0.550$2,000
June 47:40 PM CDTF2, SD4.0400
June 48:10 PM CDTF0, SD1.050$20,000
June 48:30 PM CDTF1Stevens, KS0.50$750,000
June 48:30 PM CDTF0Jackson, SD14.00$50,000
June 47:45 PM MDTF0Bennett, SD0.510
June 48:03 PM MDTF0Hooker, NE1.050
June 48:05 PM MDTF0Cherry, NE8.050
June 49:10 PM CDTF2Thomas, NE4.0250$50,000
June 48:22 PM MDTF2Cherry, NE19.0250$50,000
June 48:30 PM MDTF0Cherry, NE2.050$10,000
June 48:35 PM MDTF1Cherry, NE5.050$50,000
June 49:37 PM CDTF0Texas, OK0.10
June 48:55 PM MDTF0Cherry, NE2.050
June 410:10 PM CDTF0Jones, SD3.00
June 411:15 PM CDTF0Brule, SD0.150
June 411:15 PM CDTF0Brule, SD0.150
June 412:10 AM CDTF1Sanborn, SD10.0400$200,000

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.