Tornadoes · United States · Florida · 1996

F2 tornado, Tampa, Florida, December 7, 1996

This F2 tornado ran 2.0 miles across Hillsborough County on December 7, 1996, touching down at 2:58 PM EST and reaching 83 yards wide. It killed 1 person, 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 mph

    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 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. 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
F2
Date
December 7, 1996
Touchdown
2:58 PM EST (19:58 UTC)
Path length
2.0 miles (3.2 km)
Path width
83 yards (76 m)
Deaths
1
Injuries
0
Property damage
$100,000
County
Hillsborough County
Touchdown point
27.830, -82.300
Lift-off point
27.830, -82.300
Record number
980

What the Weather Service recorded

A short-lived but strong tornado touched down one eighth of a mile east of Interstate 75 and one half mile north of Big Bend Road in Riverview where it snapped a dozen tree tops. The tornado moved east and descended into the Cowley Cove mobile home complex where it widened to 250 feet and damaged nine mobile homes and snapped an additional dozen trees.Three mobile homes were completely leveled, two were severely damaged, one moderately damaged and three incurred minor damage, all on Cowley Cove Court. One human fatality, a 50 year old male, and three dogs, occurred when the occupants mobile home was lifted up by the tornadic winds and tossed nearly a 100 feet from its foundation where it disentegrated on impact. At least five parked vehicles where damaged by the tornado along with several sheds and outbuildings. Most of the damage occurred along a 3/16 mile path in the Cowley Cove mobile home complex before it lifted, moved east and sporatically touched down in rural southern Hillsborough county. The tornado dissipated nearly two miles east of it's initial touchdown north of Dixon Drive.Of note, a parked undrivable vehicle that was in the direct path of the tornado had most of it's contents sucked from the hatchback storage compartment including a removed 100 pound transmission.Inspection of the vehicle found that the hatchback skin was buckled, bowed and pushed outward from the inside of the vehicle by the transmission casing that eventually smashed upward and out through the rear hatchback window.

The deaths

1 direct deaths are recorded for this tornado, each with what Storm Data knows of it.

AgeSexWhereKind
50MMobile/Trailer HomeDirect

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

The forecast that day

The Storm Prediction Center had this point in a General Thunderstorms Risk. The outlook in force was issued at 12:37 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

8.0 hours before the tornado, 17 km from the path. December 7, 1996.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 12:00Z on 1996-12-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 205 joules per kilogram, CIN -33, lifted condensation level 800 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 12:00Z on 1996-12-07The 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 105 square meters per square second, 0 to 6 km bulk shear 52 knots.1939587897Sfc1 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
205 J/kg
Mixed-layer CIN
-33 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
800 m above ground
0-6 km bulk shear
52 kt
0-1 km bulk shear
12 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2
0-3 km lapse rate
3.8 K/km

Open this sounding in Storm Lab

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

4.0 hours after it, 17 km from the path. December 8, 1996.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 00:00Z on 1996-12-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 223 joules per kilogram, CIN -31, lifted condensation level 797 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 1996-12-08The 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 66 square meters per square second, 0 to 6 km bulk shear 43 knots.1939587897Sfc1 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
223 J/kg
Mixed-layer CIN
-31 J/kg
Surface CAPE
52 J/kg
Mixed-layer LCL
797 m above ground
0-6 km bulk shear
43 kt
0-1 km bulk shear
10 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
120 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7
0-3 km lapse rate
4.3 K/km

Open this sounding in Storm Lab

The surface observations

Macdill Afb/Tampa (MCF), 22 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
00:00 UTC

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

The radar

The Tampa radar (KTBW), 17 km away, was scanning. The volume nearest the touchdown began at 19:55 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 1996 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are

The other tornadoes of December 7, 1996

2 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
December 74:55 PM ESTF0Bladen, NC0.110$10,000
December 76:20 PM ESTF0Charlotte, FL0.610$10,000

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.