Tornadoes · United States · South Carolina · 1994

F2 tornado, Union and Cherokee counties, South Carolina, August 16, 1994

This F2 tornado ran 10.0 miles across Union and Cherokee counties on August 16, 1994, touching down at 7:05 PM EDT and reaching 150 yards wide. It killed nobody and injured 1, and did $50,000 to $500,000 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
August 16, 1994
Touchdown
7:05 PM EDT (23:05 UTC)
Path length
10.0 miles (16.1 km)
Path width
150 yards (137 m)
Deaths
0
Injuries
1
Property damage
$50,000 to $500,000
Counties
Union and Cherokee counties
Touchdown point
34.820, -81.650
Lift-off point
34.930, -81.500
Record number
906

The warnings

1 minute of warning. NWS GSP issued a tornado warning for this county at 23:04 UTC, 1 minute before the tornado touched down, in force until 00:00 UTC.

Issued (UTC)ExpiredProductOffice
19:34 UTC20:30 UTCTornado WarningGSP
20:31 UTC21:15 UTCTornado WarningGSP
23:04 UTC00:00 UTCTornado WarningGSP

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. The outlook in force was issued at 06:12 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.

Athens Municipal, GA (KAHN), 12:00Z

11.1 hours before the tornado, 189 km from the path. August 16, 1994.

Skew-T log-pSkew-T log-p diagram, Athens Municipal, GA at 12:00Z on 1994-08-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 19 joules per kilogram, CIN -37, lifted condensation level 708 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, Athens Municipal, GA at 12:00Z on 1994-08-16The 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 138 square meters per square second, 0 to 6 km bulk shear 22 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
19 J/kg
Mixed-layer CIN
-37 J/kg
Surface CAPE
165 J/kg
Mixed-layer LCL
708 m above ground
0-6 km bulk shear
22 kt
0-1 km bulk shear
23 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
198 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1
0-3 km lapse rate
4.9 K/km

Open this sounding in Storm Lab

Athens Municipal, GA (KAHN), 00:00Z

0.9 hours after it, 189 km from the path. August 17, 1994.

Skew-T log-pSkew-T log-p diagram, Athens Municipal, GA at 00:00Z on 1994-08-17Temperature 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 -7326, lifted condensation level 597 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, Athens Municipal, GA at 00:00Z on 1994-08-17The 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 266 square meters per square second, 0 to 6 km bulk shear 30 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
-7326 J/kg
Surface CAPE
99 J/kg
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
30 kt
0-1 km bulk shear
37 kt
0-1 km storm-relative helicity
266 m²/s²
0-3 km storm-relative helicity
290 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.6 K/km

Open this sounding in Storm Lab

This ground now

The live radar over the trackEvery 1994 tornado in South CarolinaEvery tornado in South Carolina since 1950Warnings in force in South Carolina nowThe forecast where you are

The other tornadoes of August 16, 1994

30 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 1610:09 AM EDTF1Bamberg, SC5.0731$5,000 to $50,000
August 1611:20 AM EDTF1Orangeburg, SC0.150$5,000 to $50,000
August 1612:00 PM EDTF2Lexington, SC0.150
August 1612:16 PM EDTF0Lexington, SC0.530$5,000 to $50,000
August 1612:27 PM EDTF2Lexington, SC2.023
August 1612:53 PM EDTF0Lexington, SC0.1100
August 161:18 PM EDTF1Richland, SC1.073
August 161:30 PM EDTF0Richland, SC2.050
August 161:32 PM EDTF1Newberry, SC0.550
August 161:35 PM EDTF3Lexington, SC8.044040$5 million to $50 million
August 161:35 PM EDTF3Lexington, SC0.373
August 161:39 PM EDTF1Hart, GA1.01001$50,000 to $500,000
August 161:43 PM EDTF0Fairfield, SC0.550
August 162:00 PM EDTF0Kershaw, SC0.150
August 162:15 PM EDTF2Oglethorpe, GA1.0200$500,000 to $5 million
August 162:40 PM EDTF0Greenwood, SC0.130$5,000 to $50,000
August 162:50 PM EDTF3Union, SC30.0250$50,000 to $500,000
August 163:00 PM EDTF1Union, SC30.0150$50,000 to $500,000
August 164:33 PM EDTF2Fairfield, SC0.350
August 164:55 PM EDTF0Franklin, FL0.110
August 165:44 PM EDTF0Fairfield, SC0.1100
August 165:50 PM EDTF0York, SC0.150
August 165:56 PM EDTF1Cherokee, SC3.073$50,000 to $500,000
August 166:30 PM EDTF1Cleveland, NC2.0200$50,000 to $500,000
August 166:36 PM EDTF2Cherokee, SC4.0100$50,000 to $500,000
August 166:55 PM EDTF1Chester, SC0.373
August 167:42 PM EDTF0Caldwell, NC2.050$5,000 to $50,000
August 167:45 PM EDTF2Catawba, NC1.52001$50,000 to $500,000
August 168:15 PM EDTF0Wilkes, NC2.050$5,000 to $50,000
August 161:00 AM EDTF0Iredell, NC1.050$5,000 to $50,000

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.