Tornadoes · United States · Georgia · 1997

F1 tornado, Chickamauga, Georgia, May 2, 1997

This F1 tornado ran 10.0 miles across Walker County on May 2, 1997, touching down at 7:40 PM EDT and reaching 100 yards wide. It killed 1 person and injured 3, 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 mphthis tornado

    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
F1
Date
May 2, 1997
Touchdown
7:40 PM EDT (23:40 UTC)
Path length
10.0 miles (16.1 km)
Path width
100 yards (91 m)
Deaths
1
Injuries
3
Property damage
$100,000
County
Walker County
Touchdown point
34.800, -85.370
Lift-off point
34.870, -85.300
Record number
147

What the Weather Service recorded

The tornado touched down just southwest of Chickamauga in the Ridgecrest Acre mobile home park. Touchdown was noted to be at the intersection of Georgia Highway 136 and 193. Three mobile homes were completely destroyed, and a total of 28 homes/ mobile homes had damage varying from moderate to being totally destroyed. Homes were moved off their foundations and numerous trees were either snapped or uprooted.

The deaths

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

AgeSexWhereKind
9FMobile/Trailer HomeDirect

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

The warnings

26 minutes of warning. NWS FFC issued a tornado warning for this county at 23:14 UTC, 26 minutes before the tornado touched down, in force until 00:00 UTC.

Issued (UTC)ExpiredProductOffice
23:14 UTC00:00 UTCTornado WarningFFC
23:17 UTC00:00 UTCTornado WarningFFC
00:44 UTC01:30 UTCSevere Thunderstorm WarningFFC
01:38 UTC02:30 UTCSevere Thunderstorm WarningFFC

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 06:00 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.

Peachtre/Fal Fld, GA (KFFC), 12:00Z

11.7 hours before the tornado, 180 km from the path. May 2, 1997.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 1997-05-02Temperature 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 -68268, lifted condensation level 2081 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, Peachtre/Fal Fld, GA at 12:00Z on 1997-05-02The 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 101 square meters per square second, 0 to 6 km bulk shear 43 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
0 J/kg
Mixed-layer CIN
-68268 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
2081 m above ground
0-6 km bulk shear
43 kt
0-1 km bulk shear
13 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
-0.2 K/km

Open this sounding in Storm Lab

Peachtre/Fal Fld, GA (KFFC), 00:00Z

0.3 hours after it, 180 km from the path. May 3, 1997.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 1997-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 888 joules per kilogram, CIN -5, lifted condensation level 1099 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 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, Peachtre/Fal Fld, GA at 00:00Z on 1997-05-03The 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 120 square meters per square second, 0 to 6 km bulk shear 51 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
888 J/kg
Mixed-layer CIN
-5 J/kg
Surface CAPE
767 J/kg
Mixed-layer LCL
1099 m above ground
0-6 km bulk shear
51 kt
0-1 km bulk shear
15 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
242 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.1
0-3 km lapse rate
7.3 K/km

Open this sounding in Storm Lab

The surface observations

Chattanooga/Lovell (CHA), 25 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
21:53 UTC7755170° 9 kt1010.8
22:53 UTC7655160° 11 kt161010.2
23:21 UTC75.255.4170° 11 kt161009.8TS
23:53 UTC7459190° 12 kt1010.2-TSRA
00:32 UTC66.262.6220° 8 kt1011.9+TSRA SHRA
00:39 UTC66.264.4 4 kt1010.2+TSRA SHRA
00:53 UTC6564160° 5 kt1010.8-TSRA BR
01:21 UTC62.662.6180° 10 kt1012.2+TSRA SHRA

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

This ground now

The live radar over the trackEvery 1997 tornado in GeorgiaEvery tornado in Georgia since 1950Warnings in force in Georgia nowThe forecast where you are

The other tornadoes of May 2, 1997

7 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 24:45 PM CDTF1East Carroll Parish, LA13.0400$100,000
May 26:00 PM CDTF2Franklin, TN0.9150$60,000
May 26:30 PM CDTF3Holmes, MS20.0200$200,000
May 27:00 PM CDTF1Attala, MS3.050$10,000
May 28:50 PM CDTF0Carroll, MS1.040$1,000
May 29:00 PM CDTF0Lowndes, MS5.050$10,000
May 29:25 PM CDTF0Leflore, MS1.040

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.