Tornadoes · United States · Georgia · 2021

EF0 tornado, Rock Hill to Sawhatchee, Georgia, April 24, 2021

From Rock Hill to Sawhatchee, this EF0 tornado ran 4.4 miles across Early County on April 24, 2021, touching down at 9:01 AM EDT and reaching 75 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
April 24, 2021
Touchdown
9:01 AM EDT (13:01 UTC)
Lifted
9:02 AM EDT (13:02 UTC)
On the ground
1 minutes
Path length
4.4 miles (7.1 km)
Path width
75 yards (69 m)
Deaths
0
Injuries
0
County
Early County
Touchdown point
31.259, -85.034
Lift-off point
31.267, -84.959
Record number
2104240701-01

What the Weather Service recorded

Multiple rounds of strong to severe storms affected the region on April 24th. Tornadoes, large hail (some to 2 inches in diameter), and widespread damaging winds occurred. The multiple rounds also caused rainfall amounts in excess of 6 inches in some locations across the tri-state region, resulting in flash flooding.

The tornado touched down near Howard Landing Road in western Early County. There was minor damage to a mobile home near Jack Wright Road. An outbuilding and camper were destroyed at this location. Extensive tree damage was observed at a home along Highway 39. Roof damage was also noted at this location. The tornado continued eastward, causing sporadic tree damage before dissipating at N. Main Street in Blakely. The damage rating of EF1 with max winds estimated at 95 mph was based on the extensive tree damage and minor damage to homes.

An EF0 tornado with max winds estimated at 80 mph touched down between Old Cedar Springs Road and County Road 26 in southwestern Early County. Sporadic tree damage was observed north of Big Pine Road and along Cedar Springs Road. The tornado dissipated near Fryer Road. Rating is based on sporadic tree damage and minimal structural impacts.

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

The warnings

13 minutes of warning. NWS TAE issued a tornado warning for this county at 12:48 UTC, 13 minutes before the tornado touched down, in force until 13:15 UTC.

The county was under a tornado watch, issued at 10:22 UTC and running to 19:00 UTC.

Issued (UTC)ExpiredProductOffice
05:45 UTC03:34 UTCFlash Flood WatchTAE
10:22 UTC19:00 UTCTornado WatchTAE
12:00 UTC00:00 UTCWind AdvisoryTAE
12:40 UTC13:48 UTCSevere Thunderstorm WarningTAE
12:48 UTC13:15 UTCTornado WarningTAE
12:52 UTC13:45 UTCTornado WarningTAE
13:10 UTC13:45 UTCTornado WarningTAE
15:58 UTC20:00 UTCFlood AdvisoryTAE
19:39 UTC19:58 UTCTornado WarningTAE
19:49 UTC20:45 UTCSevere Thunderstorm WarningTAE
20:00 UTC00:50 UTCSevere Thunderstorm WatchTAE
20:34 UTC21:15 UTCSevere Thunderstorm WarningTAE
22:37 UTC23:15 UTCTornado WarningTAE
23:05 UTC23:45 UTCSevere Thunderstorm WarningTAE
00:01 UTC00:30 UTCSevere Thunderstorm WarningTAE
00:06 UTC00:45 UTCSevere Thunderstorm WarningTAE
00:37 UTC01:16 UTCSevere Thunderstorm WarningTAE
00:50 UTC03:10 UTCSevere Thunderstorm WatchTAE

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 Enhanced Risk, with a 0.10 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 12:56 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.

Tallahassee Rgnl, FL (KTLH), 12:00Z

1.0 hours before the tornado, 117 km from the path. April 24, 2021.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2021-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 175 joules per kilogram, CIN -61, lifted condensation level 544 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, Tallahassee Rgnl, FL at 12:00Z on 2021-04-24The 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 447 square meters per square second, 0 to 6 km bulk shear 64 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
175 J/kg
Mixed-layer CIN
-61 J/kg
Surface CAPE
124 J/kg
Mixed-layer LCL
544 m above ground
0-6 km bulk shear
64 kt
0-1 km bulk shear
38 kt
0-1 km storm-relative helicity
447 m²/s²
0-3 km storm-relative helicity
570 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7
0-3 km lapse rate
4.5 K/km

Open this sounding in Storm Lab

Tallahassee Rgnl, FL (KTLH), 00:00Z

11.0 hours after it, 117 km from the path. April 25, 2021.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2021-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 2012 joules per kilogram, CIN -1, lifted condensation level 697 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, Tallahassee Rgnl, FL at 00:00Z on 2021-04-25The 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 293 square meters per square second, 0 to 6 km bulk shear 61 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
2012 J/kg
Mixed-layer CIN
-1 J/kg
Surface CAPE
2789 J/kg
Mixed-layer LCL
697 m above ground
0-6 km bulk shear
61 kt
0-1 km bulk shear
39 kt
0-1 km storm-relative helicity
293 m²/s²
0-3 km storm-relative helicity
374 m²/s²
Significant tornado parameter
4.7
Supercell composite
19.4
0-3 km lapse rate
5.8 K/km

Open this sounding in Storm Lab

The radar

The Ft Rucker radar (KEOX), 49 km away, was scanning. The volume nearest the touchdown began at 13:02 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
12:59 UTCTORNADO5 Nnw Rock HillEarly, GAEF1 TORNADO CONFIRMED BY STORM SURVEY.
12:59 UTCTORNADO5 Nnw Rock HillEarly, GATDS APPEARED AT THIS LOCATION WITH A TRAINED SPOTTER REPORTING DAMAGE IN THE FORM OF BLOWN OVER AND SNAPPED TREES AS THE TDS MOVED EASTWARD TO JUST NORTH OF BLAKELY.
13:01 UTCTORNADO1 Ssw SawhatcheeEarly, GAEF0 TORNADO CONFIRMED BY STORM SURVEY.
13:15 UTCTSTM WND DMG1 S Fort GainesClay, GATREES WITH POWER LINES ON 39 N, 39 S, AND 37E IN CLAY COUNTY.
13:15 UTCTSTM WND DMGColquittMiller, GAPARTIAL ROOF COLLAPSE DUE TO HIGH WINDS.
13:15 UTCTSTM WND DMGFort GainesClay, GATREES AND POWER LINES DOWN.
13:29 UTCTSTM WND DMGBlakelyEarly, GAMULTIPLE TREES AND POWER LINES DOWN AROUND 26256 HWY 39.
13:42 UTCHAIL 1.751 N NewtonBaker, GA
16:05 UTCTSTM WND DMG2 Nw BlakelyEarly, GANUMEROUS TREES DOWN ALONG GA HIGHWAY 39.

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

This ground now

The live radar over the trackEvery 2021 tornado in GeorgiaEvery tornado in Georgia since 1950Warnings in force in Georgia nowThe forecast where you are

The other tornadoes of April 24, 2021

5 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 247:50 AM CDTEF1Henry, AL4.11502$100,000
April 247:51 AM CDTEF0Houston, AL0.4100$25,000
April 248:59 AM EDTEF1Early, GA7.0150$75,000
April 249:30 AM EDTEF1Terrell, GA0.9100
April 249:03 PM EDTEF2Coffee, GA8.2360

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.