Tornadoes · United States · Georgia · 2021

EF1 tornado, Carlan to Pinefield Crossroads, Georgia, August 17, 2021

From Carlan to Pinefield Crossroads, this EF1 tornado ran 5.7 miles across Banks County on August 17, 2021, touching down at 10:24 AM EDT and reaching 100 yards wide. It killed nobody, and did $100,000 of property damage.

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 mph

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

  2. EF186 to 110 mphthis tornado

    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
EF1
Date
August 17, 2021
Touchdown
10:24 AM EDT (14:24 UTC)
Lifted
10:31 AM EDT (14:31 UTC)
On the ground
7 minutes
Path length
5.7 miles (9.2 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
0
Property damage
$100,000
County
Banks County
Touchdown point
34.333, -83.416
Lift-off point
34.403, -83.470
Record number
2108170824-01

What the Weather Service recorded

The remains of Tropical Storm Fred moved across central and north Georgia as a tropical depression during the overnight hours through the morning producing isolated reports of damaging winds in convective bands and several tornadoes. No reports of wind damage were received outside of the stronger convective bands. Rainfall amounts exceeded 4 inches in portions of northeast Georgia, with amounts of 6 to 8 inches observed in the northeast Georgia mountains.

A National Weather Service survey found that an EF1 tornado with maximum wind speeds of 90 mph and a maximum path width of 100 yards touched down in Banks County along Bennett Road west of Highway 63. The tornado uprooted and snapped trees as it moved northwest along Bennett Road. One home was almost completely destroyed by a falling oak tree. The tornado continued to the Northwest across a landfill before crossing Highway 51 around Damascus Road where numerous trees were snapped or uprooted. Continuing to the Northwest, the tornado crossed Payne Road snapping and uprooting dozens of trees and destroying a chicken house on the north|side of Payne Road. A small trailer was rolled and thrown 30 yards. The tornado was at its strongest along Payne Road before beginning to weaken as it continued moving to the northwest. A tree was blown down into a home along Hawkins Road right before the tornado lifted as it approached Pace and Caudell Roads. [8/17/21: Tornado #7, County #1/1, EF-1, Banks, 2021:021].

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. One was issued for the county at another hour that day.

The county was under a tornado watch, issued at 07:48 UTC and running to 15:45 UTC.

Issued (UTC)ExpiredProductOffice
06:00 UTC19:47 UTCFlash Flood WatchFFC
07:48 UTC15:45 UTCTornado WatchFFC
14:26 UTC14:56 UTCTornado WarningFFC
14:32 UTC19:45 UTCFlash Flood WarningFFC
16:23 UTC00:41 UTCFlood 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, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 12:45 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

2.4 hours before the tornado, 148 km from the path. August 17, 2021.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2021-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 259 joules per kilogram, CIN 0, lifted condensation level 461 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 km2 km3 km6 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 2021-08-17The 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 113 square meters per square second, 0 to 6 km bulk shear 11 knots.193958Sfc1 km3 km6 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
259 J/kg
Mixed-layer CIN
0 J/kg
Surface CAPE
389 J/kg
Mixed-layer LCL
461 m above ground
0-6 km bulk shear
11 kt
0-1 km bulk shear
30 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
197 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8
0-3 km lapse rate
4.8 K/km

Open this sounding in Storm Lab

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

9.6 hours after it, 148 km from the path. August 18, 2021.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2021-08-18Temperature 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 -81876, lifted condensation level 982 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 00:00Z on 2021-08-18The 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 30 square meters per square second, 0 to 6 km bulk shear 23 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
-81876 J/kg
Surface CAPE
555 J/kg
Mixed-layer LCL
982 m above ground
0-6 km bulk shear
23 kt
0-1 km bulk shear
13 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
5.4 K/km

Open this sounding in Storm Lab

The surface observations

Cornelia (AJR), 18 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
12:35 UTC7370.750° 14 kt191015.2+RA
12:55 UTC73.470.750° 14 kt191014.9+RA
13:15 UTC73.67170° 17 kt251014.2RA
13:35 UTC73.871.260° 16 kt221014.2RA
13:55 UTC74.371.670° 12 kt221013.9+RA
14:15 UTC74.371.670° 12 kt191014.2+VCTSRA
14:35 UTC74.371.660° 13 kt231013.5+RA
14:55 UTC7471.6150° 8 kt241014.9+RA
15:15 UTC74.571.8150° 11 kt251014.2+RA
15:35 UTC74.371.8110° 4 kt161014.2RA
15:55 UTC74.872.5120° 5 kt1014.2-RA
16:15 UTC75.673100° 3 kt-RA

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

The radar

The Greer radar (KGSP), 126 km away, was scanning. The volume nearest the touchdown began at 14:23 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
12:20 UTCTSTM WND DMG2 Se IlaMadison, GAMINOR DAMAGE TO A FEW GRAIN BINS AND BARNS...TREE DOWNED ONTO A VEHICLE...AND NUMEROUS TREE TOPS BROKEN OFF, ALL ALONG HWY 98 FROM JUST SOUTHWEST OF DANIELSVILLE TO ILA.
14:26 UTCTORNADO4 E HomerBanks, GAEM REPORT OF A MOBILE HOME DESTROYED ALONG BENNETT ROAD. TIME ESTIMATED FROM RADAR.
14:28 UTCTORNADO3 Ssw Pinefield CrossroBanks, GAMUTLIPLE REPORTS OF DAMAGE ALONG PAYNE ROAD. BARN DESTROYED ALONG WITH STRUCTURAL FIRE. TIME ESTIMATED FROM RADAR.
16:45 UTCFLASH FLOOD2 Nne ClevelandWhite, GATHE EMERGENCY MANAGER AND SEVERAL MEDIA OUTLETS REPORTED FLASH FLOODING OF SEVERAL ROADS IN THE CLEVELAND AREA, INCLUDING, BUT NOT LIMITED TO CAMPBELL STREET, THOMAS ROAD AT GA 115 WEST, SOUTH MAIN STREET, QUILLIAN STREE
16:50 UTCFLASH FLOODHelenWhite, GAEMERGENCY MANAGEMENT AND SEVERAL MEDIA OUTLETS REPORTED FLASH FLOODING IN WHITE COUNTY, WITH WIDESPREAD FLOODING OF EDELWEISS STRASSE AND BRUKEN STRASSE FROM THE CHATTAHOOCHEE RIVER. WATER INUNDATED THE PATIO OF A RESTAU
17:00 UTCFLASH FLOODSauteeWhite, GATHE EMERGENCY MANAGER AND SEVERAL MEDIA OUTLETS REPORTED FLASH FLOODING OF SEVERAL ROADS IN SAUTEE NACOOCHEE, INCLUDING, BUT NOT LIMITED TO MAULDIN ROAD AT ASBESTOS ROAD, BEAN CREEK AT GOLD VALLEY ROAD, ASBESTOS ROAD, AN

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 August 17, 2021

21 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 174:34 AM EDTEF0Meriwether, GA3.4150$25,000
August 175:47 AM EDTEF0Twiggs, GA2.6150$50,000
August 176:24 AM EDTEF1Greene, GA5.5100$100,000
August 176:27 AM EDTEF0Baldwin, GA1.9150$50,000
August 178:20 AM EDTEF1Madison, GA5.9150$100,000
August 1711:15 AM EDTEF1Iredell, NC5.1200$15,000
August 1712:50 PM EDTEF0Oconee, SC0.150$10,000
August 1712:54 PM EDTEF0Wilkes, NC0.750$15,000
August 1712:59 PM EDTEF0Anderson, SC0.150
August 171:03 PM EDTEF0Edgefield, SC1.5100
August 171:11 PM EDTEF0Wilkes, NC0.775$85,000
August 172:34 PM EDTEF0Rabun, GA0.025
August 172:53 PM EDTEF1Greenville, SC2.475$100,000
August 173:31 PM EDTEF0Lexington, SC9.475
August 173:33 PM EDTEF0Lexington, SC4.350
August 173:49 PM EDTEF1Newberry, SC2.0100
August 173:53 PM EDTEF1Lexington, SC2.9250
August 175:40 PM EDTEF1Orangeburg, SC0.950
August 176:07 PM EDTEF0Laurens, SC0.230
August 176:18 PM EDTEF1Laurens, SC1.475$20,000
August 178:47 PM EDTEF0Saluda, SC0.125

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.