Tornadoes · United States · Georgia · 2021

EF0 tornado, Blakely-Early Arpt, Georgia, March 18, 2021

This EF0 tornado ran 3.1 miles across Early County on March 18, 2021, touching down at 7:44 AM EDT and reaching 50 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
March 18, 2021
Touchdown
7:44 AM EDT (11:44 UTC)
Lifted
7:50 AM EDT (11:50 UTC)
On the ground
6 minutes
Path length
3.1 miles (5.1 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
County
Early County
Touchdown point
31.360, -84.880
Lift-off point
31.390, -84.840
Record number
2103180544-01

What the Weather Service recorded

A strong spring cold front moved through the tri-state region. A squall line preceded the front with scattered reports of severe weather, including a few tornadoes.

A dual-pol tornadic debris signature was observed on radar in a forested area with tree damage. No structural damage was reported.

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

The warnings

12 minutes of warning. NWS TAE issued a tornado warning for this county at 11:32 UTC, 12 minutes before the tornado touched down, in force until 12:15 UTC.

The county was under a tornado watch, issued at 04:02 UTC and running to 11:55 UTC.

Issued (UTC)ExpiredProductOffice
04:02 UTC11:55 UTCTornado WatchTAE
11:01 UTC12:00 UTCSevere Thunderstorm WarningTAE
11:32 UTC12:15 UTCTornado WarningTAE
11:55 UTC13:09 UTCTornado WatchTAE
11:55 UTC12:46 UTCSevere Thunderstorm WarningTAE

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 05:48 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), 00:00Z

11.7 hours before the tornado, 121 km from the path. March 18, 2021.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2021-03-18Temperature 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 -75731, lifted condensation level 1019 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, Tallahassee Rgnl, FL at 00:00Z on 2021-03-18The 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 126 square meters per square second, 0 to 6 km bulk shear 44 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
-75731 J/kg
Surface CAPE
248 J/kg
Mixed-layer LCL
1019 m above ground
0-6 km bulk shear
44 kt
0-1 km bulk shear
26 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
171 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1
0-3 km lapse rate
5.8 K/km

Open this sounding in Storm Lab

The surface observations

Blakely (BIJ), 4 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
09:55 UTC69.864.4170° 10 kt171008.8VCTS
10:15 UTC69.864.4160° 9 kt151008.1
10:35 UTC69.864.4180° 5 kt141009.1-VCTSRA
10:55 UTC6864.4180° 7 kt1008.8VCTSRA
11:15 UTC69.864.4190° 3 kt1008.8-TSRA
11:35 UTC69.864.4190° 12 kt261008.8+TSRA
11:55 UTC6864.4280° 11 kt211007.8+TSRA
12:15 UTC66.262.6260° 5 kt1008.5+VCTSRA
12:35 UTC66.264.4240° 11 kt181008.8VCTSRA
12:55 UTC6864.4230° 3 kt1008.8
13:15 UTC6864.4200° 3 kt1008.5TS
13:35 UTC6864.4240° 6 kt1008.8VCTS

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

The radar

The Ft Rucker radar (KEOX), 58 km away, was scanning. The volume nearest the touchdown began at 11:45 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
11:10 UTCTSTM WND GST 453 Nw DonalsonvilleSeminole, GAAWOS STATION K17J DONALSONVILLE AIRPORT.
11:35 UTCTSTM WND DMG4 Ene Cedar SpringsEarly, GAA FEW TREES REPORTED DOWN BETWEEN BLAKELY AND JAKIN IN EARLY COUNTY.
11:44 UTCTORNADO3 Sse Early Co A/PEarly, GATDS OBSERVED ON RADAR IN A FORESTED AREA WITH TREE DAMAGE. NO STRUCTURAL DAMAGE REPORTED.
12:50 UTCTSTM WND DMG2 Sse ChickasawhatcheeTerrell, GASEVERAL TREES SNAPPED AND ROOF DAMAGE TO ONE STRUCTURE.

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 March 18, 2021

15 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
March 184:08 AM CDTEF1Crenshaw, AL0.5150
March 185:27 AM CDTEF1Houston, AL5.21501$200,000
March 185:49 AM CDTEF0Houston, AL2.150$4,000
March 186:02 AM CDTEF0Washington, FL1.625
March 186:02 AM CDTEF0Bay, FL3.9100$100,000
March 186:25 AM CDTEF1Bay, FL0.450$50,000
March 188:40 AM EDTEF0Liberty, FL0.025
March 188:49 AM EDTEF1Terrell, GA4.0200$20,000
March 189:06 AM EDTEF1Lee, GA10.450$250,000
March 181:38 PM EDTEF0Pierce, GA0.15
March 182:46 PM EDTEF0Gilchrist, FL12.5100
March 185:01 PM EDTEF1Guilford, NC2.6500$500,000
March 185:38 PM EDTEF1Alamance, NC2.5200$1.0 million
March 186:04 PM EDTEF1Orange, NC4.3200$150,000
March 189:27 PM EDTEF0Isle of Wight, VA4.2150$100,000

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.