Tornadoes · United States · Florida · 2021

EF0 tornado, Red Head, Florida, March 18, 2021

This EF0 tornado ran 1.6 miles across Washington County on March 18, 2021, touching down at 6:02 AM CDT and reaching 25 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
6:02 AM CDT (11:02 UTC)
Lifted
6:04 AM CDT (11:04 UTC)
On the ground
2 minutes
Path length
1.6 miles (2.5 km)
Path width
25 yards (23 m)
Deaths
0
Injuries
0
County
Washington County
Touchdown point
30.470, -85.810
Lift-off point
30.486, -85.791
Record number
2103180502-01

The damage survey

9 damage points were recorded along this path by NWS TAE, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 83 mph.

  • Metal sign bent 90 degrees.
  • Metal door track punched hole in wall. Hood of classic car Galaxy was bent up 90 degrees.
  • Cessna shifted 20 degrees.
  • Citation aircraft spun 90 degrees with nose damaging adjacent plane, which was spun 20 degrees. Note, larger plane has been repositioned in this photo.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

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 tornadic debris signature was observed on dual-pol 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

0 minutes of warning. NWS TAE issued a tornado warning for this county at 11:02 UTC, 0 minutes before the tornado touched down, in force until 11:30 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
09:29 UTC10:30 UTCSevere Thunderstorm WarningTAE
10:40 UTC11:44 UTCSevere Thunderstorm WarningTAE
11:02 UTC11:30 UTCTornado WarningTAE
11:19 UTC12:35 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 Marginal Risk, with a 0.02 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 surface observations

Panama City (ECP), 13 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
09:05 UTC140° 14 kt1010.2BR
09:10 UTC140° 14 kt1009.8
09:15 UTC140° 13 kt1009.5
09:20 UTC130° 16 kt221008.8
09:25 UTC 18 kt1008.5
09:30 UTC140° 14 kt1008.5
09:35 UTC150° 17 kt221009.1
09:40 UTC140° 17 kt1009.1
09:45 UTC150° 18 kt221009.5
09:50 UTC150° 18 kt1009.8
09:53 UTC7270150° 16 kt281009.8
09:55 UTC160° 14 kt1009.8
10:00 UTC150° 15 kt1009.5
10:05 UTC150° 11 kt1009.8
10:10 UTC150° 13 kt1009.8
10:10 UTC7270150° 13 kt211009.8VCTS
10:15 UTC160° 11 kt171009.8-RA
10:20 UTC150° 14 kt1009.8-RA BR
10:25 UTC 14 kt191009.1RA BR
10:30 UTC130° 11 kt1008.8RA BR
10:34 UTC7270130° 15 kt211008.5TSRA BR
10:35 UTC 14 kt1008.5RA BR
10:40 UTC 14 kt1008.1-RA BR
10:45 UTC 17 kt1008.1-RA BR
10:50 UTC 17 kt221008.1-RA BR
10:53 UTC7170130° 19 kt261007.8TSRA
10:55 UTC 22 kt271008.1RA
11:00 UTC 621008.1RA
11:05 UTC220° 23 kt1008.8RA SQ
11:06 UTC6867220° 20 kt641008.8TSRA SQ
11:10 UTC220° 19 kt1009.1+RA BR
11:13 UTC6665230° 16 kt351009.1+TSRA BR
11:15 UTC240° 14 kt1009.1RA BR
11:19 UTC6664220° 9 kt251008.8-TSRA
11:20 UTC210° 8 kt1009.1-RA
11:25 UTC230° 8 kt1009.1
11:29 UTC6563210° 8 kt1009.5-RA
11:30 UTC220° 7 kt1009.1-RA
11:35 UTC190° 7 kt1009.5-RA
11:40 UTC200° 5 kt1009.5
11:45 UTC220° 9 kt1009.8-RA
11:50 UTC210° 5 kt1009.8-RA BR
11:53 UTC6462210° 6 kt1009.8-RA BR
11:55 UTC220° 5 kt1009.8-RA
12:00 UTC230° 5 kt1009.5
12:05 UTC230° 7 kt1009.8
12:10 UTC220° 8 kt1009.8
12:15 UTC210° 9 kt1009.8-RA
12:20 UTC220° 9 kt1009.8-RA
12:25 UTC210° 8 kt1010.2
12:30 UTC230° 10 kt1010.2
12:35 UTC 11 kt1010.2-RA BR
12:40 UTC 14 kt1010.5RA
12:45 UTC230° 7 kt1009.8RA
12:50 UTC220° 9 kt1009.8RA
12:53 UTC6156200° 10 kt1010.5-RA
12:55 UTC190° 8 kt1010.5-RA
13:00 UTC210° 5 kt1010.2-RA

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

The radar

The Eglin Afb radar (KEVX), 15 km away, was scanning. The volume nearest the touchdown began at 10:59 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
09:04 UTCTSTM WND GST 393 Nne FreeportWalton, FLREPORTED AT FREEPORT HIGH SCHOOL.
09:10 UTCMARINE TSTM WIND 343 Se NicevilleOkaloosa, FL34 KNOT WIND GUST AT MILES BAY.
09:19 UTCTSTM WND GST 392 Wnw Blue Mountain BeaWalton, FLREPORTED AT ED WALLINE PUBLIC BEACH ACCESS.
09:38 UTCTSTM WND GST 39Mossy HeadWalton, FL
09:59 UTCTSTM WND GST 44Holmes County AirportHolmes, FLMEASURED AT K1J0 AWOS.
11:02 UTCTORNADO2 Ese Red HeadWashington, FLTDS OBSERVED ON RADAR OVER A FORESTED AREA WITH TREE DAMAGE. NO STRUCTURAL DAMAGE REPORTED.
11:03 UTCTORNADONw Florida Beaches IntlBay, FLEF0 TORNADO CONFIRMED FROM STORM SURVEY.
11:04 UTCTSTM WND GST 82Nw Florida Beaches IntlBay, FLAT 1100Z, ASOS REPORTED A GUST TO 64 KT (74 MPH). FOLLOW UP WITH TOWER OBSERVER INDICATED A PEAK WIND OF 71 KT (82 MPH) AT 1104Z FOR A 2 MINUTE DURATION.
11:20 UTCTSTM WND DMGBayou GeorgeBay, FLREPORT OF FENCES DOWN AND ROOF DAMAGE NEAR BAYOU GEORGE.
11:25 UTCTORNADOBayou GeorgeBay, FLEF1 TORNADO CONFIRMED FROM STORM SURVEY.
11:30 UTCTSTM WND DMGChipleyWashington, FLA FEW TREES DOWN IN CHIPLEY, ONE ON A POWERLINE.
11:32 UTCMARINE TSTM WIND 404 Se Tyndall AfbBay, FLAWOS STATION KTDR 4 SE TYNDALL AFB.
11:35 UTCTSTM WND DMG3 Se Chipley MunicipalWashington, FLTREE REPORTED DOWN ON MOBILE HOME NEAR CORBIN RD.

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 FloridaEvery tornado in Florida since 1950Warnings in force in Florida 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 CDTEF0Bay, FL3.9100$100,000
March 186:25 AM CDTEF1Bay, FL0.450$50,000
March 187:44 AM EDTEF0Early, GA3.150
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.