Tornadoes · United States · Florida · 2021

EF1 tornado, Bayou George, Florida, March 18, 2021

This EF1 tornado ran 0.4 miles across Bay County on March 18, 2021, touching down at 6:25 AM CDT and reaching 50 yards wide. It killed nobody, and did $50,000 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
March 18, 2021
Touchdown
6:25 AM CDT (11:25 UTC)
Lifted
6:26 AM CDT (11:26 UTC)
On the ground
1 minutes
Path length
0.4 miles (0.6 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
Property damage
$50,000
County
Bay County
Touchdown point
30.263, -85.529
Lift-off point
30.265, -85.523
Record number
2103180525-01

The damage survey

5 damage points were recorded along this path by NWS TAE, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 95 mph.

  • Several pod containers tossed.
  • Fence blown down with 2x4s from neighbors roof penetrating porch roof.
  • Roof has been repaired 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.

The tornado touched down along the north shore of a small lake near S. Lake Joanna Dr. and Sweet Lane. The tornado travelled east-northeast across the lake, producing EF1 damage to a home at the northeast end of the lake in the 7300 block of S. Lake Joanna Dr, including removal of a back porch canopy roof and causing a sizable opening in the main roof of the home. Debris from this house peppered another nearby home, with two 2x4s puncturing its back porch awning. The tornado crossed east-northeast across Bayou George Dr. On the other side of Bayou George Dr. the tornado hit a PODS storage yard, where PODS were originally in 3-high stacks. Some of the PODS shifted, and one POD unit was tossed. The tornado then lifted. Tornado damage at the home at the east-northeast end of the lake in the 7300 block of S. Lake Joanna Drive is consistent with a tornado of EF1 strength with max winds around 95 mph.

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

The warnings

23 minutes of warning. NWS TAE issued a tornado warning for this county at 11:02 UTC, 23 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
10:40 UTC11:44 UTCSevere Thunderstorm WarningTAE
11:02 UTC11:30 UTCTornado WarningTAE
11:05 UTC11:45 UTCTornado WarningTAE
11:19 UTC12:35 UTCSevere Thunderstorm WarningTAE
11:48 UTC12:00 UTCTornado 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 radar

The Eglin Afb radar (KEVX), 51 km away, was scanning. The volume nearest the touchdown began at 11:23 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
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 CDTEF0Washington, FL1.625
March 186:02 AM CDTEF0Bay, FL3.9100$100,000
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.