Tornadoes · United States · Florida · 2018
EF1 tornado, Hamburg to Cherry Lake, Florida, December 3, 2018
From Hamburg to Cherry Lake, this EF1 tornado ran 2.1 miles across Madison County on December 3, 2018, touching down at 2:34 AM EST and reaching 279 yards wide. It killed nobody, and did $25,000 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.
EF065 to 85 mph
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mphthis tornado
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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
- December 3, 2018
- Touchdown
- 2:34 AM EST (07:34 UTC)
- Lifted
- 2:39 AM EST (07:39 UTC)
- On the ground
- 5 minutes
- Path length
- 2.1 miles (3.5 km)
- Path width
- 279 yards (255 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $25,000
- County
- Madison County
- Touchdown point
- 30.609, -83.485
- Lift-off point
- 30.630, -83.459
- Record number
- 1812030134-01
The damage survey
30 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 100 mph.
- Trampoline tossed into trees adjacent to field.
- Two healthy trees uprooted. then cattle fence wrapped around it.
- farm trailer moved 100 yards and flipped
- mobile home slid off blocks
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 significant flooding and severe weather event unfolded over the tri-state area during early December as showers and thunderstorms spread northward across the area for multiple days. The most noteworthy impact over the weekend was heavy precipitation. Widespread rainfall totals reached 5-7 inches throughout the area with some localized heavier amounts near 10 inches. This resulted in flash flooding and river flooding across numerous counties. In addition, five tornadoes touched down, including one in southeast Alabama, two in southwest Georgia, one in the Florida panhandle, and one in the Florida big bend.
An EF1 tornado with 100 mph winds touched down in Madison County early Monday morning. The path length was 2.17 miles. One mobile home was shifted off its blocks. A small outbuilding was swept off its foundation and rolled several feet. Another mobile home nearby was shifted slightly and the blocks underneath are now tilted. Considerable tree damage was present throughout the path. There were no injuries or fatalities.
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.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 15:07 UTC | 15:30 UTC | Severe Thunderstorm Warning | TAE |
| 21:27 UTC | 22:00 UTC | Severe Thunderstorm Warning | TAE |
| 23:40 UTC | 19:25 UTC | Flash Flood Watch | TAE |
| 07:38 UTC | 08:15 UTC | Tornado Warning | TAE |
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 05:44 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
7.6 hours before the tornado, 83 km from the path. December 3, 2018.
- Mixed-layer CAPE
- 1233 J/kg
- Mixed-layer CIN
- -31 J/kg
- Surface CAPE
- 1275 J/kg
- Mixed-layer LCL
- 576 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 6.7
- 0-3 km lapse rate
- 5.8 K/km
Tallahassee Rgnl, FL (KTLH), 12:00Z
4.4 hours after it, 83 km from the path. December 3, 2018.
- Mixed-layer CAPE
- 2 J/kg
- Mixed-layer CIN
- -131 J/kg
- Surface CAPE
- 1 J/kg
- Mixed-layer LCL
- 573 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 4.2 K/km
The surface observations
Valdosta Regional (VLD), 26 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 05:35 UTC | 69 | 69 | 250° 4 kt | 1012.2 | +RA BR | |
| 05:40 UTC | 230° 3 kt | 1012.2 | +RA BR | |||
| 05:44 UTC | 69 | 69 | 0° 0 kt | 1011.5 | +RA BR | |
| 05:45 UTC | 240° 3 kt | 1011.9 | +RA BR | |||
| 05:50 UTC | 0° 0 kt | 1011.9 | RA BR | |||
| 05:53 UTC | 69 | 69 | 0° 0 kt | 1011.9 | RA BR | |
| 05:55 UTC | 0° 0 kt | 1011.9 | RA BR | |||
| 06:00 UTC | 0° 0 kt | 1012.2 | RA BR | |||
| 06:03 UTC | 69 | 69 | 3 kt | 1012.2 | TSRA BR | |
| 06:05 UTC | 320° 3 kt | 1012.2 | RA BR | |||
| 06:10 UTC | 0° 0 kt | 1012.2 | RA BR | |||
| 06:11 UTC | 69 | 69 | 0° 0 kt | 1012.2 | TSRA BR | |
| 06:15 UTC | 300° 3 kt | 1012.2 | +RA BR | |||
| 06:19 UTC | 69 | 69 | 4 kt | 1011.9 | +TSRA BR | |
| 06:20 UTC | 280° 3 kt | 1012.2 | +RA BR | |||
| 06:23 UTC | 69 | 69 | 0° 0 kt | 1011.9 | VCTS +RA BR | |
| 06:25 UTC | 230° 4 kt | 1012.2 | +RA BR | |||
| 06:29 UTC | 69 | 69 | 190° 5 kt | 1011.9 | VCTS -RA BR | |
| 06:30 UTC | 200° 3 kt | 1011.9 | -RA BR | |||
| 06:33 UTC | 69 | 69 | 3 kt | 1012.2 | VCTS -RA | |
| 06:35 UTC | 230° 4 kt | 1012.2 | -RA | |||
| 06:40 UTC | 0° 0 kt | 1012.2 | -RA | |||
| 06:45 UTC | 69 | 69 | 0° 0 kt | 1012.2 | -RA | |
| 06:50 UTC | 0° 0 kt | 1011.9 | +RA BR | |||
| 06:53 UTC | 69 | 69 | 180° 4 kt | 1011.9 | -RA BR | |
| 06:55 UTC | 0° 0 kt | 1012.2 | -RA BR | |||
| 07:00 UTC | 0° 0 kt | -RA | ||||
| 07:05 UTC | 0° 0 kt | |||||
| 07:10 UTC | 0° 0 kt | 1011.9 | ||||
| 07:15 UTC | 0° 0 kt | -RA | ||||
| 07:20 UTC | 0° 0 kt | -RA | ||||
| 07:25 UTC | 0° 0 kt | 1012.2 | -RA | |||
| 07:30 UTC | 0° 0 kt | 1011.9 | -RA | |||
| 07:35 UTC | 0° 0 kt | 1012.2 | RA BR | |||
| 07:39 UTC | 69 | 69 | 0° 0 kt | 1012.2 | +RA BR | |
| 07:40 UTC | 0° 0 kt | 1012.2 | +RA BR | |||
| 07:45 UTC | 130° 4 kt | +RA BR | ||||
| 07:46 UTC | 69 | 69 | 130° 6 kt | 1011.5 | +TSRA BR | |
| 07:50 UTC | 0° 0 kt | 1011.5 | +RA BR | |||
| 07:53 UTC | 69 | 69 | 0° 0 kt | 1011.5 | +TSRA BR | |
| 07:55 UTC | 0° 0 kt | 1011.9 | +RA BR | |||
| 08:00 UTC | 350° 4 kt | 1011.5 | +RA BR | |||
| 08:01 UTC | 69 | 69 | 3 kt | 1011.2 | VCTS +RA BR | |
| 08:05 UTC | 1011.2 | +RA FG | ||||
| 08:10 UTC | 300° 3 kt | 1011.2 | +RA FG | |||
| 08:13 UTC | 69 | 69 | 5 kt | 1011.9 | +TSRA FG | |
| 08:15 UTC | 290° 3 kt | 1011.5 | +RA BR | |||
| 08:20 UTC | 300° 4 kt | 1011.9 | +RA BR | |||
| 08:23 UTC | 69 | 69 | 4 kt | 1011.9 | TSRA BR | |
| 08:25 UTC | 270° 3 kt | 1012.2 | RA BR | |||
| 08:29 UTC | 68 | 68 | 5 kt | 1012.2 | VCTS RA BR | |
| 08:30 UTC | 300° 4 kt | 1012.2 | +RA BR | |||
| 08:32 UTC | 67 | 67 | 3 kt | 1012.2 | +TSRA BR | |
| 08:35 UTC | 310° 3 kt | 1011.5 | +RA FG | |||
| 08:40 UTC | 300° 4 kt | 1011.9 | +RA BR | |||
| 08:44 UTC | 66 | 66 | 4 kt | 1011.9 | TSRA BR | |
| 08:45 UTC | 310° 3 kt | 1012.2 | -RA BR | |||
| 08:47 UTC | 66.2 | 66.2 | 4 kt | 1012.2 | -RA BR | |
| 08:50 UTC | 300° 3 kt | 1011.9 | RA BR | |||
| 08:53 UTC | 66 | 66 | 3 kt | 1012.2 | RA BR | |
| 08:55 UTC | 300° 4 kt | 1012.2 | -RA BR | |||
| 09:00 UTC | 280° 3 kt | 1012.2 | -RA BR | |||
| 09:05 UTC | 310° 5 kt | 1012.2 | -RA | |||
| 09:06 UTC | 66 | 66 | 4 kt | 1012.2 | -RA | |
| 09:10 UTC | 310° 4 kt | 1011.9 | -RA | |||
| 09:12 UTC | 65 | 65 | 5 kt | 1011.9 | -RA | |
| 09:15 UTC | 310° 3 kt | 1011.9 | -RA | |||
| 09:20 UTC | 310° 3 kt | 1011.9 | -RA | |||
| 09:23 UTC | 64 | 64 | 3 kt | 1012.2 | -RA | |
| 09:25 UTC | 300° 3 kt | 1012.2 | -RA | |||
| 09:30 UTC | 300° 4 kt | 1012.2 | -RA |
From the Iowa Environmental Mesonet's archive of airport observations.
The radar
The Moody AFB radar (KVAX), 54 km away, was scanning. The volume nearest the touchdown began at 07:32 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) | Report | Where | County | Remark |
|---|---|---|---|---|
| 07:32 UTC | TORNADO | 3 Ne Hamburg | Madison, FL | AN EF-1 TORNADO WITH 100 MPH WINDS TOUCHED DOWN IN NORTHERN MADISON COUNTY. TWO MOBILE HOMES WERE IMPACTED AND A SMALL OUTBUILDING WAS SWEPT OFF ITS FOUNDATION. IN ADDITION TREES WERE DOWNED. THE PATH LENGTH WAS 2.16 MIL |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2018 tornado in FloridaEvery tornado in Florida since 1950Warnings in force in Florida nowThe forecast where you are
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.