Tornadoes · United States · Ohio · 2024
EF0 tornado, Cable to Fountain Park, Ohio, April 17, 2024
From Cable to Fountain Park, this EF0 tornado ran 3.0 miles across Champaign County on April 17, 2024, touching down at 4:21 PM EDT and reaching 150 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 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
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
- EF0
- Date
- April 17, 2024
- Touchdown
- 4:21 PM EDT (20:21 UTC)
- Lifted
- 4:25 PM EDT (20:25 UTC)
- On the ground
- 4 minutes
- Path length
- 3.0 miles (4.8 km)
- Path width
- 150 yards (137 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $25,000
- County
- Champaign County
- Touchdown point
- 40.128, -83.633
- Lift-off point
- 40.145, -83.583
- Record number
- 2404171421-01
The damage survey
7 damage points were recorded along this path by NWS ILN, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 75 mph.
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
Scattered thunderstorms developed as a low pressure system moved through the region.
The tornado began approximately 6 miles east of Urbana, Ohio north of US Highway 36 with the first visible sign of damage along Mutual Union Road. Minor roof damage was observed at one residence with nearly all trees in the surrounding location remaining intact. As the tornado continued northeast, outbuilding damage was observed on Yocom Road. The most concentrated area of damage occurred on Perry Road where multiple trees were uprooted and several outbuildings were damaged. The final location of damage was found on North Parkview Road where minor roof and tree damage was observed. The tornado likely dissipated east of this point.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
0 minutes of warning. NWS ILN issued a tornado warning for this county at 20:21 UTC, 0 minutes before the tornado touched down, in force until 20:45 UTC.
The county was under a tornado watch, issued at 16:21 UTC and running to 21:24 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 16:21 UTC | 21:24 UTC | Tornado Watch | ILN |
| 19:21 UTC | 20:00 UTC | Severe Thunderstorm Warning | ILN |
| 20:02 UTC | 20:45 UTC | Severe Thunderstorm Warning | ILN |
| 20:21 UTC | 20:45 UTC | Tornado Warning | ILN |
| 20:30 UTC | 21:00 UTC | Severe Thunderstorm Warning | ILN |
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 19:58 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.
Cncnati-Daytn, OH (KILN), 12:00Z
8.4 hours before the tornado, 80 km from the path. April 17, 2024.
- Mixed-layer CAPE
- 54 J/kg
- Mixed-layer CIN
- -64 J/kg
- Surface CAPE
- 4 J/kg
- Mixed-layer LCL
- 496 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 412 m²/s²
- 0-3 km storm-relative helicity
- 414 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
- 0-3 km lapse rate
- 5.0 K/km
Cncnati-Daytn, OH (KILN), 00:00Z
3.6 hours after it, 80 km from the path. April 18, 2024.
- Mixed-layer CAPE
- 197 J/kg
- Mixed-layer CIN
- -16 J/kg
- Surface CAPE
- 563 J/kg
- Mixed-layer LCL
- 1786 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
- 0-3 km lapse rate
- 7.7 K/km
The surface observations
Urbana (I74), 12 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 18:35 UTC | 71.6 | 55.4 | 210° 16 kt | 27 | 1006.4 | |
| 18:55 UTC | 73.4 | 57.2 | 200° 22 kt | 27 | 1005.8 | |
| 19:15 UTC | 73.4 | 55.4 | 200° 19 kt | 28 | 1005.8 | |
| 19:35 UTC | 73.4 | 55.4 | 210° 15 kt | 24 | 1004.7 | |
| 19:55 UTC | 73.4 | 53.6 | 220° 15 kt | 25 | 1005.1 | |
| 20:15 UTC | 69.8 | 55.4 | 290° 15 kt | 21 | 1005.8 | +RA |
| 20:35 UTC | 60.8 | 59 | 310° 8 kt | 20 | 1006.4 | RA |
| 20:55 UTC | 62.6 | 57.2 | 0° 0 kt | 1007.1 | ||
| 21:15 UTC | 62.6 | 57.2 | 320° 3 kt | 1007.5 | ||
| 21:35 UTC | 66.2 | 59 | 270° 6 kt | 1007.8 | ||
| 21:55 UTC | 69.8 | 57.2 | 290° 8 kt | 1008.1 | ||
| 22:15 UTC | 69.8 | 55.4 | 300° 8 kt | 15 | 1008.5 |
From the Iowa Environmental Mesonet's archive of airport observations.
The radar
The Cincinnati radar (KILN), 82 km away, was scanning. The volume nearest the touchdown began at 20:18 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 |
|---|---|---|---|---|
| 19:30 UTC | HAIL 1 | Piqua | Miami, OH | |
| 19:38 UTC | TSTM WND DMG | 4 Ese Kenton | Hardin, OH | Tree down near intersection of CR-144 and Township Road 199. Time estimated from radar. |
| 19:42 UTC | NON-TSTM WND GST 46 | 3 W Riverlea | Franklin, OH | |
| 20:01 UTC | TSTM WND DMG | 3 Sw Marion | Marion, OH | Tree and utility poles down. |
| 20:11 UTC | NON-TSTM WND GST 57 | 3 W Riverlea | Franklin, OH | |
| 20:15 UTC | NON-TSTM WND GST 48 | 2 Nw Vandalia | Montgomery, OH | |
| 20:17 UTC | FUNNEL CLOUD | 4 Sw Magnetic Springs | Union, OH | Report of funnel cloud looking to the west. |
| 20:21 UTC | TORNADO | 3 N Mutual | Champaign, OH | EF0 tornado caused tree and structural damage, with maximum winds of 75 mph. Path length of 3.0 miles. |
| 21:05 UTC | TSTM WND GST 59 | 3 W Riverlea | Franklin, OH | |
| 21:05 UTC | HAIL 1 | 3 Se Dublin | Franklin, OH | |
| 21:08 UTC | HAIL 0.88 | 3 Se Dublin | Franklin, OH | |
| 21:15 UTC | HAIL 0.5 | 3 Ssw Galena | Delaware, OH | |
| 21:20 UTC | HAIL 0.75 | Westerville | Franklin, OH | |
| 21:22 UTC | TSTM WND DMG | 1 Nw Westerville | Franklin, OH | Large tree limbs down. |
| 21:30 UTC | HAIL 0.88 | 2 Nne Downtown Columbus | Franklin, OH | |
| 21:30 UTC | HAIL 1 | 2 S Riverlea | Franklin, OH | |
| 21:35 UTC | HAIL 1 | 3 Ne Grandview Heights | Franklin, OH | |
| 21:38 UTC | HAIL 1 | 2 Nw Gahanna | Franklin, OH | |
| 21:40 UTC | FLOOD | 3 Ne Grandview Heights | Franklin, OH | 5 to 6 inches of water flowing on High Street. |
| 21:45 UTC | HAIL 0.5 | Orient | Pickaway, OH | |
| 21:50 UTC | HAIL 1 | 4 E Mount Sterling | Pickaway, OH |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2024 tornado in OhioEvery tornado in Ohio since 1950Warnings in force in Ohio nowThe forecast where you are
The other tornadoes of April 17, 2024
4 more were confirmed in the United States that day.
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.