Tornadoes · United States · Ohio · 2026
EF1 tornado, Franklin County, Ohio, August 11, 2026
This EF1 tornado ran 1.8 miles across Franklin County on August 11, 2026, touching down at 10:05 AM EDT and reaching 100 yards wide. It killed nobody.
Preliminary. This is NWS ILN's damage survey, filed in the Damage Assessment Toolkit as S Columbus OH. The rating, the path and the casualties are the survey's and can change while it is revised. The Storm Prediction Center compiles the official record of 2026 from these surveys and publishes it in the spring of 2027; this page moves to that tornado's permanent address when it does.
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 survey
- Rating, as surveyed
- EF1, preliminary
- Date
- August 11, 2026
- Touchdown
- 10:05 AM EDT (14:05 UTC)
- Lifted
- 10:09 AM EDT (14:09 UTC)
- On the ground
- 4 minutes
- Path length
- 1.8 miles (2.9 km)
- Path width
- 100 yards (91 m)
- Deaths
- 0
- Injuries
- 0
- County
- Franklin County
- Touchdown point
- 39.929, -82.988
- Lift-off point
- 39.922, -82.956
- Highest wind the damage implies
- 100 mph
- Surveyed by
- NWS ILN
- The office's name for it
- S Columbus OH
- Survey last edited
- August 18, 2026
- Record number
- None yet. SPC numbers 2026 in the spring of 2027.
What the survey found
An EF-1 intensity tornado occurred in south Columbus just after 10 a.m. EDT on August 11. The tornado began on South 8th Street between East Morrill Avenue and East Hinman Avenue, breaking and uprooting several trees. Siding and roof damage occurred to several residences farther east toward Parsons Avenue, while a business lost a substantial amount of its roof on the east side of Parsons Avenue. Tree and mostly light structural damage continued to the east between East Hinman Avenue and Woodrow Avenue as the tornado moved east of Barack Park and damaged numerous trees and homes along and east of South Champion Avenue to Lockbourne Road. Reeb Avenue was particularly hard hit by the tornado's damaging winds before it crossed Lockbourne Road and damaged more trees in conjunction with multiple businesses. Additional trees and homes were impacted west of Fairwood Avenue, including the roof of one home caving in due to fallen trees and significant damage to a metal roof of a business. The tornado lifted just west of Fairwood Avenue.
Several additional locations received damage from a larger line of thunderstorms that moved through Franklin County during the late morning of August 11, but the locations in south Columbus referenced above were consistent with damage along a convergent path suggesting that a tornado had occurred.
The National Weather Service would like to thank Franklin County Emergency Management for their assistance in conducting this storm damage survey.
Written by NWS ILN in the NWS Damage Assessment Toolkit. A survey is revised as better evidence arrives.
The damage survey
77 damage points were recorded along this path by NWS ILN, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 100 mph.
- partial side wall collapse
Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.
The warnings
No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.
The county was under a severe thunderstorm watch, issued at 13:28 UTC and running to 15:31 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 23:26 UTC | 05:28 UTC | Severe Thunderstorm Watch | ILN |
| 03:11 UTC | 03:33 UTC | Severe Thunderstorm Warning | ILN |
| 03:21 UTC | 04:00 UTC | Severe Thunderstorm Warning | ILN |
| 09:17 UTC | 11:14 UTC | Flood Advisory | ILN |
| 09:29 UTC | 11:01 UTC | Flash Flood Warning | ILN |
| 13:28 UTC | 15:31 UTC | Severe Thunderstorm Watch | ILN |
| 13:47 UTC | 14:30 UTC | Severe Thunderstorm Warning | ILN |
| 14:50 UTC | 17:24 UTC | Flood Advisory | ILN |
| 16:40 UTC | 21:56 UTC | Severe Thunderstorm Watch | ILN |
| 18:28 UTC | 21:30 UTC | Flood Advisory | ILN |
| 18:42 UTC | 19:30 UTC | Severe Thunderstorm Warning | ILN |
| 19:01 UTC | 22:00 UTC | Flood Advisory | ILN |
| 19:42 UTC | 22:45 UTC | Flash Flood 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 Enhanced Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 12:26 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
2.1 hours before the tornado, 90 km from the path. August 11, 2026.
- Mixed-layer CAPE
- 3952 J/kg
- Mixed-layer CIN
- -27 J/kg
- Surface CAPE
- 2863 J/kg
- Mixed-layer LCL
- 708 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 144 m²/s²
- 0-3 km storm-relative helicity
- 188 m²/s²
- Significant tornado parameter
- 2.4
- Supercell composite
- 13.3
- 0-3 km lapse rate
- 5.3 K/km
Cncnati-Daytn, OH (KILN), 00:00Z
9.9 hours after it, 90 km from the path. August 12, 2026.
- Mixed-layer CAPE
- 12 J/kg
- Mixed-layer CIN
- -355 J/kg
- Surface CAPE
- 148 J/kg
- Mixed-layer LCL
- 997 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 258 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
- 0-3 km lapse rate
- 4.4 K/km
The radar
The Cincinnati radar (KILN), 92 km away, was scanning. The volume nearest the touchdown began at 14:04 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 |
|---|---|---|---|---|
| 13:31 UTC | TSTM WND DMG | 3 Sw Mutual | Champaign, OH | Numerous trees down on Everett Road property. Possible tornado. |
| 13:33 UTC | TORNADO | 1 Wsw Catawba | Clark, OH | EF2 tornado confirmed south of Catawba in Clark County, Ohio. Maximum winds of 115 MPH. One home had its roof completely removed. Several outbuildings were damaged. |
| 13:36 UTC | TSTM WND DMG | Catawba | Clark, OH | Several trees downed in the village of Catawba. |
| 13:42 UTC | TSTM WND DMG | Choctaw Lake | Madison, OH | Numerous trees down in Choctaw Lake. Possible tornado. |
| 13:42 UTC | TSTM WND DMG | Choctaw Lake | Madison, OH | Numerous trees down on east side of Choctaw Lake. |
| 13:44 UTC | TORNADO | 1 N Choctaw Lake | Madison, OH | EF1 tornado confirmed on the northwest side of Choctaw Lake in Madison County, Ohio. Maximum winds of 90 MPH. Damage to numerous trees, with minor damage to a few homes. |
| 13:48 UTC | TSTM WND DMG | 5 Ssw Plain City | Madison, OH | Trees and power lines down on US42 property. |
| 13:50 UTC | TSTM WND DMG | 3 Sse Plain City | Madison, OH | Barn destroyed at Nursery. |
| 13:51 UTC | TORNADO | 2 Sse Plain City | Madison, OH | EF0 tornado confirmed southeast of Plain City, Ohio. Maximum winds of 80 MPH. Tree and barn damage was observed along the path of the tornado. |
| 13:53 UTC | TSTM WND DMG | 5 Ese London | Madison, OH | An unattached garage had part of its roof uplifted on Jones Marsh Road. One tree uprooted and several large branches downed. |
| 13:55 UTC | TSTM WND DMG | Hilliard | Franklin, OH | Numerous tree limbs down in Hilliard center. |
| 13:58 UTC | TSTM WND DMG | 1 E Hilliard | Franklin, OH | Large tree downed along 4000 block of Leap Road. Time estimated by radar. |
| 13:58 UTC | TSTM WND DMG | 2 Ene Hilliard | Franklin, OH | Numerous trees were snapped or had significant limb damage throughout the neighborhood in between Trueman Boulevard and Dublin Road. |
| 13:58 UTC | TSTM WND DMG | 2 Ene Hilliard | Franklin, OH | Uprooted tree. |
| 13:58 UTC | TSTM WND DMG | 2 Sw Dublin | Franklin, OH | Numerous trees down and roof damage to buildings between Frantz and Blazer. |
| 13:58 UTC | TSTM WND DMG | 3 Ene Hilliard | Franklin, OH | Basketball pole snapped on Ridgewood Drive. |
| 14:00 UTC | TSTM WND DMG | 1 Ssw Dublin | Franklin, OH | Large tree uprooted at Rings Road and Settlers Place. |
| 14:00 UTC | TSTM WND DMG | 3 Se Reynoldsburg | Fairfield, OH | Limb down on Oakmere Drive. |
| 14:00 UTC | TSTM WND DMG | 3 Se Reynoldsburg | Fairfield, OH | tree limbs down. |
| 14:02 UTC | TSTM WND DMG | 1 Nnw Upper Arlington | Franklin, OH | Downed trees at Reed and McCoy. |
| 14:02 UTC | TSTM WND DMG | 2 Ese Dublin | Franklin, OH | Structural damage to Medcomm building. |
| 14:02 UTC | TSTM WND DMG | 3 Se Dublin | Franklin, OH | Tree downed and lamp post bent on Sandman Drive near Case Road. |
| 14:02 UTC | TSTM WND DMG | Upper Arlington | Franklin, OH | Numerous trees down on Kentwell Road. |
| 14:03 UTC | TSTM WND DMG | 2 Ese Upper Arlington | Franklin, OH | Trees down on cars on Ackerman and Fred Taylor. |
| 14:04 UTC | TSTM WND DMG | Upper Arlington | Franklin, OH | Numerous trees down on Northwest BLVD and Zollinger. |
| 14:05 UTC | TSTM WND GST 65 | 1 E Hilliard | Franklin, OH | |
| 14:05 UTC | TORNADO | 1 Ese Upper Arlington | Franklin, OH | *** 2 INJ *** EF0 tornado confirmed east of Upper Arlington in Franklin County, Ohio. Maximum wind of 80 MPH. Tree and structure damage was observed along the path of the tornado. |
| 14:05 UTC | TORNADO | 2 Sse Downtown Columbus | Franklin, OH | EF-1 tornado in south Columbus. Path length 1.8 miles, width 100 yards. |
| 14:08 UTC | TSTM WND DMG | 1 Nw Blacklick Estates | Franklin, OH | Church steeple bent from winds. |
| 14:08 UTC | TSTM WND DMG | 1 Nw Blacklick Estates | Franklin, OH | Numerous small branches down. Photos posted on social media. |
| 14:08 UTC | TSTM WND DMG | 2 Nw Blacklick Estates | Franklin, OH | Trees down, fence damaged on Hinman Avenue property. |
| 14:08 UTC | TSTM WND DMG | 3 E Upper Arlington | Franklin, OH | Corrects previous tstm wnd dmg report from 3 E Upper Arlington. Video from ODOT shows car being flipped over by winds on I-71 near Weber Road. |
| 14:08 UTC | TSTM WND DMG | 3 E Upper Arlington | Franklin, OH | Video shows car blown over by wind gusts on I-71 and Weber camera. Possible tornado. |
| 14:08 UTC | TSTM WND DMG | 3 E Upper Arlington | Franklin, OH | Corrects previous tstm wnd dmg report from 3 E Upper Arlington. Windows blown out of home on Homecroft Drive. |
| 14:08 UTC | TSTM WND DMG | 3 E Upper Arlington | Franklin, OH | Windows blown out of home on Homecroft Drive. Possible tornado. |
| 14:08 UTC | TORNADO | 1 E Downtown Columbus | Franklin, OH | EF1 tornado confirmed in Olde Towne East. Maximum winds of 90 MPH. Tree and structure damage was observed along the path of the tornado. |
| 14:10 UTC | TSTM WND DMG | 1 W Bexley | Franklin, OH | Concentrated area of tree damage and roof damage near Franklin Park neighborhood. |
| 14:10 UTC | TSTM WND DMG | 2 Nne Darbyville | Pickaway, OH | Several power poles downed across Matville Road north of Carpenter Road. |
| 14:10 UTC | TSTM WND DMG | 5 Ene Powell | Delaware, OH | Roof damage to building. |
| 14:14 UTC | FLOOD | 2 Ene Upper Arlington | Franklin, OH | Road flooded. |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2026 tornado in OhioEvery tornado in Ohio since 1950Warnings in force in Ohio nowThe forecast where you are
The other tornadoes of August 11, 2026
28 more have been surveyed in the United States that day, so far.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| August 11 | 7:58 AM EDT | EF0 | Jay, IN | 0.6 | 15 | |||
| August 11 | 7:31 AM CDT | EF1 | Delaware, IA | 2.4 | 150 | |||
| August 11 | 7:44 AM CDT | EF1 | Delaware, IA | 1.5 | 100 | |||
| August 11 | 7:45 AM CDT | EF1 | Delaware, IA | 2.6 | 75 | |||
| August 11 | 9:24 AM EDT | EF0 | Clark, OH | 4.5 | 150 | |||
| August 11 | 8:29 AM CDT | EF0 | Clinton, IA | 0.3 | 0 | |||
| August 11 | 9:30 AM EDT | EF1 | Champaign, OH | 3.6 | 200 | |||
| August 11 | 9:31 AM EDT | EF1 | Clark, OH | 9.2 | 200 | |||
| August 11 | 9:33 AM EDT | EF2 | Clark, OH | 3.5 | 400 | |||
| August 11 | 9:44 AM EDT | EF1 | Madison, OH | 0.8 | 125 | |||
| August 11 | 9:51 AM EDT | EF0 | Madison, OH | 1.2 | 100 | |||
| August 11 | 10:05 AM EDT | EF0 | Franklin, OH | 2.7 | 150 | 2 | ||
| August 11 | 10:08 AM EDT | EF1 | Franklin, OH | 1.3 | 150 | |||
| August 11 | 10:14 AM CDT | EF0 | Kendall, IL | 5.4 | 150 | |||
| August 11 | 10:20 AM CDT | EF0 | Grundy, IL | 1.6 | 250 | |||
| August 11 | 10:23 AM CDT | EF0 | Grundy, IL | 2.2 | 150 | |||
| August 11 | 10:37 AM CDT | EF1 | Will, IL | 1.5 | 150 | |||
| August 11 | 10:39 AM CDT | EF1 | Will, IL | 7.6 | 200 | |||
| August 11 | 10:41 AM CDT | EF1 | Cook, IL to IN | 22.5 | 300 | |||
| August 11 | 10:43 AM CDT | EF2 | Will, IL to IN | 26.2 | 500 | |||
| August 11 | 10:55 AM CDT | EF1 | Cook, IL | 3.3 | 300 | |||
| August 11 | 3:13 PM EDT | EF1 | Butler, OH | 11.3 | 500 | |||
| August 11 | 3:47 PM EDT | EF0 | Clermont, OH | 5.2 | 200 | |||
| August 11 | 3:49 PM EDT | EF0 | Clermont, OH | 5.5 | 150 | |||
| August 11 | 3:51 PM EDT | EF0 | Boone, KY | 2.9 | 150 | |||
| August 11 | 3:56 PM EDT | EF0 | Brown, OH | 6.4 | 200 | |||
| August 11 | 3:12 PM CDT | EF1 | Piatt, IL | 22.5 | 800 | |||
| August 11 | 4:16 PM EDT | EF1 | Brown, OH | 7.1 | 350 |
What this means
Ratings are the survey's, read off the damage rather than measured; the rating scale is above. A survey can be revised, so the rating, the path and the casualties can all still change.
Sources
NWS Damage Assessment Toolkit, the record the survey teams file from the damage, and NOAA Storm Prediction Center storm reports. Neither is the official database for 2026, which SPC publishes in the spring of 2027.