Tornadoes · United States · Oklahoma · 2026
EF0 tornado, Dale to Aydelotte, Oklahoma, April 3, 2026
From Dale to Aydelotte, this EF0 tornado ran 4.6 miles across Pottawatomie County on April 3, 2026, touching down at 9:47 PM CDT. It killed nobody.
Preliminary. This is NWS OUN's damage survey, filed in the Damage Assessment Toolkit as Dale 1. 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 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 survey
- Rating, as surveyed
- EF0, preliminary
- Date
- April 3, 2026
- Touchdown
- 9:47 PM CDT (02:47 UTC)
- Lifted
- 9:51 PM CDT (02:51 UTC)
- On the ground
- 4 minutes
- Path length
- 4.6 miles (7.4 km)
- Path width
- 0 yards (0 m)
- Deaths
- 0
- Injuries
- 0
- County
- Pottawatomie County
- Touchdown point
- 35.390, -97.060
- Lift-off point
- 35.411, -96.990
- Highest wind the damage implies
- 80 mph
- Surveyed by
- NWS OUN
- The office's name for it
- Dale 1
- Survey last edited
- April 25, 2026
- Record number
- None yet. SPC numbers 2026 in the spring of 2027.
What the survey found
The first of two tornadoes began west of Dale and north of I-40, near S3340 Road.
This tornado produced sporadic damage between I-40 and Westech Road,
just south of Dale. Damage to trees and a few power lines was noted
as the tornado curved to the northeast. A tree was uprooted just south
of Garretts Lake Road and US Highway 177 north of Shawnee. The tornado
dissipated a short time later. The event time is estimated from radar.
Written by NWS OUN in the NWS Damage Assessment Toolkit. A survey is revised as better evidence arrives.
What the Weather Service recorded
A high-amplitude (closed) upper storm system moved eastward across the Rockies on the 3rd and fostered a severe convective episode across portions of Oklahoma and western-north Texas. Initial thunderstorm development during the afternoon focused along a cold front from southwest into north-central Oklahoma, with a mix of multicell and supercell storm modes producing hail. Later in the evening, an intense complex of thunderstorms moved from west-central into east-central Oklahoma, including across the Oklahoma City Metropolitan area. This cluster produced swaths of damaging winds and several tornadoes. By the late evening, increasing frontal thunderstorms moved towards the Red River, producing intermittent wind gusts/damage and flooding.
The first of two tornadoes in Pottawatomie County began west of Dale and north of I-40, near S3340 Road. This tornado produced sporadic damage between I-40 and Westech Road, just south of Dale. Damage to trees and a few power lines was noted |as the tornado curved to the northeast. A tree was uprooted just south |of Garretts Lake Road and US Highway 177 north of Shawnee. The tornado |dissipated a short time later.
A few minutes after the tornado near Dale dissipated, a separate circulation was noted on radar, which tightened and moved to the south and southeast. This tornado likely began northwest of the Leo Avenue and Wolverine Road intersection. While moving to the southeast, sporadic EF0 damage to trees was noted on Leo Avenue, north of Garretts Lake Road. EF1 damage was assessed to a gas station awning along Oklahoma State Highway 18 and Westech Road.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
27 minutes of warning. NWS OUN issued a tornado warning for this county at 02:20 UTC, 27 minutes before the tornado touched down, in force until 03:00 UTC.
The county was under a severe thunderstorm watch, issued at 02:43 UTC and running to 06:55 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 19:37 UTC | 02:43 UTC | Severe Thunderstorm Watch | OUN |
| 21:00 UTC | 15:00 UTC | Flood Watch | OUN |
| 02:08 UTC | 03:00 UTC | Severe Thunderstorm Warning | OUN |
| 02:20 UTC | 03:00 UTC | Tornado Warning | OUN |
| 02:30 UTC | 03:15 UTC | Tornado Warning | OUN |
| 02:41 UTC | 03:30 UTC | Severe Thunderstorm Warning | OUN |
| 02:43 UTC | 06:55 UTC | Severe Thunderstorm Watch | OUN |
| 03:10 UTC | 03:30 UTC | Tornado Warning | OUN |
| 03:24 UTC | 03:42 UTC | Severe Thunderstorm Warning | OUN |
| 10:01 UTC | 11:02 UTC | Flood Advisory | OUN |
| 11:01 UTC | 18:46 UTC | Flood Warning | OUN |
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 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 00:56 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.
Norman, OK (KOUN), 00:00Z
2.8 hours before the tornado, 40 km from the path. April 4, 2026.
- Mixed-layer CAPE
- 2098 J/kg
- Mixed-layer CIN
- -10 J/kg
- Surface CAPE
- 2810 J/kg
- Mixed-layer LCL
- 903 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 8.5
- 0-3 km lapse rate
- 7.0 K/km
Norman, OK (KOUN), 12:00Z
9.2 hours after it, 40 km from the path. April 4, 2026.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- -89651 J/kg
- Surface CAPE
- 0 J/kg
- Mixed-layer LCL
- 1268 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -427 m²/s²
- 0-3 km storm-relative helicity
- -193 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 3.4 K/km
The radar
The Norman radar (KTLX), 24 km away, was scanning. The volume nearest the touchdown began at 02:47 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 |
|---|---|---|---|---|
| 02:02 UTC | TORNADO | 6 W Valley Brook | Oklahoma, OK | Delayed report. A tornado developed just east of Will Rogers International Airport and moved southeast across adjacent neighborhoods. The most significant damage occurred on the campus of Oklahoma City Community College, |
| 02:03 UTC | TSTM WND GST 63 | 7 Wsw Valley Brook | Oklahoma, OK | |
| 02:05 UTC | TSTM WND DMG | 3 W Moore | Cleveland, OK | Downed trees. |
| 02:05 UTC | TSTM WND DMG | 5 Wsw Moore | Cleveland, OK | Delayed report. Social media image showing a large tree snapped in half. Time estimated by radar. |
| 02:07 UTC | TSTM WND DMG | 4 Sw Oklahoma City | Oklahoma, OK | Downed powerlines. |
| 02:08 UTC | TSTM WND DMG | 2 Ssw Moore | Cleveland, OK | Delayed report. Social media image of a large tree limb blown down. Time estimated by radar. |
| 02:12 UTC | TSTM WND DMG | 2 Ssw Nichols Hills | Oklahoma, OK | Downed powerlines. |
| 02:15 UTC | TSTM WND DMG | 2 Ene Valley Brook | Oklahoma, OK | Downed powerlines. |
| 02:15 UTC | TSTM WND DMG | 2 S Del City | Oklahoma, OK | Downed powerlines. |
| 02:20 UTC | TSTM WND DMG | 1 Nw Norman | Cleveland, OK | Delayed report. Social media image of a tree uprooted. Location is approximate and time is estimated by radar. |
| 02:20 UTC | FLASH FLOOD | 3 Se Warr Acres | Oklahoma, OK | Delayed report. Shared image showing significant roadway flooding near the intersection of NW 23rd and Drexel Boulevard. |
| 02:23 UTC | TSTM WND DMG | 2 E Norman | Cleveland, OK | Delayed report. Trees blown down. Time estimated by radar. |
| 02:25 UTC | TSTM WND DMG | 2 Wsw Tinker Air Force | Oklahoma, OK | Damaged powerlines. |
| 02:25 UTC | TSTM WND GST 80 | 3 Sw Tinker Air Force B | Cleveland, OK | |
| 02:27 UTC | TSTM WND DMG | 1 Ne Midwest City | Oklahoma, OK | Delayed report. Social media report of trees down near Reno Avenue and Woodside Drive. Time estimated by radar. |
| 02:30 UTC | FLASH FLOOD | 3 W Oklahoma City | Oklahoma, OK | Delayed report. A swift water rescue occurred near the intersection of NW 5th St and Miller Ave. Time is estimated. |
| 02:41 UTC | TORNADO | 1 W Dale | Pottawatomie, OK | Delayed report. A tornado damaged trees and powerlines. Time estimated by radar. |
| 02:43 UTC | TSTM WND DMG | 3 S Harrah | Oklahoma, OK | Delayed report. Social media report of a tree blown down along South Harrah Road. Time estimated by radar. |
| 02:50 UTC | TSTM WND GST 75 | 4 Nw Shawnee | Pottawatomie, OK | Estimated 70 to 75 mph winds. |
| 02:56 UTC | TORNADO | 3 Wsw Aydelotte | Pottawatomie, OK | Delayed report. A tornado produced mainly sporadic tree damage along a southeast path. The most significant damage occurred near Oklahoma Highway 18 and Westech Road, where a gas station awning was significantly damaged. |
| 03:00 UTC | TSTM WND GST 62 | 3 Nnw Shawnee | Pottawatomie, OK | |
| 03:07 UTC | TORNADO | 5 Wnw Little | Seminole, OK | Corrects previous tornado report from 5 WNW Little. A tornado damaged trees and powerlines. Time estimated by radar. |
| 03:09 UTC | TORNADO | 5 Wnw Little | Seminole, OK | Tornado debris signature on KTLX radar. |
| 03:12 UTC | TSTM WND GST 81 | 3 N Little | Seminole, OK |
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 OklahomaEvery tornado in Oklahoma since 1950Warnings in force in Oklahoma nowThe forecast where you are
The other tornadoes of April 3, 2026
5 more have been surveyed in the United States that day, so far.
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.