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.

  1. EF065 to 85 mphthis tornado

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. EF186 to 110 mph

    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 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)ExpiredProductOffice
19:37 UTC02:43 UTCSevere Thunderstorm WatchOUN
21:00 UTC15:00 UTCFlood WatchOUN
02:08 UTC03:00 UTCSevere Thunderstorm WarningOUN
02:20 UTC03:00 UTCTornado WarningOUN
02:30 UTC03:15 UTCTornado WarningOUN
02:41 UTC03:30 UTCSevere Thunderstorm WarningOUN
02:43 UTC06:55 UTCSevere Thunderstorm WatchOUN
03:10 UTC03:30 UTCTornado WarningOUN
03:24 UTC03:42 UTCSevere Thunderstorm WarningOUN
10:01 UTC11:02 UTCFlood AdvisoryOUN
11:01 UTC18:46 UTCFlood WarningOUN

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.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2026-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 2098 joules per kilogram, CIN -10, lifted condensation level 903 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Norman, OK at 00:00Z on 2026-04-04The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 152 square meters per square second, 0 to 6 km bulk shear 41 knots.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
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

Open this sounding in Storm Lab

Norman, OK (KOUN), 12:00Z

9.2 hours after it, 40 km from the path. April 4, 2026.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 12:00Z on 2026-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -89651, lifted condensation level 1268 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Norman, OK at 12:00Z on 2026-04-04The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity -427 square meters per square second, 0 to 6 km bulk shear 60 knots.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
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

Open this sounding in Storm Lab

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)ReportWhereCountyRemark
02:02 UTCTORNADO6 W Valley BrookOklahoma, OKDelayed 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 UTCTSTM WND GST 637 Wsw Valley BrookOklahoma, OK
02:05 UTCTSTM WND DMG3 W MooreCleveland, OKDowned trees.
02:05 UTCTSTM WND DMG5 Wsw MooreCleveland, OKDelayed report. Social media image showing a large tree snapped in half. Time estimated by radar.
02:07 UTCTSTM WND DMG4 Sw Oklahoma CityOklahoma, OKDowned powerlines.
02:08 UTCTSTM WND DMG2 Ssw MooreCleveland, OKDelayed report. Social media image of a large tree limb blown down. Time estimated by radar.
02:12 UTCTSTM WND DMG2 Ssw Nichols HillsOklahoma, OKDowned powerlines.
02:15 UTCTSTM WND DMG2 Ene Valley BrookOklahoma, OKDowned powerlines.
02:15 UTCTSTM WND DMG2 S Del CityOklahoma, OKDowned powerlines.
02:20 UTCTSTM WND DMG1 Nw NormanCleveland, OKDelayed report. Social media image of a tree uprooted. Location is approximate and time is estimated by radar.
02:20 UTCFLASH FLOOD3 Se Warr AcresOklahoma, OKDelayed report. Shared image showing significant roadway flooding near the intersection of NW 23rd and Drexel Boulevard.
02:23 UTCTSTM WND DMG2 E NormanCleveland, OKDelayed report. Trees blown down. Time estimated by radar.
02:25 UTCTSTM WND DMG2 Wsw Tinker Air ForceOklahoma, OKDamaged powerlines.
02:25 UTCTSTM WND GST 803 Sw Tinker Air Force BCleveland, OK
02:27 UTCTSTM WND DMG1 Ne Midwest CityOklahoma, OKDelayed report. Social media report of trees down near Reno Avenue and Woodside Drive. Time estimated by radar.
02:30 UTCFLASH FLOOD3 W Oklahoma CityOklahoma, OKDelayed report. A swift water rescue occurred near the intersection of NW 5th St and Miller Ave. Time is estimated.
02:41 UTCTORNADO1 W DalePottawatomie, OKDelayed report. A tornado damaged trees and powerlines. Time estimated by radar.
02:43 UTCTSTM WND DMG3 S HarrahOklahoma, OKDelayed report. Social media report of a tree blown down along South Harrah Road. Time estimated by radar.
02:50 UTCTSTM WND GST 754 Nw ShawneePottawatomie, OKEstimated 70 to 75 mph winds.
02:56 UTCTORNADO3 Wsw AydelottePottawatomie, OKDelayed 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 UTCTSTM WND GST 623 Nnw ShawneePottawatomie, OK
03:07 UTCTORNADO5 Wnw LittleSeminole, OKCorrects previous tornado report from 5 WNW Little. A tornado damaged trees and powerlines. Time estimated by radar.
03:09 UTCTORNADO5 Wnw LittleSeminole, OKTornado debris signature on KTLX radar.
03:12 UTCTSTM WND GST 813 N LittleSeminole, 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.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 36:00 PM CDTUnratedTazewell, IL0.20
April 39:02 PM CDTEF1Oklahoma, OK2.90
April 39:15 PM CDTEF0Oklahoma, OK2.350
April 39:57 PM CDTEF1Pottawatomie, OK3.50
April 310:06 PM CDTEF1Seminole, OK4.00

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.