Tornadoes · United States · Oklahoma · 2019

EF0 tornado, Warr Acres to Forest Park, Oklahoma, May 25, 2019

From Warr Acres to Forest Park, this EF0 tornado ran 0.2 miles across Oklahoma County on May 25, 2019, touching down at 10:57 PM CDT and reaching 30 yards wide. It killed nobody, and did $2,000 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.

  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 record

Rating
EF0
Date
May 25, 2019
Touchdown
10:57 PM CDT (03:57 UTC)
Path length
0.2 miles (0.3 km)
Path width
30 yards (27 m)
Deaths
0
Injuries
0
Property damage
$2,000
County
Oklahoma County
Touchdown point
35.536, -97.460
Lift-off point
35.536, -97.460
Record number
1905252157-01

The damage survey

65 damage points were recorded along this path by NWS OUN, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 94 mph.

  • Large tree leaning against house
  • tree damage. no structure damage.
  • Carport ripped off front of house.
  • Car port and roof from neaby business on top of home

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 supercells merged into a linear system that produced a variety of severe weather on the 25th.

An area of damage consistent with a narrow QLCS tornado was found within a larger swath of damaging winds. This tornado developed near NW 11th Terrace and Warren Place and moved east along and just north of Liberty Avenue to just north of Liberty Avenue and Portland Avenue. Besides trees, damage was also observed to house roofs, porches and car ports with evidence of debris lofted.

A second area consistent with a tornado was observed within a larger swath of thunderstorm wind damage as a Quasi-Linear Convective System moved through. This tornado developed just west of NW 20th Street and Blackwelder Avenue and initially moved east-northeast. Just west of Douglas Avenue, the tornado turned north until reaching NW 23rd Street, then turned east-northeast dissipating near NW 24th Street and Western Avenue. A restaurant near NW 23rd Street and Douglas suffered roof damage on the east side of the building, and windows were broken in a building that had previously housed Rainbow Records at NW 23rd and Classen. Elsewhere along the path, trees and powerlines were damaged as well as roof damage to one home, an damaged outbuilding, and street signs along NW 23rd.

Within the larger area of thunderstorm wind damage, a small tornado developed just southeast of NE 42nd Street and Kelley Avenue and moved northeast to near NE 43rd Street and Everest Avenue. A church sign was destroyed and large trees were uprooted (although in ground that was much wetter than usual after recent heavy rainfall.) One of these trees fell onto a parked car.

One final tornado embedded within a larger area of wind damage caused damage to a convenience store at NE 63rd Street and Kelley Avenue, or just southeast of the Interstate 35/Interstate 44 interchange.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

8 minutes of warning. NWS OUN issued a tornado warning for this county at 03:49 UTC, 8 minutes before the tornado touched down, in force until 04:15 UTC.

The county was under a severe thunderstorm watch, issued at 23:22 UTC and running to 06:00 UTC.

Issued (UTC)ExpiredProductOffice
18:03 UTC03:00 UTCFlood AdvisoryOUN
23:22 UTC06:00 UTCSevere Thunderstorm WatchOUN
03:12 UTC09:15 UTCFlash Flood WarningOUN
03:22 UTC04:30 UTCSevere Thunderstorm WarningOUN
03:49 UTC04:15 UTCTornado WarningOUN
04:07 UTC04:45 UTCSevere Thunderstorm WarningOUN
09:16 UTC09:15 UTCFlood WarningOUN
19:33 UTC01:32 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 00:41 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

4.0 hours before the tornado, 36 km from the path. May 26, 2019.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2019-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1531 joules per kilogram, CIN -29, lifted condensation level 1082 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 2019-05-26The 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 98 square meters per square second, 0 to 6 km bulk shear 47 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
1531 J/kg
Mixed-layer CIN
-29 J/kg
Surface CAPE
3625 J/kg
Mixed-layer LCL
1082 m above ground
0-6 km bulk shear
47 kt
0-1 km bulk shear
20 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
1.5
Supercell composite
12.6
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

Norman, OK (KOUN), 12:00Z

8.0 hours after it, 36 km from the path. May 26, 2019.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 12:00Z on 2019-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 97 joules per kilogram, CIN -335, lifted condensation level 919 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 12:00Z on 2019-05-26The 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 262 square meters per square second, 0 to 6 km bulk shear 47 knots.193958Sfc1 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
97 J/kg
Mixed-layer CIN
-335 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
919 m above ground
0-6 km bulk shear
47 kt
0-1 km bulk shear
35 kt
0-1 km storm-relative helicity
262 m²/s²
0-3 km storm-relative helicity
278 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5
0-3 km lapse rate
3.0 K/km

Open this sounding in Storm Lab

The surface observations

Tinker Afb (TIK), 15 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
02:56 UTC75.267.8110° 5 kt1015.6
03:01 UTC75.268110° 5 kt1015.6-TSRA
03:38 UTC73.469.8120° 6 kt1015.9-TSRA
03:58 UTC73.269180° 9 kt1016.6-TSRA
04:00 UTC73.469.8240° 20 kt291017.6VCTS
04:02 UTC73.468270° 29 kt351019.3TS
04:03 UTC73.468270° 31 kt441019.3TSRA
04:08 UTC69.864.4250° 13 kt441018.6+TSRA
04:11 UTC66.262.6250° 18 kt441019+TSRA
04:17 UTC64.462.6240° 16 kt231019+TSRA BR
04:21 UTC64.462.6230° 9 kt231018.3+TSRA BR
04:33 UTC64.464.4360° 9 kt1017.6+TSRA BR
04:44 UTC64.464.410° 5 kt1017.9-TSRA
04:56 UTC65.36590° 3 kt1017.9-TSRA BR
05:56 UTC64.464.4220° 6 kt1019.6-TSRA

From the Iowa Environmental Mesonet's archive of airport observations.

The radar

The Norman radar (KTLX), 28 km away, was scanning. The volume nearest the touchdown began at 03:59 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
03:26 UTCTORNADO2 S El RenoCanadian, OKTDS NOTED MINUTES LATER.
03:30 UTCTSTM WND GST 642 Ssw MincoGrady, OK
03:38 UTCTSTM WND DMG3 Ne Bridge CreekGrady, OKSOME TREE DEBRIS IN BRIDGE CREEK AREA. MOSTLY SMALL LIMBS DOWN AND ONE HANGING FROM A POWER LINE.
03:43 UTCTSTM WND DMG3 N Bridge CreekGrady, OKOVERTURNED 16X8 STORAGE BUILDING, LOCATED 1.2 MILES SOUTH OF OK37 ON MUSTANG ROAD.
03:45 UTCTSTM WND DMG3 Ene Bridge CreekGrady, OKFENCE PANELS BLOWN OVER AND SCATTERED TREE DAMAGE. TIME ESTIMATED FROM RADAR.
03:53 UTCTORNADO6 Nw Del CityOklahoma, OK
03:55 UTCTSTM WND DMG5 Nne Oklahoma CityOklahoma, OKTREE DAMAGE AT REMINGTON PARK. UPROOTED TREE AND BROKEN OFF TREE LIMBS. TWITTER REPORT WITH PICTURES. TIME ESTIMATED FROM RADAR.
04:20 UTCFLASH FLOOD2 Nw MooreCleveland, OKEXCESSIVE AMOUNT OF WATER COVERING THE ROADS BETWEEN 19TH STREET AND 27TH ST. IN MOORE ON SANTA FE. SOME AREAS AREA ARE 4 INCHES.
04:25 UTCTSTM WND DMG1 Se WellstonLincoln, OKLARGE TREES DOWN IN SOUTH EAST OF WELLSTON.
04:52 UTCFLASH FLOOD7 Ese SewardLogan, OKWATER OVER ROAD JUST NORTH OF CHARTER OAK ROAD ON DOUGLAS ROAD.
05:14 UTCFLASH FLOOD1 Nw Cimarron CityLogan, OKWATER OVER THE ROAD ABOUT A MILE WEST OF HWY 74 ON COOKSEY.
05:14 UTCFLASH FLOOD1 Wnw LangstonLogan, OKOLD HWY 33 AND HENNEY ROAD IS WASHED OUT.
05:14 UTCFLASH FLOOD4 Nnw ArcadiaLogan, OKWATER OVER THE ROAD ON WATERLOO EAST OF I-35.
05:18 UTCTSTM WND DMG2 Nne Bridge CreekGrady, OKMORE TREES DOWN AND DAMAGED ALONG TECUMSEH ROAD JUST EAST OF SARA RD IN BRIDGE CREEK.
05:18 UTCFLASH FLOOD4 Wsw Cimarron CityLogan, OKHWY 74 IS CLOSED DUE TO 1 FOOT OF WATER OVER ROADWAY.
05:44 UTCFLASH FLOOD1 Sw WellstonLincoln, OKCALLS FOR WATER RESCUES. SOUTH OF HWY 66 ON 3330 RD IN WELLSTON.
06:00 UTCFLASH FLOOD3 N GuthrieLogan, OKHWY 77 AT CIMARRON RIVER BRIDGE IS CLOSED ON THE SOUTH SIDE OF THE BRIDGE.
06:00 UTCFLASH FLOODCoyleLogan, OKCITIZENS OF COYLE BEING EVACUATED FROM FLASH FLOOD.
06:00 UTCFLASH FLOODCrescentLogan, OKBAR DITCHES ARE FULL OF WATER ON HWY 74 JUST SOUTH OF CRESCENT. ALSO ALONG HWY 74C, BUT IS PASSABLE.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2019 tornado in OklahomaEvery tornado in Oklahoma since 1950Warnings in force in Oklahoma nowThe forecast where you are

The other tornadoes of May 25, 2019

21 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 254:59 PM CDTUnratedHockley, TX1.130
May 255:39 PM CDTEF2Hale, TX1.7100$250,000
May 256:42 PM EDTEF1Carroll, OH0.550$60,000
May 256:08 PM CDTUnratedHale, TX4.6100
May 257:04 PM CDTUnratedGreer, OK0.330
May 257:14 PM CDTUnratedBeckham, OK0.250
May 258:27 PM EDTEF1Indiana, PA5.135
May 258:32 PM EDTEF0Indiana, PA0.120
May 257:40 PM CDTUnratedHall, TX0.030
May 2510:28 PM CDTEF3Canadian, OK2.275229$400,000
May 2510:46 PM CDTEF0Oklahoma, OK0.950$20,000
May 2510:49 PM CDTEF0Oklahoma, OK0.750$20,000
May 2510:53 PM CDTEF0Oklahoma, OK0.530$10,000
May 2510:56 PM CDTEF0Cleveland, OK0.730$10,000
May 2511:14 PM CDTEF1Tazewell, IL1.1200
May 2511:19 PM CDTEF1Tazewell, IL0.7150
May 2512:04 AM CDTEF1Creek, OK2.6200$40,000
May 2512:14 AM CDTEF1Creek, OK10.71,000$250,000
May 2512:21 AM CDTEF1Creek, OK12.51,400$760,000
May 2512:27 AM CDTEF1Tulsa, OK12.32,200$1.1 million
May 2512:51 AM CDTEF0Tulsa, OK1.8400$175,000

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.