Tornadoes · United States · Oklahoma · 2024

Unrated tornado, Gould to Mangum, Oklahoma, November 18, 2024

From Gould to Mangum, this Unrated tornado ran 2.7 miles across Harmon and Greer counties on November 18, 2024, touching down at 3:11 AM CST and reaching 30 yards wide. It killed nobody.

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 mph

    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. Unratedthis tornado

    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
Unrated
Date
November 18, 2024
Touchdown
3:11 AM CST (09:11 UTC)
Lifted
3:14 AM CST (09:14 UTC)
On the ground
3 minutes
Path length
2.7 miles (4.4 km)
Path width
30 yards (27 m)
Deaths
0
Injuries
0
Counties
Harmon and Greer counties
Touchdown point
34.746, -99.700
Lift-off point
34.785, -99.705
Record number
2411180311-01

The damage survey

10 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 100 mph.

  • Light debris (tin, farm chemical barrels) blown north and trapped along fence line
  • Irrigation rig overturned approx 1/3 mi s of this road
  • Small trailer overturned; light debris along road

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

An intense (90-knot) mid-level jet streak lifted from the Texas Big Bend region into the Southern High Plains early on the 18th. An extensive quasi-linear convective system (QLCS) took shape across West Texas and moved into portions of western Oklahoma and western-north Texas during this time. With anomalously strong kinematics and marginally sufficient wind shear, a few portions of the line produced reports of thunderstorm wind damage and multiple brief/weak tornadoes. With time, the convective system gradually weakened into portions of central and eastern Oklahoma, producing only sporadic wind gusts/damage by daybreak.

This tornado began south of Gould, along or just west of State Highway 5 and north of E1660 Road. The tornado moved to the north and then northwest, before dissipating just to the west of the city of Gould. Numerous power poles were snapped and broken along E1650 road, while several central pivot irrigation units sustained damage.

A Tornado Debris Signature (TDS) was observed on KFDR radar as this storm moved north from Harmon County into far southwestern Greer County west of the community of Russell. No specific damage locations were reported so this path is estimated.

A Tornado Debris Signature (TDS) was observed on KFDR radar as this storm moved north from Harmon County into far southwestern Greer County west of the community of Russell. No specific damage locations were reported so this path is estimated.

This tornado moved north into Greer County from Jackson County. Although no specific damage was reported in Greer County, a Tornado Debris Signature was observed on radar, although no specific damage locations were reported.

This tornado developed southwest of Mangum and moved north. A trailer was overturned east of Mangum and tree limb damage was also observed.

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

The surface observations

Altus (AXS), 34 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
00:00 UTC

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

The radar

The Altus AFB radar (KFDR), 80 km away, was scanning. The volume nearest the touchdown began at 09:10 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.

This ground now

The live radar over the trackEvery 2024 tornado in OklahomaEvery tornado in Oklahoma since 1950Warnings in force in Oklahoma nowThe forecast where you are

The other tornadoes of November 18, 2024

9 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
November 182:48 AM CSTEF1Harmon, OK3.450$10,000
November 182:58 AM CSTEF1Harmon, OK4.0150$15,000
November 183:09 AM CSTEF0Jackson, OK7.550
November 183:23 AM CSTEF0Greer, OK4.475$5,000
November 183:35 AM CSTUnratedGreer, OK1.430
November 183:44 AM CSTUnratedKiowa, OK3.030
November 183:48 AM CSTUnratedKiowa, OK2.430
November 184:20 AM CSTUnratedWashita, OK1.050
November 185:36 AM CSTEF1Blaine, OK1.7100$50,000

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.