Tornadoes · United States · Oklahoma · 2024
EF0 tornado, Reed to Granite, Oklahoma, November 18, 2024
From Reed to Granite, this EF0 tornado ran 4.4 miles across Greer County on November 18, 2024, touching down at 3:23 AM CST and reaching 75 yards wide. It killed nobody, and did $5,000 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.
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 record
- Rating
- EF0
- Date
- November 18, 2024
- Touchdown
- 3:23 AM CST (09:23 UTC)
- Lifted
- 3:29 AM CST (09:29 UTC)
- On the ground
- 6 minutes
- Path length
- 4.4 miles (7.1 km)
- Path width
- 75 yards (69 m)
- Deaths
- 0
- Injuries
- 0
- Property damage
- $5,000
- County
- Greer County
- Touchdown point
- 34.820, -99.465
- Lift-off point
- 34.884, -99.469
- Record number
- 2411180323-01
The damage survey
3 damage points were recorded along this path by NWS OUN, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 74 mph.
- 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.
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.
A Tornado Debris Signature was observed on KFDR radar. No specific damage locations were reported so this path is estimated.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
14 minutes of warning. NWS OUN issued a tornado warning for this county at 09:09 UTC, 14 minutes before the tornado touched down, in force until 09:45 UTC.
The county was under a tornado watch, issued at 08:03 UTC and running to 11:42 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 20:15 UTC | 19:42 UTC | Flood Advisory | OUN |
| 00:00 UTC | 14:48 UTC | Flood Watch | OUN |
| 08:03 UTC | 11:42 UTC | Tornado Watch | OUN |
| 08:41 UTC | 09:30 UTC | Severe Thunderstorm Warning | OUN |
| 08:50 UTC | 09:15 UTC | Tornado Warning | OUN |
| 09:09 UTC | 09:45 UTC | Tornado Warning | OUN |
| 09:19 UTC | 10:00 UTC | Severe Thunderstorm Warning | OUN |
| 09:38 UTC | 10:19 UTC | Tornado 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 General Thunderstorms Risk. The outlook in force was issued at 05:39 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
9.4 hours before the tornado, 193 km from the path. November 18, 2024.
- Mixed-layer CAPE
- 144 J/kg
- Mixed-layer CIN
- -58 J/kg
- Surface CAPE
- 158 J/kg
- Mixed-layer LCL
- 570 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
- 0-3 km lapse rate
- 5.0 K/km
Norman, OK (KOUN), 12:00Z
2.6 hours after it, 193 km from the path. November 18, 2024.
- Mixed-layer CAPE
- 92 J/kg
- Mixed-layer CIN
- -72 J/kg
- Surface CAPE
- 88 J/kg
- Mixed-layer LCL
- 479 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 568 m²/s²
- 0-3 km storm-relative helicity
- 706 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
- 0-3 km lapse rate
- 4.6 K/km
The surface observations
Altus (AXS), 21 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 07:35 UTC | 64.4 | 64.4 | 110° 16 kt | 1000.7 | -RA BR | |
| 07:55 UTC | 64.4 | 64.4 | 110° 16 kt | 24 | 999.7 | -RA |
| 08:15 UTC | 64.4 | 64.4 | 110° 20 kt | 998.6 | -RA BR | |
| 08:35 UTC | 64.4 | 64.4 | 110° 22 kt | 27 | 997.6 | -RA |
| 08:55 UTC | 64.4 | 64.4 | 110° 23 kt | 28 | 996.6 | -RA |
| 09:15 UTC | 64.4 | 64.4 | 110° 31 kt | 994.6 | ||
| 09:35 UTC | 59 | 57.2 | 220° 18 kt | 27 | 998 | VCTS DZ BR |
| 09:55 UTC | 59 | 59 | 210° 29 kt | 39 | 997.6 | +RA BR |
| 10:15 UTC | 59 | 59 | 210° 20 kt | 28 | 996.6 | +RA BR |
| 10:35 UTC | 60.8 | 59 | 190° 20 kt | 25 | 997.3 | -RA |
| 10:55 UTC | 59 | 59 | 210° 15 kt | 996.3 | -RA | |
| 11:15 UTC | 60.8 | 59 | 200° 16 kt | 996.6 | RA |
From the Iowa Environmental Mesonet's archive of airport observations.
The radar
The Altus AFB radar (KFDR), 71 km away, was scanning. The volume nearest the touchdown began at 09:23 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 |
|---|---|---|---|---|
| 09:00 UTC | TORNADO | 3 Ssw Gould | Harmon, OK | Tornado Debris Signature observed on KFDR radar. |
| 09:11 UTC | TORNADO | 2 Nne Duke | Jackson, OK | Tornado Debris Signature observed on KFDR radar. |
| 09:23 UTC | TORNADO | 2 Nw Hester | Greer, OK | Tornado Debris Signature observed on KFDR radar data. |
| 09:32 UTC | TORNADO | 3 Wsw Granite | Greer, OK | Tornado Debris Signature observed on KFDR radar. |
| 09:47 UTC | TORNADO | 6 S Retrop | Kiowa, OK | Tornado Debris Signature observed on KFDR radar. |
| 09:49 UTC | TORNADO | 6 Se Retrop | Kiowa, OK | Tornado Debris Signature observed on KFDR radar. |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
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.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| November 18 | 2:48 AM CST | EF1 | Harmon, OK | 3.4 | 50 | $10,000 | ||
| November 18 | 2:58 AM CST | EF1 | Harmon, OK | 4.0 | 150 | $15,000 | ||
| November 18 | 3:09 AM CST | EF0 | Jackson, OK | 7.5 | 50 | |||
| November 18 | 3:11 AM CST | Unrated | Harmon, OK | 2.7 | 30 | |||
| November 18 | 3:35 AM CST | Unrated | Greer, OK | 1.4 | 30 | |||
| November 18 | 3:44 AM CST | Unrated | Kiowa, OK | 3.0 | 30 | |||
| November 18 | 3:48 AM CST | Unrated | Kiowa, OK | 2.4 | 30 | |||
| November 18 | 4:20 AM CST | Unrated | Washita, OK | 1.0 | 50 | |||
| November 18 | 5:36 AM CST | EF1 | Blaine, OK | 1.7 | 100 | $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.