Tornadoes · United States · Oklahoma · 2023
Unrated tornado, Carter Nine, Oklahoma, January 2, 2023
This Unrated tornado ran 0.1 miles across Osage County on January 2, 2023, touching down at 4:37 PM CST and reaching 100 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.
EF065 to 85 mph
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.
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
- January 2, 2023
- Touchdown
- 4:37 PM CST (22:37 UTC)
- Lifted
- 4:38 PM CST (22:38 UTC)
- On the ground
- 1 minutes
- Path length
- 0.1 miles (0.2 km)
- Path width
- 100 yards (91 m)
- Deaths
- 0
- Injuries
- 0
- County
- Osage County
- Touchdown point
- 36.722, -96.619
- Lift-off point
- 36.722, -96.617
- Record number
- 2301021637-01
What the Weather Service recorded
Unseasonably warm, moist, and unstable air was in place across eastern Oklahoma on January 2nd, ahead of an approaching cold front and strong upper level disturbance. Strong to severe thunderstorms developed into and across eastern Oklahoma during the|afternoon and evening. The moderately unstable air combined with strong deep-layer and low-level wind shear resulted in the evolution of some of the thunderstorms into supercells. Several of these supercells produced tornadoes, along with large hail up to ping pong ball size and damaging wind gusts.
A tornado was witnessed by multiple people from multiple locations. The tornado was over open country, and no known damage occurred.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.
The county was under a tornado watch, issued at 21:34 UTC and running to 01:06 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 21:34 UTC | 01:06 UTC | Tornado Watch | TSA |
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 19:58 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), 12:00Z
10.6 hours before the tornado, 181 km from the path. January 2, 2023.
- Mixed-layer CAPE
- 8 J/kg
- Mixed-layer CIN
- -399 J/kg
- Surface CAPE
- 0 J/kg
- Mixed-layer LCL
- 1122 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 191 m²/s²
- 0-3 km storm-relative helicity
- 245 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 3.8 K/km
Norman, OK (KOUN), 00:00Z
1.4 hours after it, 181 km from the path. January 3, 2023.
- Mixed-layer CAPE
- 1112 J/kg
- Mixed-layer CIN
- -26 J/kg
- Surface CAPE
- 1467 J/kg
- Mixed-layer LCL
- 965 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.4
- 0-3 km lapse rate
- 6.7 K/km
The surface observations
Ponca City Municipal (PNC), 43 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 20:41 UTC | 66 | 61 | 130° 4 kt | 1001.7 | ||
| 20:45 UTC | 130° 2 kt | 1001.4 | ||||
| 20:50 UTC | 0° 0 kt | 1001.4 | ||||
| 20:53 UTC | 67 | 61 | 170° 4 kt | 1001.7 | ||
| 20:55 UTC | 170° 4 kt | 1001.7 | ||||
| 21:00 UTC | 160° 7 kt | 1002 | ||||
| 21:05 UTC | 160° 9 kt | 1001.7 | ||||
| 21:15 UTC | 160° 7 kt | 1002 | ||||
| 21:20 UTC | 170° 5 kt | 1002 | ||||
| 21:25 UTC | 170° 5 kt | 1002 | ||||
| 21:30 UTC | 160° 5 kt | 1002 | ||||
| 21:40 UTC | 150° 5 kt | 1001.7 | ||||
| 21:45 UTC | 150° 7 kt | 1001.7 | ||||
| 21:50 UTC | 150° 5 kt | 1001.7 | ||||
| 21:53 UTC | 66 | 61 | 150° 7 kt | 1001.4 | ||
| 21:55 UTC | 150° 5 kt | 1001.4 | ||||
| 22:00 UTC | 160° 4 kt | 1001.4 | ||||
| 22:05 UTC | 150° 5 kt | 1001 | ||||
| 22:10 UTC | 150° 5 kt | 1001 | ||||
| 22:15 UTC | 140° 7 kt | 1001.4 | ||||
| 22:20 UTC | 140° 8 kt | 1001.4 | ||||
| 22:30 UTC | 140° 5 kt | 1001.4 | ||||
| 22:35 UTC | 150° 5 kt | 1001.7 | ||||
| 22:40 UTC | 150° 4 kt | 1001.7 | ||||
| 22:45 UTC | 170° 5 kt | 1001.7 | ||||
| 22:53 UTC | 66 | 61 | 170° 5 kt | 1001.7 | ||
| 22:55 UTC | 170° 5 kt | 1001.4 | ||||
| 23:00 UTC | 170° 5 kt | 1001.4 | ||||
| 23:05 UTC | 170° 5 kt | 1001.4 | ||||
| 23:10 UTC | 180° 5 kt | 1001.4 | ||||
| 23:20 UTC | 180° 5 kt | 1001.4 | ||||
| 23:25 UTC | 200° 5 kt | 1001 | ||||
| 23:30 UTC | 200° 4 kt | 1001 | ||||
| 23:35 UTC | 190° 5 kt | 1001 | ||||
| 23:40 UTC | 190° 4 kt | 1001 | ||||
| 23:45 UTC | 190° 4 kt | 1001.4 | ||||
| 23:50 UTC | 180° 4 kt | 1001 | ||||
| 23:53 UTC | 63 | 59 | 180° 4 kt | 1001 | ||
| 23:55 UTC | 180° 4 kt | 1001 | ||||
| 00:05 UTC | 180° 4 kt | 1001 | ||||
| 00:10 UTC | 180° 4 kt | 1001 | ||||
| 00:15 UTC | 190° 2 kt | 1001.4 | ||||
| 00:20 UTC | 190° 2 kt | 1001.4 | BR | |||
| 00:25 UTC | 190° 4 kt | 1001.4 | BR | |||
| 00:30 UTC | 190° 2 kt | 1001.4 | BR | |||
| 00:35 UTC | 190° 2 kt | 1001.4 | BR |
From the Iowa Environmental Mesonet's archive of airport observations.
The radar
The Tulsa radar (KINX), 112 km away, was scanning. The volume nearest the touchdown began at 22:36 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 |
|---|---|---|---|---|
| 22:38 UTC | TORNADO | 5 Se Shidler | Osage, OK | A BRIEF TORNADO OCCURRED OVER OPEN COUNTRY. IT WAS OBSERVED BY SEVERAL PEOPLE FROM VARIOUS LOCATIONS. NO KNOWN DAMAGE OCCURRED, SO IT WILL BE RATED EF-UNKNOWN. |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2023 tornado in OklahomaEvery tornado in Oklahoma since 1950Warnings in force in Oklahoma nowThe forecast where you are
The other tornadoes of January 2, 2023
14 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| January 2 | 11:47 AM CST | EF1 | Union, AR | 0.2 | 350 | $25,000 | ||
| January 2 | 2:38 PM CST | EF1 | Garland, AR | 2.1 | 200 | 2 | $5.0 million | |
| January 2 | 3:11 PM CST | EF1 | Sabine Parish, LA | 5.2 | 70 | $15,000 | ||
| January 2 | 3:43 PM CST | EF0 | Red River Parish, LA | 0.3 | 50 | $10,000 | ||
| January 2 | 4:46 PM CST | EF2 | Jackson Parish, LA | 14.8 | 1,928 | 3 | $850,000 | |
| January 2 | 5:32 PM CST | EF0 | Mayes, OK | 5.3 | 700 | $50,000 | ||
| January 2 | 5:52 PM CST | EF1 | McIntosh, OK | 8.6 | 650 | $100,000 | ||
| January 2 | 6:19 PM CST | EF2 | Union Parish, LA | 3.9 | 900 | $250,000 | ||
| January 2 | 6:23 PM CST | EF1 | Ottawa, OK | 0.6 | 200 | $75,000 | ||
| January 2 | 6:36 PM CST | EF1 | Morehouse Parish, LA | 1.4 | 75 | $10,000 | ||
| January 2 | 6:40 PM CST | EF1 | Morehouse Parish, LA | 4.0 | 200 | $100,000 | ||
| January 2 | 6:54 PM CST | EF2 | Ashley, AR | 42.8 | 1,300 | $705,000 | ||
| January 2 | 7:25 PM CST | Unrated | Sequoyah, OK | 2.5 | 200 | |||
| January 2 | 9:02 PM CST | EF0 | West Carroll Parish, LA to AR | 3.8 | 250 | $120,000 |
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.