Tornadoes · United States · Oklahoma · 2024

EF0 tornado, Joy, Oklahoma, November 4, 2024

This EF0 tornado ran 0.2 miles across Murray County on November 4, 2024, touching down at 11:49 AM CST and reaching 10 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 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
November 4, 2024
Touchdown
11:49 AM CST (17:49 UTC)
Path length
0.2 miles (0.3 km)
Path width
10 yards (9 m)
Deaths
0
Injuries
0
County
Murray County
Touchdown point
34.619, -97.161
Lift-off point
34.619, -97.161
Record number
2411041149-01

What the Weather Service recorded

As the high-amplitude upper trough (the same as in episodes on the 2nd & 3rd) began to translate eastward, the final bout of a prolonged severe thunderstorm episode occurred from the early morning into early afternoon on the 4th. A small broken line of severe thunderstorms moved from southwest into central Oklahoma towards daybreak, producing a few reports of wind damage. As an attendant cold front accelerated eastward by the late morning, more thunderstorms developed, including a few supercells. A few brief/weak tornadoes and additional reports of thunderstorm wind damage were observed in south-central and eastern Oklahoma with this activity. From the late evening of the 2nd until the afternoon of the 4th, 26 tornadoes were recorded across Oklahoma, shattering the previous record for tornadoes in a single November (12, 1958).

An off-duty Storm Prediction Center employee observed a small tornado cross U.S. Highway 77 south of Wynnewood, or about 0.3 miles south of the Garvin-Murray County line. Some tree limb damage was observed.

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

The warnings

6 minutes of warning. NWS OUN issued a tornado warning for this county at 17:43 UTC, 6 minutes before the tornado touched down, in force until 18:15 UTC.

The county was under a tornado watch, issued at 16:52 UTC and running to 19:54 UTC.

Issued (UTC)ExpiredProductOffice
16:52 UTC19:54 UTCTornado WatchOUN
16:58 UTC17:30 UTCTornado WarningOUN
17:43 UTC18:15 UTCTornado 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 Enhanced Risk, with a 0.10 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 16:12 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

5.8 hours before the tornado, 70 km from the path. November 4, 2024.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 12:00Z on 2024-11-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 911 joules per kilogram, CIN -36, lifted condensation level 485 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 2024-11-04The 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 353 square meters per square second, 0 to 6 km bulk shear 83 knots.1939587897Sfc1 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
911 J/kg
Mixed-layer CIN
-36 J/kg
Surface CAPE
129 J/kg
Mixed-layer LCL
485 m above ground
0-6 km bulk shear
83 kt
0-1 km bulk shear
40 kt
0-1 km storm-relative helicity
353 m²/s²
0-3 km storm-relative helicity
313 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.3
0-3 km lapse rate
4.5 K/km

Open this sounding in Storm Lab

Norman, OK (KOUN), 00:00Z

6.2 hours after it, 70 km from the path. November 5, 2024.

Skew-T log-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2024-11-05Temperature 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 -14, lifted condensation level 876 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 2024-11-05The 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 -35 square meters per square second, 0 to 6 km bulk shear 79 knots.1939587897117Sfc1 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
-14 J/kg
Surface CAPE
25 J/kg
Mixed-layer LCL
876 m above ground
0-6 km bulk shear
79 kt
0-1 km bulk shear
5 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
-34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.2 K/km

Open this sounding in Storm Lab

The radar

The Norman radar (KTLX), 80 km away, was scanning. The volume nearest the touchdown began at 17:50 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 4, 2024

20 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
November 410:26 AM CSTEF0Cleveland, OK1.330$2,000
November 412:20 PM CSTEF1Osage, OK2.2100$40,000
November 412:47 PM CSTEF1Washington, OK0.6150$20,000
November 412:49 PM CSTEF1Rogers, OK9.6400
November 42:33 PM CSTUnratedYell, AR2.4190
November 42:34 PM CSTUnratedMuskogee, OK0.275
November 42:42 PM CSTUnratedMuskogee, OK0.175
November 42:57 PM CSTUnratedSequoyah, OK0.2100
November 43:21 PM CSTEF2Cherokee, OK to AR32.91,200$280,000
November 44:09 PM CSTUnratedJohnson, AR0.930
November 44:11 PM CSTEF1Benton, AR4.6550$40,000
November 44:53 PM CSTEF2Benton, AR3.8375$900,000
November 45:01 PM CSTEF1McCurtain, OK3.1150
November 45:40 PM CSTEF1Red River, TX7.5275
November 46:15 PM CSTEF0Stone, MO1.450$35,000
November 46:26 PM CSTEF0Douglas, MO0.050
November 46:47 PM CSTEF0Douglas, MO0.050
November 46:55 PM CSTEF0Douglas, MO0.050
November 49:28 PM CSTEF0Montgomery, MO1.925
November 49:39 PM CSTEF0Lincoln, MO6.175$5,000

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.