Tornadoes · United States · Nebraska · 2024

Unrated tornado, Roscoe to Madrid, Nebraska, May 23, 2024

From Roscoe to Madrid, this Unrated tornado ran 6.4 miles across Keith and Perkins counties on May 23, 2024, touching down at 6:17 PM MDT and reaching 25 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
May 23, 2024
Touchdown
6:17 PM MDT (00:17 UTC)
Lifted
6:30 PM MDT (00:30 UTC)
On the ground
13 minutes
Path length
6.4 miles (10.3 km)
Path width
25 yards (23 m)
Deaths
0
Injuries
0
Counties
Keith and Perkins counties
Touchdown point
41.034, -101.576
Lift-off point
40.976, -101.480
Record number
2405231817-01

The damage survey

2 damage points were recorded along this path by NWS LBF, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 70 mph.

  • Multiple videos and photos received of a brief tornado over rangeland west of Ogallala. No damage was observed. Time and location based on radar evidence.
  • 7 leg center pivot irrigation system flipped, last point of damage and sighting of tornado

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

Thunderstorms developed over the central Nebraska Panhandle during the mid afternoon hours of May 23rd. As this activity moved east into better moisture and wind shear, storms became severe. Large hail, damaging winds, and tornadoes were reported.

Tornado touched down in an open draw and tracked approximately 6 miles to the southeast where it dissipated. No damage was observed and timing was based on radar.

Tornado touched down in an open draw and tracked approximately 6 miles to the southeast where it dissipated. No damage was observed and timing was based on radar.

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

The warnings

25 minutes of warning. NWS LBF issued a tornado warning for this county at 23:52 UTC, 25 minutes before the tornado touched down, in force until 00:30 UTC.

The county was under a severe thunderstorm watch, issued at 20:25 UTC and running to 04:00 UTC.

Issued (UTC)ExpiredProductOffice
20:25 UTC04:00 UTCSevere Thunderstorm WatchLBF
22:30 UTC23:15 UTCSevere Thunderstorm WarningLBF
22:55 UTC23:30 UTCTornado WarningLBF
23:26 UTC00:15 UTCSevere Thunderstorm WarningLBF
23:29 UTC00:04 UTCTornado WarningLBF
23:30 UTC00:15 UTCTornado WarningLBF
23:51 UTC00:15 UTCTornado WarningLBF
23:52 UTC00:30 UTCTornado WarningLBF
23:57 UTC00:45 UTCSevere Thunderstorm WarningLBF
00:07 UTC00:30 UTCTornado WarningLBF
00:25 UTC01:15 UTCTornado WarningLBF
00:42 UTC01:30 UTCSevere Thunderstorm WarningLBF

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 Marginal Risk. The outlook in force was issued at 19:50 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.

N. Platte/Lee Bi, NE (KLBF), 00:00Z

0.3 hours before the tornado, 79 km from the path. May 24, 2024.

Skew-T log-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 2024-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1132 joules per kilogram, CIN -151, lifted condensation level 1257 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, N. Platte/Lee Bi, NE at 00:00Z on 2024-05-24The 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 40 square meters per square second, 0 to 6 km bulk shear 31 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
1132 J/kg
Mixed-layer CIN
-151 J/kg
Surface CAPE
2114 J/kg
Mixed-layer LCL
1257 m above ground
0-6 km bulk shear
31 kt
0-1 km bulk shear
10 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8
0-3 km lapse rate
7.4 K/km

Open this sounding in Storm Lab

N. Platte/Lee Bi, NE (KLBF), 12:00Z

11.7 hours after it, 79 km from the path. May 24, 2024.

Skew-T log-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 12:00Z on 2024-05-24Temperature 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 -107900, lifted condensation level 1203 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 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, N. Platte/Lee Bi, NE at 12:00Z on 2024-05-24The 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 -198 square meters per square second, 0 to 6 km bulk shear 61 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
0 J/kg
Mixed-layer CIN
-107900 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
1203 m above ground
0-6 km bulk shear
61 kt
0-1 km bulk shear
42 kt
0-1 km storm-relative helicity
-198 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
3.5 K/km

Open this sounding in Storm Lab

The surface observations

Grant (GGF), 23 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
22:35 UTC7760.8130° 22 kt31999
22:55 UTC7760.8140° 26 kt35998.3
23:15 UTC7760.8140° 26 kt37997.6
23:35 UTC73.460.8130° 25 kt35997
23:55 UTC73.459160° 28 kt42994.9VCTS HZ
00:15 UTC64.457.2290° 21 kt39999.3+TSRA HZ
00:35 UTC60.859350° 19 kt331001TS
00:55 UTC60.859330° 29 kt351001.7TS
01:15 UTC5953.6350° 28 kt391003VCTS
01:35 UTC5950340° 28 kt431004.4
01:55 UTC5948.2340° 23 kt371004.7
02:15 UTC55.442.8340° 23 kt401005.4

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

The radar

The North Platte radar (KLNX), 132 km away, was scanning. The volume nearest the touchdown began at 00:16 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
22:58 UTCTORNADO5 Ese LewellenKeith, NETornado reported by NWS employee.
23:35 UTCTORNADO2 Wsw BruleKeith, NETrained spotter reported a tornado.
23:40 UTCTORNADO2 Ese LemoyneKeith, NENorth shore of Lake Maconaughy. Fire department reports 22 buildings destroyed, including homes, outbuildings and shops. 39 homes damaged. One camper destroyed at beach access 17. One camper destroyed at beach access 13.
23:46 UTCHAIL 1.5BruleKeith, NEFire department reported ping pong sized hail in Brule.
23:49 UTCFUNNEL CLOUD1 S OgallalaKeith, NE
23:53 UTCHAIL 1OgallalaKeith, NE
23:54 UTCTSTM WND GST 65LemoyneKeith, NEFire Dept estimates 65 mph winds.
23:55 UTCHAIL 1LemoyneKeith, NEQuarter sized hail at the fire department.
23:56 UTCHAIL 11 S OgallalaKeith, NEReport from mPING: Quarter (1.00 in.).
23:56 UTCHAIL 2.751 S OgallalaKeith, NEReport from mPING: Baseball (2.75 in.).
23:56 UTCHAIL 2.751 Sse OgallalaKeith, NEReport from mping.
00:18 UTCTORNADO4 Ene GrantPerkins, NEPublic report of a tornado.
00:28 UTCTORNADO8 S PaxtonKeith, NEReport via social media.
00:29 UTCTORNADO6 Nne GraintonLincoln, NELaw enforcement reports a tornado 6 NW of Wallace.
00:54 UTCHAIL 16 Sse PaxtonKeith, NE
00:59 UTCHAIL 34 E MadridPerkins, NEReport of 3.5 inch measured hail from storm chaser.
01:05 UTCHAIL 19 Ssw GraintonPerkins, NE
01:13 UTCHAIL 0.88WallaceLincoln, NEFire Department in Wallace reporting Nickel sized hail.
01:16 UTCHAIL 12 Ne GraintonPerkins, NE
01:19 UTCHAIL 1.253 Sw WallaceLincoln, NE
01:25 UTCTORNADO10 Sse GraintonHayes, NETrained spotter reports tornado.
02:03 UTCTORNADO8 S North PlatteLincoln, NETrained spotter reports tornado 2 miles south of Lake Maloney.
02:06 UTCHAIL 19 S North PlatteLincoln, NEReport of quarter size hail 3 miles south of Lake Maloney.

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 NebraskaEvery tornado in Nebraska since 1950Warnings in force in Nebraska nowThe forecast where you are

The other tornadoes of May 23, 2024

26 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 233:36 PM MDTEF1Keith, NE2.0200$450,000
May 234:39 PM CDTUnratedBell, TX0.020
May 234:15 PM MDTUnratedGarden, NE0.050
May 235:27 PM CDTEF1Falls, TX2.81502$275,000
May 235:47 PM CDTEF0Falls, TX18.5400$500
May 235:12 PM MDTUnratedKeith, NE0.125
May 236:14 PM CDTEF0Falls, TX16.0300
May 236:17 PM CDTEF0Harmon, OK0.820
May 235:28 PM MDTUnratedAdams, ND0.250
May 235:29 PM MDTEF1Keith, NE5.2430$600,000
May 235:36 PM MDTEF1Keith, NE0.125$50,000
May 235:37 PM MDTEF1Keith, NE0.350$5,000
May 235:39 PM MDTEF2Keith, NE0.3200$3.5 million
May 235:44 PM MDTEF0Keith, NE0.125$20,000
May 237:04 PM CDTEF2Jackson, OK15.12,000$300,000
May 237:06 PM CDTEF1Henderson, TX4.34806$300,000
May 237:15 PM CDTEF0Robertson, TX14.9300
May 237:25 PM CDTEF0Jackson, OK0.940$10,000
May 238:25 PM CDTUnratedHayes, NE0.025
May 239:02 PM CDTEF1Hitchcock, NE0.380
May 239:30 PM CDTEF0Red Willow, NE0.428$1,000
May 2311:30 PM CDTEF1Phelps, NE1.7100$200,000
May 2311:51 PM CDTEF0Kearney, NE4.375$75,000
May 2312:00 AM CDTEF0Kearney, NE8.460$350,000
May 2312:08 AM CDTEF1Howard, NE7.095$75,000
May 2312:26 AM CDTEF1Adams, NE2.580$400,000

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.