Tornadoes · United States · Nebraska · 2025

Unrated tornado, Johnstown, Nebraska, July 18, 2025

This Unrated tornado ran 0.0 miles across Brown County on July 18, 2025, touching down at 8:38 PM CDT 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 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
July 18, 2025
Touchdown
8:38 PM CDT (01:38 UTC)
Path length
0.0 miles (0.0 km)
Path width
10 yards (9 m)
Deaths
0
Injuries
0
County
Brown County
Touchdown point
42.450, -100.080
Lift-off point
42.450, -100.080
Record number
2507181938-01

The damage survey

10 damage points were recorded along this path by NWS LBF, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EFU. The highest wind the damage implies is 105 mph.

  • Tornado occurred over open terrain. No damage was reported. Multiple reports and video evidence of tornado.
  • Multiple trees snapped at base, limbs sheared from trunks. Several trees fell on power lines resulting in power pole loss. Power lines landed on roof of home and started a fire.
  • Cottonwood trees uprooted and multiple softwood limbs that were greater than 8" in diameter sheared off.
  • House fascia destroyed and multiple trees snapped.

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

Isolated thunderstorms developed along a surface boundary from Brown County, west southwest into Arthur County during the early evening hours of July 18th. Storms became severe over central Brown County, leading to three brief tornadoes. Later in the evening, quarter sized hail was reported northwest of Burwell in Garfield County.

Tornado briefly touched down over open terrain. No damage reported.

Tornado was a brief touchdown and occurred over open terrain. No damage was reported.

Tornado briefly touched down in an open field. No damage reported.

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

The warnings

17 minutes of warning. NWS LBF issued a tornado warning for this county at 01:21 UTC, 17 minutes before the tornado touched down, in force until 02:00 UTC.

The county was under a severe thunderstorm watch, issued at 01:10 UTC and running to 08:00 UTC.

Issued (UTC)ExpiredProductOffice
00:48 UTC01:30 UTCSevere Thunderstorm WarningLBF
01:10 UTC08:00 UTCSevere Thunderstorm WatchLBF
01:18 UTC02:00 UTCSevere Thunderstorm WarningLBF
01:21 UTC02:00 UTCTornado WarningLBF
01:55 UTC02:45 UTCTornado 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 Slight Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 00:47 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 radar

The North Platte radar (KLNX), 68 km away, was scanning. The volume nearest the touchdown began at 01:37 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
01:21 UTCFUNNEL CLOUD7 S JohnstownBrown, NE
01:24 UTCTORNADO7 S JohnstownBrown, NE
01:38 UTCTORNADO9 S JohnstownBrown, NE
02:20 UTCTORNADO20 S JohnstownBrown, NECorrects previous tornado report from 20 S Johnstown. Delayed Report. Video evidence of a touchdown in open field. No damage reported.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2025 tornado in NebraskaEvery tornado in Nebraska since 1950Warnings in force in Nebraska nowThe forecast where you are

The other tornadoes of July 18, 2025

2 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 188:24 PM CDTUnratedBrown, NE0.010
July 189:20 PM CDTUnratedBrown, NE0.010

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.