Tornadoes · United States · Nebraska · 2000
F0 tornado, Elwood, Nebraska, July 20, 2000
This F0 tornado ran 0.1 miles across Gosper County on July 20, 2000, touching down at 5:55 PM CDT and reaching 10 yards wide. It killed nobody.
The rating scale
Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.
F040 to 72 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
F173 to 112 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
F2113 to 157 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.
F3158 to 206 mph
Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.
F4207 to 260 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
F5261 to 318 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
- F0
- Date
- July 20, 2000
- Touchdown
- 5:55 PM CDT (22:55 UTC)
- Path length
- 0.1 miles (0.2 km)
- Path width
- 10 yards (9 m)
- Deaths
- 0
- Injuries
- 0
- County
- Gosper County
- Touchdown point
- 40.480, -99.680
- Lift-off point
- 40.480, -99.680
- Record number
- 399
What the Weather Service recorded
A cluster of severe thunderstorms rumbled southeast across a portion of south-central Nebraska producing large hail and a brief tornado. The tornado was spotted by a deputy sheriff in southeast Gosper county. Large hail across the area did cause considerable property and crop damage from south of Bertrand to the Kansas state line south of Orleans. Reports of softball size hail were recorded south of Loomis with hail nearly as large in Holdrege. Automobiles, houses, and agricultural buildings all sustained damage in southwest Phelps county.As the storm moved southeast, it severely damaged about 33,000 acres of crop and pasture land in western Harlan county. The sheriff reported drifts along Highway 89 south of Orleans stretched for 8 miles, or to about the Kansas state line. The nearly 4 inch rain which followed the hail fell on top of 5 inches of rain just a few days earlier. Losses due to land erosion were estimated at $70,000. Ironically, this storm passed through just 3 weeks after another vicious hailstorm pummeled crops in western Harlan county. Both storms effectively wiped out any prospect of producing any significant corn or soybean crop in the western half of the county.
Brief touchdown reported by sheriff
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.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 22:12 UTC | 23:00 UTC | Severe Thunderstorm Warning | GID |
| 23:00 UTC | 23:30 UTC | Severe Thunderstorm Warning | GID |
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. The outlook in force was issued at 19:56 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), 12:00Z
10.9 hours before the tornado, 106 km from the path. July 20, 2000.
- Mixed-layer CAPE
- 480 J/kg
- Mixed-layer CIN
- -280 J/kg
- Surface CAPE
- 522 J/kg
- Mixed-layer LCL
- 1070 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
- 0-3 km lapse rate
- 4.7 K/km
N. Platte/Lee Bi, NE (KLBF), 00:00Z
1.1 hours after it, 106 km from the path. July 21, 2000.
- Mixed-layer CAPE
- 1425 J/kg
- Mixed-layer CIN
- -9 J/kg
- Surface CAPE
- 2058 J/kg
- Mixed-layer LCL
- 1198 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 214 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.7
- 0-3 km lapse rate
- 7.0 K/km
The radar
The Grand Island radar (KUEX), 106 km away, was scanning. The volume nearest the touchdown began at 22:57 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 2000 tornado in NebraskaEvery tornado in Nebraska since 1950Warnings in force in Nebraska nowThe forecast where you are
The other tornadoes of July 20, 2000
7 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| July 20 | 3:35 PM EDT | F0 | Suwannee, FL | 0.1 | 10 | $1,000 | ||
| July 20 | 1:58 PM MDT | F0 | El Paso, CO | 0.1 | 20 | |||
| July 20 | 4:10 PM CDT | F0 | Lawrence, TN | 0.1 | 20 | $2,000 | ||
| July 20 | 5:05 PM MDT | F0 | Washington, CO | 0.1 | 20 | |||
| July 20 | 5:21 PM MDT | F0 | Washington, CO | 0.1 | 20 | |||
| July 20 | 6:20 PM MDT | F0 | Baca, CO | 0.5 | 50 | |||
| July 20 | 11:21 PM CDT | F0 | Pratt, KS | 1.6 | 70 |
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.