Tornadoes · United States · Oklahoma · 2001

F0 tornado, Balko to Elmwood, Oklahoma, April 10, 2001

From Balko to Elmwood, this F0 tornado ran 2.0 miles across Beaver County on April 10, 2001, touching down at 12:10 AM CDT and reaching 50 yards wide. It killed nobody, and did $100,000 of property damage.

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.

  1. F040 to 72 mphthis tornado

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. F173 to 112 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. 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.

  4. 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.

  5. F4207 to 260 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. 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.

  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
F0
Date
April 10, 2001
Touchdown
12:10 AM CDT (05:10 UTC)
Path length
2.0 miles (3.2 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
Property damage
$100,000
County
Beaver County
Touchdown point
36.700, -100.550
Lift-off point
36.730, -100.520
Record number
702

What the Weather Service recorded

Severe thunderstorms with large hail...damaging winds...and tornadoes affected much of the Oklahoma panhandle during the evening hours. A total of one hundred and twenty-two power poles were blown down due to the wind and tornadoes in Beaver county alone.

An official storm damage survey was made and the tornado path length and width were estimated. The tornado destroyed at least two barns...some farm equipment...uprooted large trees and snapped power poles.

An official storm damage survey was made and the tornado path length and width were estimated. The tornado did minor damage to a barn and a house with several power poles and trees blown down.

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. One was issued for the county at another hour that day.

Issued (UTC)ExpiredProductOffice
04:06 UTC05:00 UTCSevere Thunderstorm WarningAMA
04:37 UTC05:45 UTCSevere Thunderstorm WarningAMA
05:18 UTC05:45 UTCTornado WarningAMA

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 Moderate Risk. The outlook in force was issued at 00:45 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 Dodge City radar (KDDC), 127 km away, was scanning. The volume nearest the touchdown began at 05:07 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 2001 tornado in OklahomaEvery tornado in Oklahoma since 1950Warnings in force in Oklahoma nowThe forecast where you are

The other tornadoes of April 10, 2001

28 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 105:20 PM CDTF1Johnson, MO8.075$2.0 million
April 105:45 PM CDTF1Pettis, MO10.075$50,000
April 106:11 PM CDTF1Cooper, MO5.050$30,000
April 106:47 PM CDTF0Moniteau, MO0.125
April 107:20 PM CDTF1Callaway, MO3.010012$70,000
April 108:20 PM CDTF0Warren, MO0.150$20,000
April 108:30 PM CDTF0Saint Charles, MO4.050
April 108:45 PM CDTF1Saint Charles, MO1.0100$5.0 million
April 109:35 PM CDTF1Madison, IL2.01001$5.0 million
April 109:42 PM CDTF1Kearny, KS5.1150$150,000
April 1010:22 PM CDTF1Carson, TX1.5100$70,000
April 1011:06 PM CDTF2Hansford, TX4.02002$750,000
April 1011:08 PM CDTF2Trego, KS40.1400$750,000
April 1011:35 PM CDTF1Rooks, KS14.0300$100,000
April 1011:40 PM CDTF2Beaver, OK12.0200$450,000
April 1011:45 PM CDTF0Rooks, KS3.0751$100,000
April 1012:00 AM CDTF1Beaver, OK6.0100$250,000
April 1012:05 AM CDTF1Osborne, KS9.0100$150,000
April 1012:10 AM CDTF2Ford, KS17.3380$190,000
April 1012:17 AM CDTF2Wheeler, TX6.0200$150,000
April 1012:24 AM CDTF1Smith, KS4.0100$70,000
April 1012:25 AM CDTF1Osborne, KS2.075$50,000
April 1012:25 AM CDTF1Osborne, KS13.0200$160,000
April 1012:39 AM CDTF2Ford, KS10.0200$420,000
April 1012:46 AM CDTF1Wichita, TX4.5100$150,000
April 1012:48 AM CDTF1Ford, KS9.6150$170,000
April 1012:49 AM CDTF0Smith, KS3.550$10,000
April 1012:57 AM CDTF0Edwards, KS7.4100

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.