Tornadoes · United States · Kansas · 2002

F0 tornado, Anthony, Kansas, May 8, 2002

This F0 tornado ran 2.0 miles across Harper County on May 8, 2002, touching down at 4:09 PM CDT and reaching 220 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.

  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
May 8, 2002
Touchdown
4:09 PM CDT (21:09 UTC)
Path length
2.0 miles (3.2 km)
Path width
220 yards (201 m)
Deaths
0
Injuries
0
County
Harper County
Touchdown point
37.080, -98.120
Lift-off point
37.080, -98.120
Record number
557

What the Weather Service recorded

Occurred in open country.

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

The warnings

8 minutes of warning. NWS ICT issued a tornado warning for this county at 21:01 UTC, 8 minutes before the tornado touched down, in force until 22:00 UTC.

Issued (UTC)ExpiredProductOffice
20:32 UTC21:30 UTCSevere Thunderstorm WarningICT
21:01 UTC22:00 UTCTornado WarningICT
21:54 UTC23:00 UTCSevere Thunderstorm WarningICT
22:31 UTC04:30 UTCFlash Flood WarningICT

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, with a 0.15 chance of a tornado within 25 miles. The outlook in force was issued at 19:55 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 Vance AFB radar (KVNX), 38 km away, was scanning. The volume nearest the touchdown began at 21:06 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 2002 tornado in KansasEvery tornado in Kansas since 1950Warnings in force in Kansas nowThe forecast where you are

The other tornadoes of May 8, 2002

20 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 83:07 PM CDTF0McPherson, KS2.0110
May 83:41 PM CDTF0Marion, KS1.0220
May 83:55 PM CDTF0Marion, KS1.0220
May 85:00 PM CDTF0Sumner, KS1.0110
May 86:07 PM EDTF2Gallia, OH3.0803$3.5 million
May 85:10 PM CDTF0Chase, KS2.0220
May 86:26 PM CDTF1Jefferson, KS0.2100$10,000
May 86:30 PM CDTF1Jefferson, KS0.2100$50,000
May 86:34 PM CDTF0Jefferson, KS0.150$10,000
May 86:36 PM CDTF1Jefferson, KS0.2100$30,000
May 86:43 PM CDTF0Leavenworth, KS0.140$1,000
May 86:48 PM CDTF0Cowley, KS5.0220
May 86:48 PM CDTF1Leavenworth, KS0.540$10,000
May 86:58 PM CDTF0Chickasaw, IA0.225
May 87:20 PM CDTF0Clinton, MO0.125
May 88:10 PM CDTF0Allamakee, IA0.120$10,000
May 88:15 PM CDTF0Marion, IA0.230
May 88:49 PM CDTF0Grant, OK6.075
May 89:45 PM CDTF0Keokuk, IA0.110$30,000
May 812:32 AM CDTF0Woodford, IL5.550

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.