Tornadoes · United States · California · 1997

F0 tornado, Mc Farland, California, March 22, 1997

This F0 tornado ran 0.2 miles across Kern County on March 22, 1997, touching down at 4:37 PM PST 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.

  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
March 22, 1997
Touchdown
4:37 PM PST (00:37 UTC)
Path length
0.2 miles (0.3 km)
Path width
10 yards (9 m)
Deaths
0
Injuries
0
County
Kern County
Touchdown point
35.670, -119.420
Lift-off point
35.670, -119.400
Record number
106

What the Weather Service recorded

Doppler Radar strongly supported meso/tornadic activity west of McFarland and a subsequent report of a tornado was made through the California Highway Patrol Office. However, no damage could be verified in this very rural area of the county.

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

The warnings

28 minutes of warning. NWS HNX issued a tornado warning for this county at 00:09 UTC, 28 minutes before the tornado touched down, in force until 00:45 UTC.

Issued (UTC)ExpiredProductOffice
00:04 UTC01:00 UTCSevere Thunderstorm WarningHNX
00:09 UTC00:45 UTCTornado WarningHNX

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 surface observations

Bakersfield/Meadows (BFL), 42 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
22:56 UTC8249300° 12 kt1011.9
23:56 UTC8053350° 6 kt1011.2
00:56 UTC6953290° 17 kt251011.9HZ
01:04 UTC66.255.4290° 19 kt241011.9-RA
01:43 UTC62.655.4310° 18 kt1012.9+RA
01:56 UTC6456320° 9 kt1013.2-RA

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

The radar

The San Joaquin Valley radar (KHNX), 74 km away, was scanning. The volume nearest the touchdown began at 00:36 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 1997 tornado in CaliforniaEvery tornado in California since 1950Warnings in force in California nowThe forecast where you are

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.