Tornadoes · United States · California · 2024

EF0 tornado, Kismet, California, March 1, 2024

This EF0 tornado ran 0.4 miles across Madera County on March 1, 2024, touching down at 3:50 PM PST and reaching 10 yards wide. It killed nobody, and did $50,000 of property damage.

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 mphthis tornado

    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. 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
EF0
Date
March 1, 2024
Touchdown
3:50 PM PST (23:50 UTC)
Lifted
3:55 PM PST (23:55 UTC)
On the ground
5 minutes
Path length
0.4 miles (0.7 km)
Path width
10 yards (9 m)
Deaths
0
Injuries
0
Property damage
$50,000
County
Madera County
Touchdown point
37.023, -120.059
Lift-off point
37.024, -120.052
Record number
2403011750-01

What the Weather Service recorded

A large cold upper trough dropped out of the Gulf of Alaska on February 29 and had deepened off the Pacific Northwest coast on March 1 spreading widespread precipitation as far south a central California. The trough then slowly moved east across the Pacific Northwest on March 2 and 3 before moving east of the region on March 4. This system brought moderate to heavy precipitation to the Sierra Nevada which picked up between 2 and 4 inches of liquid precipitation north of Kings Canyon and 1 to 2 inches further south. The precipitation fell as snow above 5000 feet for the duration of the event and produced 2 to 4 feet on new snowfall north of Kings Canyon and 1.5 to 3 feet of snow further south. This system also produced a half inch to an inch of rainfall in Merced County and a quarter to half inch across most of the remainder of the San Joaquin Valley. Most of the Kern County Mountains and Deserts picked up 1 to 2 tenths of an inch of rainfall. In addition to the precipitation, strong winds also accompanied this system and combined with the snow to produce near blizzard conditions over the Sierra Nevada north of Kings Canyon between the morning of March 1 and the morning of March 3. Scattered thunderstorms also broke out during the afternoons of March 1 and March 2 over parts of the San Joaquin Valley. While the thunderstorms were not heavy rain producers, several funnel clouds were observed and one cell produced a weak tornado in northeast Madera during the afternoon of March 1. In addition to the precipitation, several stations in the Kern County Mountains and Deserts measured wind gusts exceeding 45 mph between the evening of March 2 and the early morning of March 4.

A funnel cloud which had been previously reported by a trained spotter spawned a small tornado in northeast Madera which was on the ground for around 5 minutes and moved eastward around a half mile. The tornado damaged some portable classrooms at Berenda Elementary School in Madera.

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

The warnings

3 minutes of warning. NWS HNX issued a tornado warning for this county at 23:47 UTC, 3 minutes before the tornado touched down, in force until 00:15 UTC.

Issued (UTC)ExpiredProductOffice
23:47 UTC00:15 UTCTornado WarningHNX
00:09 UTC00:32 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 forecast that day

The Storm Prediction Center had this point in a General Thunderstorms Risk. The outlook in force was issued at 19:53 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.

Oakland, CA (KOAK), 12:00Z

11.8 hours before the tornado, 205 km from the path. March 1, 2024.

Skew-T log-pSkew-T log-p diagram, Oakland, CA at 12:00Z on 2024-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 5 joules per kilogram, CIN -1, lifted condensation level 494 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Oakland, CA at 12:00Z on 2024-03-01The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 35 square meters per square second, 0 to 6 km bulk shear 64 knots.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
5 J/kg
Mixed-layer CIN
-1 J/kg
Surface CAPE
12 J/kg
Mixed-layer LCL
494 m above ground
0-6 km bulk shear
64 kt
0-1 km bulk shear
15 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
246 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
6.1 K/km

Open this sounding in Storm Lab

Oakland, CA (KOAK), 00:00Z

0.2 hours after it, 205 km from the path. March 2, 2024.

Skew-T log-pSkew-T log-p diagram, Oakland, CA at 00:00Z on 2024-03-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 67 joules per kilogram, CIN 0, lifted condensation level 793 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Oakland, CA at 00:00Z on 2024-03-02The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 185 square meters per square second, 0 to 6 km bulk shear 76 knots.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
67 J/kg
Mixed-layer CIN
0 J/kg
Surface CAPE
142 J/kg
Mixed-layer LCL
793 m above ground
0-6 km bulk shear
76 kt
0-1 km bulk shear
19 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
273 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2
0-3 km lapse rate
7.1 K/km

Open this sounding in Storm Lab

The radar

The San Joaquin Valley radar (KHNX), 87 km away, was scanning. The volume nearest the touchdown began at 23:49 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
23:40 UTCTORNADO4 Nne MaderaMadera, CAKFSN showed footage of damage at Berenda Elementary School in Madera. Also received reports and photos via Facebook of damage, including a snapped tree trunk of at least several inches in diameter, as well as building da
23:45 UTCFUNNEL CLOUD8 N MaderaMadera, CASpotter report of a funnel cloud via social media.
23:45 UTCTORNADO8 N MaderaMadera, CAUpdates previous funnel cloud report from 8 N Madera. Spotter report of a funnel cloud via social media. Additional social media footage shows rotation in contact with the ground, making it a tornado.

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

This ground now

The live radar over the trackEvery 2024 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.