Tornadoes · United States · Kansas · 2019

EF0 tornado, Henson, Kansas, April 29, 2019

This EF0 tornado ran 2.1 miles across Miami County on April 29, 2019, touching down at 4:10 AM CDT and reaching 15 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
April 29, 2019
Touchdown
4:10 AM CDT (09:10 UTC)
Lifted
4:13 AM CDT (09:13 UTC)
On the ground
3 minutes
Path length
2.1 miles (3.3 km)
Path width
15 yards (14 m)
Deaths
0
Injuries
0
Property damage
$50,000
County
Miami County
Touchdown point
38.503, -94.826
Lift-off point
38.488, -94.793
Record number
1904290310-01

The damage survey

3 damage points were recorded along this path by NWS EAX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 85 mph.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

What the Weather Service recorded

An overnight thunderstorm complex caused a brief tornado that impacted a church in rural Miami County, just south of Paola, KS.

During an overnight complex of thunderstorms a QLCS tornado formed just south of Paola. The tornado impacted a church and did room damage. Several grave markers were also damaged in a nearby cemetery, and the flag pole in front of the church was bent completely over.

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)ExpiredProductOffice
08:51 UTC09:17 UTCSevere Thunderstorm WarningEAX
09:00 UTC09:21 UTCSevere Thunderstorm WarningEAX

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 Marginal Risk. The outlook in force was issued at 05:38 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.

Topeka, KS (KFOE), 00:00Z

9.2 hours before the tornado, 91 km from the path. April 29, 2019.

Skew-T log-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2019-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -81781, lifted condensation level 1217 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 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, Topeka, KS at 00:00Z on 2019-04-29The 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 538 square meters per square second, 0 to 6 km bulk shear 50 knots.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
-81781 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
1217 m above ground
0-6 km bulk shear
50 kt
0-1 km bulk shear
40 kt
0-1 km storm-relative helicity
538 m²/s²
0-3 km storm-relative helicity
653 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7
0-3 km lapse rate
2.4 K/km

Open this sounding in Storm Lab

Topeka, KS (KFOE), 12:00Z

2.8 hours after it, 91 km from the path. April 29, 2019.

Skew-T log-pSkew-T log-p diagram, Topeka, KS at 12:00Z on 2019-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -3544, lifted condensation level 568 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 km2 km3 km6 km9 km12 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, Topeka, KS at 12:00Z on 2019-04-29The 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 -55 square meters per square second, 0 to 6 km bulk shear 62 knots.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
-3544 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
568 m above ground
0-6 km bulk shear
62 kt
0-1 km bulk shear
13 kt
0-1 km storm-relative helicity
-55 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
3.0 K/km

Open this sounding in Storm Lab

The surface observations

Olathe (IXD), 38 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
07:10 UTC140° 13 kt181008.1
07:15 UTC140° 15 kt1008.1
07:20 UTC140° 14 kt1008.1
07:25 UTC150° 15 kt1008.1
07:26 UTC6453150° 14 kt1008.1
07:30 UTC150° 15 kt1008.5-RA
07:35 UTC150° 14 kt201008.1-RA
07:40 UTC140° 14 kt1008.1-RA
07:45 UTC140° 11 kt1008.1-RA
07:50 UTC140° 11 kt1007.8RA
07:53 UTC6155140° 8 kt1007.8-TSRA
07:55 UTC130° 8 kt1007.8-RA
08:00 UTC140° 9 kt1007.8-RA
08:05 UTC130° 8 kt1007.8-RA
08:10 UTC130° 7 kt1007.8-RA
08:11 UTC6155130° 7 kt1007.8VCTS -RA
08:15 UTC140° 7 kt1008.1-RA
08:20 UTC130° 5 kt1007.8-RA
08:25 UTC130° 7 kt1007.8-RA
08:28 UTC6056130° 8 kt1008.1TSRA BR
08:30 UTC130° 7 kt1008.1RA BR
08:35 UTC140° 5 kt1008.5+RA BR
08:36 UTC6056140° 7 kt1008.5+TSRA BR
08:40 UTC10° 5 kt1008.5+RA BR
08:43 UTC5956 1008.1+TSRA BR
08:45 UTC360° 5 kt1008.1+RA BR
08:48 UTC5957.2 3 kt1008.1+TSRA BR
08:50 UTC90° 4 kt1008.1+RA BR
08:53 UTC5857 3 kt1008.5+TSRA BR
08:55 UTC 1008.5+RA BR
08:59 UTC5857 1008.5VCTS +RA BR
09:00 UTC340° 5 kt1008.8+RA BR
09:05 UTC10° 4 kt1009.5+RA BR
09:10 UTC5957 1009.5+TSRA BR
09:15 UTC170° 9 kt1008.5+RA FG
09:20 UTC5958190° 8 kt211008.1+TSRA BR
09:25 UTC5957170° 9 kt211007.8+TSRA BR
09:29 UTC5957150° 6 kt1007.8VCTS -RA BR
09:30 UTC150° 5 kt1007.8-RA BR
09:35 UTC140° 4 kt1007.8RA BR
09:40 UTC160° 2 kt1008.1-RA
09:45 UTC5957170° 3 kt1008.1-TSRA
09:50 UTC0° 0 kt1008.5-RA BR
09:53 UTC59570° 0 kt1008.1-TSRA BR
09:55 UTC70° 4 kt1007.5-RA BR
10:00 UTC595790° 6 kt1006.8-RA
10:05 UTC90° 8 kt1005.8-RA
10:10 UTC120° 10 kt1005.1-RA
10:15 UTC130° 13 kt1004.4-RA
10:20 UTC130° 8 kt1005.8-RA
10:25 UTC170° 10 kt1006.1
10:26 UTC5956180° 9 kt1006.1VCTS
10:30 UTC160° 9 kt1006.1
10:35 UTC160° 8 kt1006.1
10:40 UTC180° 8 kt1006.8
10:41 UTC5856190° 9 kt1007.1
10:45 UTC200° 10 kt1007.5
10:50 UTC230° 11 kt1008.5
10:53 UTC5855250° 10 kt1009.1
10:55 UTC270° 10 kt1009.1
11:00 UTC270° 11 kt1010.2
11:05 UTC270° 11 kt1010.5

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

The radar

The Pleasant Hill radar (KEAX), 59 km away, was scanning. The volume nearest the touchdown began at 09:09 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
08:45 UTCTSTM WND GST 581 E GarnettAnderson, KS
08:46 UTCTSTM WND DMG1 Ssw GarnettAnderson, KSLARGE TREE BLOCKING 59 HIGHWAY.
08:54 UTCTSTM WND DMG1 Ne GreeleyAnderson, KS*** 1 INJ *** SEMI-TRAILER BLOWN OFF HIGHWAY 169 WITH DRIVER INJURED. TIME ESTIMATED FROM RADAR.
09:11 UTCTSTM WND DMG5 Wnw New LancasterMiami, KSROOF AND WALL DAMAGE TO A CHURCH AND DAMAGE TO TOMBSTONES IN CEMETERY. PART OF ROOF WAS LIFTED AND REMOVED FROM THE BUILDING.
09:11 UTCTORNADO5 Wnw New LancasterMiami, KSCORRECTS PREVIOUS TORNADO REPORT FROM 5 WNW NEW LANCASTER. ROOF AND WALL DAMAGE TO A CHURCH AND DAMAGE TO TOMBSTONES IN CEMETERY. PART OF ROOF WAS LIFTED AND REMOVED FROM THE BUILDING. PATH LENGTH WAS 2 MILES WITH A WIDT
12:00 UTCHEAVY RAIN 1.695 Nne PomonaFranklin, KSCOCORAHS STATION KS-FR-20 POMONA 4.6 NNE.

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

This ground now

The live radar over the trackEvery 2019 tornado in KansasEvery tornado in Kansas since 1950Warnings in force in Kansas 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.