Tornadoes · United States · Kansas · 2015

EF3 tornado, Mt Hope to Burrton, Kansas, May 6, 2015

From Mt Hope to Burrton, this EF3 tornado ran 16.5 miles across Sedgwick and Harvey counties on May 6, 2015, touching down at 4:49 PM CDT and reaching 300 yards wide. It killed nobody and injured 1, and did $630,000 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 mph

    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 mphthis tornado

    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
EF3
Date
May 6, 2015
Touchdown
4:49 PM CDT (21:49 UTC)
Lifted
5:17 PM CDT (22:17 UTC)
On the ground
28 minutes
Path length
16.5 miles (26.5 km)
Path width
300 yards (274 m)
Deaths
0
Injuries
1
Property damage
$630,000
Counties
Sedgwick and Harvey counties
Touchdown point
37.840, -97.651
Lift-off point
38.075, -97.606
Record number
1505061549-01

The damage survey

3 damage points were recorded along this path by NWS ICT, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF2. The highest wind the damage implies is 120 mph.

  • minor damage to detached garage and carport. several tree branches strewn about
  • Significant damage to cedar trees. They were completely snapped at 15ft.

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

A modest dryline developed across South Central and Central Kansas during the afternoon hours of May 6th, 2015. Moderate instability and shear combined to produce supercell thunderstorms across South Central Kansas and Central Kansas. |The supercell thunderstorms produced some large hail, but also produced five tornadoes across the area. One of the tornadoes was rated an EF3, with another rated an EF2.

Tornado touched down in an open field and quickly grew in strength as it moved slightly east of north. The tornado damaged 3 center pivot irrigation systems and caused damage at a farmstead by demolishing a single car detached garage and ripped off a carport that was attached to a barn. As the tornado moved on to the north, it encountered another farmstead. One house was directly in the path of the tornado and was completely leveled with nothing left standing (DI2 DOD9). The home was built in the late 1800's and was not secured to the foundation. Another home just to the northwest of the main home sustained significant damage to the southeast corner by taking down two small sections of the home. Another barn on the property was a complete loss and the trees experienced significant limb loss and some debarkation. One minor injury was reported. The person affected refused treatment. The tornado was 125 yards wide. This tornado moved into Harvey County.

Impressive tornado continued to moved across open country. A small hog barn had the roof blown off and significant tree damage was noted along the path. The worst of which was to a fence row of cedar trees in which they were completely snapped and partially debarked for a width of approximately 150 yards (DI28 DOD5). the maximum width along the path was 300 yards.

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.

The county was under a tornado watch, issued at 18:41 UTC and running to 01:34 UTC.

Issued (UTC)ExpiredProductOffice
07:10 UTC12:42 UTCFlood WarningICT
18:41 UTC01:34 UTCTornado WatchICT
20:00 UTC03:00 UTCWind AdvisoryICT
21:45 UTC22:15 UTCSevere Thunderstorm WarningICT
21:50 UTC22:45 UTCSevere Thunderstorm WarningICT
21:52 UTC22:06 UTCTornado WarningICT
22:30 UTC22:52 UTCTornado WarningICT
01:34 UTC05:22 UTCTornado WatchICT

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 Enhanced Risk, with a 0.10 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 20:00 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.

Dodge City, (KDDC), 12:00Z

9.8 hours before the tornado, 201 km from the path. May 6, 2015.

Skew-T log-pSkew-T log-p diagram, Dodge City, at 12:00Z on 2015-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 16 joules per kilogram, CIN -155, lifted condensation level 821 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, Dodge City, at 12:00Z on 2015-05-06The 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 141 square meters per square second, 0 to 6 km bulk shear 26 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
16 J/kg
Mixed-layer CIN
-155 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
821 m above ground
0-6 km bulk shear
26 kt
0-1 km bulk shear
25 kt
0-1 km storm-relative helicity
141 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.0 K/km

Open this sounding in Storm Lab

Dodge City, (KDDC), 00:00Z

2.2 hours after it, 201 km from the path. May 7, 2015.

Skew-T log-pSkew-T log-p diagram, Dodge City, at 00:00Z on 2015-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 552 joules per kilogram, CIN -22, lifted condensation level 2154 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, Dodge City, at 00:00Z on 2015-05-07The 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 22 square meters per square second, 0 to 6 km bulk shear 19 knots.193958Sfc1 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
552 J/kg
Mixed-layer CIN
-22 J/kg
Surface CAPE
1759 J/kg
Mixed-layer LCL
2154 m above ground
0-6 km bulk shear
19 kt
0-1 km bulk shear
11 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
8.5 K/km

Open this sounding in Storm Lab

The surface observations

Hutchinson (HUT), 24 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
19:52 UTC7566160° 22 kt291006.8
20:22 UTC7866160° 25 kt341006.4
20:52 UTC7666150° 25 kt321005.8
21:47 UTC75.266.2150° 27 kt341004.7
22:02 UTC7666160° 25 kt351004.7
22:52 UTC7362150° 29 kt441005.4
22:59 UTC7262150° 25 kt361005.4
23:44 UTC7165150° 26 kt341004.7

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

The radar

The Wichita radar (KICT), 37 km away, was scanning. The volume nearest the touchdown began at 21:48 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
21:42 UTCHAIL 1Mount HopeSedgwick, KS
21:51 UTCTORNADOMount HopeSedgwick, KS
22:04 UTCTORNADO6 Se BurrtonHarvey, KSTORNADO OBSERVED BY STORM SPOTTER
22:04 UTCBLIZZARD6 Se BurrtonHarvey, KSTORNADO OBSERVED BY STORM SPOTTER
22:06 UTCTORNADO4 Ese BurrtonHarvey, KSHOG BARN DESTROYED AS WELL AS TREE DAMAGE AT SW 36TH AND WILLOW LAKE RD
22:21 UTCHAIL 1ViolaSedgwick, KS
22:38 UTCTORNADO6 N ViolaSedgwick, KSOBSERVED BRIEFLY CROSSING 71ST STREET SOUTH BETWEEN 247TH WEST AND 263RD WEST.

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

This ground now

The live radar over the trackEvery 2015 tornado in KansasEvery tornado in Kansas since 1950Warnings in force in Kansas nowThe forecast where you are

The other tornadoes of May 6, 2015

47 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 62:58 AM CDTEF0Creek, OK1.5100
May 62:24 PM CDTEF0Lincoln, KS10.7100$25,000
May 62:45 PM CDTEF0Caddo, OK2.050
May 62:53 PM CDTEF0Caddo, OK0.550
May 63:31 PM CDTEF0Jewell, KS1.025
May 63:55 PM CDTEF2Jewell, KS12.63501$1.5 million
May 64:18 PM CDTEF1Adams, NE3.9300$1.5 million
May 64:33 PM CDTEF3Grady, OK10.31,500
May 64:37 PM CDTEF0Major, OK0.120
May 64:38 PM CDTEF1Nuckolls, NE9.5200$250,000
May 64:48 PM CDTEF0Grady, OK to KS, NE0.350
May 64:48 PM CDTEF2Nuckolls, KS to NE20.1400$4.3 million
May 64:54 PM CDTEF1Jewell, KS4.3250$250,000
May 65:04 PM CDTEF1Jewell, KS3.160$5,000
May 65:08 PM CDTEF1Republic, KS2.175
May 65:10 PM CDTEF0Republic, KS3.150
May 65:15 PM CDTEF0Garfield, OK0.110
May 65:20 PM CDTEF2Republic, KS to NE36.2800$1.0 million
May 65:26 PM CDTEF0Thayer, NE1.8100$500,000
May 65:28 PM CDTEF0Thayer, NE1.030
May 65:33 PM CDTEF1McClain, OK1.0200
May 65:38 PM CDTEF0Sedgwick, KS0.350
May 65:45 PM CDTEF0Hall, NE0.025
May 65:46 PM CDTEF0Cleveland, OK0.525
May 65:53 PM CDTEF1Cleveland, OK3.31,000
May 66:33 PM CDTEF0Dewey, OK0.330
May 66:41 PM CDTEF0Caddo, OK3.5200
May 66:56 PM CDTEF0Grant, OK0.320
May 67:14 PM CDTEF3Republic, KS1.9100
May 67:28 PM CDTEF0Republic, KS0.050
May 67:35 PM CDTEF0Harper, KS0.350
May 67:38 PM CDTEF1Republic, KS2.475
May 67:49 PM CDTEF0Grady, OK0.540
May 68:11 PM CDTEF0Grady, OK3.5200
May 68:33 PM CDTEF0Cloud, KS0.375
May 68:38 PM CDTEF0Ottawa, KS0.050
May 68:41 PM CDTEF3Oklahoma, OK2.070012
May 68:49 PM CDTEF2Archer, TX12.0400
May 68:55 PM CDTEF0Ottawa, KS0.350
May 69:10 PM CDTEF0Washington, KS6.050
May 69:27 PM CDTEF0Cloud, KS8.875
May 69:37 PM CDTEF0Throckmorton, TX3.4440
May 69:56 PM CDTEF1Washington, KS4.075
May 610:00 PM CDTEF0Throckmorton, TX1.2100
May 610:36 PM CDTEF0Washington, KS0.375
May 610:49 PM CDTEF1Gage, NE7.7500
May 611:00 PM CDTEF0Throckmorton, TX0.050

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.