Tornadoes · United States · Kansas · 2016

EF0 tornado, Matfield Green, Kansas, July 7, 2016

This EF0 tornado ran 0.1 miles across Chase County on July 7, 2016, touching down at 8:53 PM CDT and reaching 50 yards wide. It killed nobody.

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
July 7, 2016
Touchdown
8:53 PM CDT (01:53 UTC)
Lifted
8:54 PM CDT (01:54 UTC)
On the ground
1 minutes
Path length
0.1 miles (0.2 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
County
Chase County
Touchdown point
38.110, -96.370
Lift-off point
38.110, -96.368
Record number
1607071953-01

The damage survey

13 damage points were recorded along this path by NWS ICT, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF3. The highest wind the damage implies is 165 mph.

  • All walls collapsed and house destroyed. Construction did not have walls anchored by bolts, only nails.

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 lone supercell thunderstorm developed over southeastern Chase county on the evening of July 7th, 2016. The supercell rapidly became tornadic, initially producing a brief tornado touchdown (EF0) in southeast Chase County. The supercell continued to move to the southeast, producing 2 different tornado damage paths across Greenwood county. The first Greenwood county tornado was an EF3, which is only the 5th such strong tornado to occur in Kansas during the month of July since 1950. The second Greenwood county tornado, moved northwest to southeast, through the town of Eureka, producing EF2 damage. The supercell produced another brief touchdown (EF0) in open country in Wilson county.

A very brief touchdown of 15 seconds was reported over open country.

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

The warnings

13 minutes of warning. NWS ICT issued a tornado warning for this county at 01:40 UTC, 13 minutes before the tornado touched down, in force until 02:30 UTC.

The county was under a severe thunderstorm watch, issued at 01:24 UTC and running to 04:04 UTC.

Issued (UTC)ExpiredProductOffice
17:00 UTC02:01 UTCHeat AdvisoryICT
01:24 UTC04:04 UTCSevere Thunderstorm WatchICT
01:40 UTC02:30 UTCTornado WarningICT
02:34 UTC03:30 UTCSevere Thunderstorm 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 Marginal Risk. The outlook in force was issued at 01:00 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.

Topeka, KS (KFOE), 00:00Z

1.9 hours before the tornado, 118 km from the path. July 8, 2016.

Skew-T log-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2016-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 3276 joules per kilogram, CIN -14, lifted condensation level 1220 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, Topeka, KS at 00:00Z on 2016-07-08The 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 14 square meters per square second, 0 to 6 km bulk shear 41 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
3276 J/kg
Mixed-layer CIN
-14 J/kg
Surface CAPE
6372 J/kg
Mixed-layer LCL
1220 m above ground
0-6 km bulk shear
41 kt
0-1 km bulk shear
11 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2
0-3 km lapse rate
6.5 K/km

Open this sounding in Storm Lab

Topeka, KS (KFOE), 12:00Z

10.1 hours after it, 118 km from the path. July 8, 2016.

Skew-T log-pSkew-T log-p diagram, Topeka, KS at 12:00Z on 2016-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1517 joules per kilogram, CIN -163, lifted condensation level 1114 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, Topeka, KS at 12:00Z on 2016-07-08The 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 2 square meters per square second, 0 to 6 km bulk shear 35 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
1517 J/kg
Mixed-layer CIN
-163 J/kg
Surface CAPE
1351 J/kg
Mixed-layer LCL
1114 m above ground
0-6 km bulk shear
35 kt
0-1 km bulk shear
1 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.6
0-3 km lapse rate
4.0 K/km

Open this sounding in Storm Lab

The radar

The Topeka radar (KTWX), 99 km away, was scanning. The volume nearest the touchdown began at 01:51 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
01:53 UTCTORNADO7 Nnw ThrallChase, KSBRIEF TOUCHDOWN OF 15 SECONDS WAS REPORTED.
02:15 UTCTORNADO13 Nw EurekaGreenwood, KSDELAYED REPORT FROM A TRAINED SPOTTER OF A BRIEF TOUCHDOWN. LOCATION IS BASED ON RADAR ROTATION.
02:28 UTCHAIL 13 Nne CassodayButler, KSEMERGENCY MANAGER REPORTS DIME TO QUARTER SIZED HAIL ON KANSAS TURNPIKE MILE MARKER 95.
02:48 UTCTORNADO1 N EurekaGreenwood, KSTRANSFORMERS ARCHING AND POWER FLASHES ON THE NORTH SIDE OF TOWN.
02:48 UTCTORNADOEurekaGreenwood, KSLAW ENFORCEMENT REPROTS HEAVY TREE DAMAGE AND OTHER REPORTS OF DAMAGE AT 13TH AND MAIN AS WELL AS STATE AND 7TH IN NORTHERN EUREKA.
02:48 UTCTORNADOEurekaGreenwood, KSREPORT OF DAMAGE IN NORTHERN EUREKA OF ROOFS OFF OF HOMES AND OTHER DEBRIS. TIME IS BASED ON OTHER REPORTS.
02:49 UTCTORNADOEurekaGreenwood, KSDAMAGE TO HOUSES ON THE NORTH SIDE OF TOWN, INCLUDING A MOBILE HOME FLIPPED AND DESTROYED. A LARGE BARN HAS BEEN PUSHED ON ITS SIDE. A LEAST ONE HOME HAD ITS ROOF REMOVED. A NURSING HOME WAS DAMAGED. NO INJURIES OR FATAL

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

This ground now

The live radar over the trackEvery 2016 tornado in KansasEvery tornado in Kansas since 1950Warnings in force in Kansas nowThe forecast where you are

The other tornadoes of July 7, 2016

9 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
July 76:45 AM CDTEF0Boone, MO0.350
July 72:05 PM CDTEF0Nelson, ND9.0100
July 72:30 PM CDTEF0Renville, ND0.320
July 73:38 PM CDTEF0Bottineau, ND0.320
July 75:06 PM CDTEF0Grand Forks, ND0.320
July 75:15 PM CDTEF0Grand Forks, ND0.540
July 79:10 PM CDTEF3Greenwood, KS4.21,144$100,000
July 79:41 PM CDTEF2Greenwood, KS3.6150$3.8 million
July 710:41 PM CDTEF0Wilson, KS0.150

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.