Tornadoes · United States · Kansas · 2023

EF0 tornado, Sharon Spgs to Sunland, Kansas, May 11, 2023

From Sharon Spgs to Sunland, this EF0 tornado ran 6.6 miles across Wallace County on May 11, 2023, touching down at 5:09 PM MDT and reaching 100 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
May 11, 2023
Touchdown
5:09 PM MDT (23:09 UTC)
Lifted
5:29 PM MDT (23:29 UTC)
On the ground
20 minutes
Path length
6.6 miles (10.7 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
0
County
Wallace County
Touchdown point
39.020, -101.740
Lift-off point
39.110, -101.790
Record number
2305111709-01

The damage survey

5 damage points were recorded along this path by NWS GLD, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF0. The highest wind the damage implies is 80 mph.

  • Report of a weak, rain-wrapped tornado crossing US-40.
  • End point for the tornado.
  • Damage to a shed, as well as to fences and hay bales thrown around.

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 high impact storm system moved across Northwest Kansas. The storm system produced an environment that was favorable for any of the developing thunderstorms to produce a tornado, which led to multiple tornadoes occurring on this day. The strongest tornado was rated an EF-1 which caused damage to the high school in Weskan. ||Otherwise thunderstorms produced hail up to half dollar in size near Wallace, and wind gusts estimated up to 65 MPH near Campus. The thunderstorms on this day were heavy rain producers, with rainfall amounts ranging from two to four inches. This led to some towns having street flooding as the storms moved through. One location near Weskan had flood damage a barn.||The repeated rounds of heavy rainfall over the Ludell area, combined with runoff being funneled into Beaver Creek from the area, caused flooding to occur at Ludell. The flood waters also flooded the county road going east from Ludell that followed Beaver Creek to Herndon.

Tornado moved over mostly open fields in northern Wallace County. However, one farmstead was hit, resulting in damage to a shed as well as to fences. Hay bales were thrown around too.

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

The warnings

18 minutes of warning. NWS GLD issued a tornado warning for this county at 22:51 UTC, 18 minutes before the tornado touched down, in force until 23:19 UTC.

The county was under a tornado watch, issued at 17:24 UTC and running to 01:00 UTC.

Issued (UTC)ExpiredProductOffice
12:00 UTC08:43 UTCFlood WatchGLD
17:24 UTC01:00 UTCTornado WatchGLD
19:58 UTC02:00 UTCFlash Flood WarningGLD
22:41 UTC23:00 UTCTornado WarningGLD
22:51 UTC23:19 UTCTornado WarningGLD
22:57 UTC23:18 UTCTornado WarningGLD
23:04 UTC23:30 UTCTornado WarningGLD
23:20 UTC23:44 UTCTornado WarningGLD
23:28 UTC00:02 UTCTornado WarningGLD

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. 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.

Dodge City, (KDDC), 12:00Z

11.2 hours before the tornado, 217 km from the path. May 11, 2023.

Skew-T log-pSkew-T log-p diagram, Dodge City, at 12:00Z on 2023-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 520 joules per kilogram, CIN -87, lifted condensation level 736 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 2023-05-11The 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 36 square meters per square second, 0 to 6 km bulk shear 17 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
520 J/kg
Mixed-layer CIN
-87 J/kg
Surface CAPE
752 J/kg
Mixed-layer LCL
736 m above ground
0-6 km bulk shear
17 kt
0-1 km bulk shear
13 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

Dodge City, (KDDC), 00:00Z

0.8 hours after it, 217 km from the path. May 12, 2023.

Skew-T log-pSkew-T log-p diagram, Dodge City, at 00:00Z on 2023-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 409 joules per kilogram, CIN -13, lifted condensation level 2172 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, Dodge City, at 00:00Z on 2023-05-12The 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 124 square meters per square second, 0 to 6 km bulk shear 36 knots.1939587897Sfc1 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
409 J/kg
Mixed-layer CIN
-13 J/kg
Surface CAPE
550 J/kg
Mixed-layer LCL
2172 m above ground
0-6 km bulk shear
36 kt
0-1 km bulk shear
19 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8
0-3 km lapse rate
9.5 K/km

Open this sounding in Storm Lab

The radar

The Goodland radar (KGLD), 34 km away, was scanning. The volume nearest the touchdown began at 23:07 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
21:02 UTCHEAVY RAIN 4.251 Ne CarusoSherman, KSSOCIAL MEDIA REPORT OF RAINFALL ACROSS FOR TODAY AND YESTERDAY (36HR TOTAL).
22:41 UTCTORNADO3 Sw WeskanWallace, KSSPOTTER REPORTED A MULTI-VORTEX TORNADO JUST SOUTHWEST OF WESKAN.
22:51 UTCTORNADO5 Ene WeskanWallace, KSREPORT OF A RAIN-WRAPPED, WEAK TORNADO THAT CROSSED HIGHWAY 40.
23:07 UTCHAIL 1.255 Ssw WallaceWallace, KSSOCIAL MEDIA REPORT WITH VIDEO.
23:15 UTCTORNADO12 N Sharon SpringsWallace, KSDELAYED REPORT ON SOCIAL MEDIA OF A BRIEF TORNADO THAT CAUSED DAMAGE TO AN OLD SHED, FENCES AND TOSSED A FEW ROUNDED HAY BALES.
23:16 UTCFUNNEL CLOUD13 N Sharon SpringsWallace, KSSPOTTER REPORTED FUNNEL CLOUD.
23:35 UTCTORNADO14 Nne WallaceWallace, KSSPOTTER REPORTED TORNADO 15 MILES SOUTH OF EDSON.
23:41 UTCTORNADO9 W WinonaLogan, KSMULTIPLE REPORTS OF A TORNADO ONGOING AT 170 AND APACHE ACRES.
23:47 UTCTORNADO9 S EdsonSherman, KSPHOTO OF TORNADO 15 MILES SOUTHEAST OF GOODLAND, KS.
00:04 UTCHAIL 12 Wsw Page CityLogan, KSSPOTTER REPORTED ONE INCH HAIL.
00:05 UTCHAIL 0.5WinonaLogan, KSSPOTTER REPORTS 0.25-0.5 INCH HAIL, NOT A LOT BUT SOME.
00:27 UTCFUNNEL CLOUD10 N WinonaThomas, KSSPOTTER LOCATED IN BREWSTER OBSERVED FUNNEL CLOUD.

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

This ground now

The live radar over the trackEvery 2023 tornado in KansasEvery tornado in Kansas since 1950Warnings in force in Kansas nowThe forecast where you are

The other tornadoes of May 11, 2023

32 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 116:06 AM CDTEF1Caddo Parish, LA2.6130$10,000
May 117:55 AM CDTEF1De Soto Parish, LA0.2130$50,000
May 118:03 AM CDTEF1Grant Parish, LA0.580
May 118:21 AM CDTEF1Webster Parish, LA0.160$20,000
May 1110:59 AM CDTEF1Union Parish, LA0.680
May 1112:41 PM CDTEF1Ashley, AR0.5140$40,000
May 1112:57 PM CDTEF1Cheyenne, KS to CO5.2100
May 111:35 PM CDTUnratedRawlins, KS1.2100
May 111:39 PM CDTUnratedRawlins, KS1.875
May 112:01 PM MDTUnratedDundy, NE3.075
May 114:33 PM MDTEF0Wallace, KS8.5100
May 114:41 PM MDTEF0Wallace, KS3.2100
May 114:45 PM MDTEF1Wallace, KS1.3175
May 114:45 PM MDTUnratedCheyenne, CO1.1150
May 114:46 PM MDTUnratedCheyenne, CO0.775
May 116:25 PM CDTEF0Grady, OK1.020
May 116:25 PM CDTUnratedLogan, KS5.8100
May 115:47 PM MDTUnratedSherman, KS0.875
May 116:57 PM CDTUnratedGrady, OK2.950
May 117:29 PM CDTUnratedThomas, KS1.575
May 117:36 PM CDTEF0Grady, OK0.430$4,000
May 117:42 PM CDTEF0McClain, OK2.130$5,000
May 117:45 PM CDTUnratedGrady, OK0.220
May 117:51 PM CDTEF0Grant, KS0.01
May 118:04 PM CDTEF0Grady, OK1.575
May 118:12 PM CDTEF0McClain, OK0.430
May 118:29 PM CDTEF1McClain, OK9.4250$100,000
May 119:03 PM CDTEF1Cleveland, OK2.3300$200,000
May 119:20 PM CDTEF1Palo Pinto, TX1.375
May 119:33 PM CDTEF0Cleveland, OK0.225$10,000
May 119:47 PM CDTUnratedPottawatomie, OK0.250
May 1110:16 PM CDTEF0Pottawatomie, OK1.7300

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.