Tornadoes · United States · Kansas · 2013

EF0 tornado, Edson to Goodland Arpt, Kansas, August 5, 2013

From Edson to Goodland Arpt, this EF0 tornado ran 0.1 miles across Sherman County on August 5, 2013, touching down at 12:28 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
August 5, 2013
Touchdown
12:28 PM MDT (18:28 UTC)
Lifted
12:30 PM MDT (18:30 UTC)
On the ground
2 minutes
Path length
0.1 miles (0.2 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
0
County
Sherman County
Touchdown point
39.450, -101.615
Lift-off point
39.450, -101.615
Record number
1308051228-01

What the Weather Service recorded

During the late morning an outflow boundary from overnight storms in central Nebraska moved south into Northwest Kansas. By early afternoon thunderstorms had begun to develop along the boundary, following it southward. As the afternoon progressed storm coverage increased. A few of the thunderstorms were strong enough to produce quarter size hail in Sherman, Logan, and Wallace counties. One storm near I-70 blew a loaded semi off the road west of Goodland. Due to the slow storm movement flash flooding also occurred west of Russell Springs on Highway 25.

A landspout tornado was seen from the weather office looking northeast. It dissipated after about two minutes while remaining over open country.

A second weak landspout tornado was observed northeast of the office. It also remained over open fields before dissipating.

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.

Issued (UTC)ExpiredProductOffice
18:34 UTC19:15 UTCTornado WarningGLD
19:10 UTC23:37 UTCSevere Thunderstorm WatchGLD
19:13 UTC20:15 UTCSevere Thunderstorm WarningGLD
19:16 UTC20:00 UTCSevere Thunderstorm WarningGLD
19:19 UTC20:00 UTCSevere Thunderstorm WarningGLD
19:59 UTC20:35 UTCSevere Thunderstorm WarningGLD
20:18 UTC23:30 UTCFlash Flood 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 Slight Risk, with a 0.02 chance of a tornado within 25 miles. The outlook in force was issued at 16:29 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.

Denver, CO (KDEN), 00:00Z

5.5 hours after it, 146 km from the path. August 6, 2013.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2013-08-06Temperature 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 -69775, lifted condensation level 3053 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, Denver, CO at 00:00Z on 2013-08-06The 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 -19 square meters per square second, 0 to 6 km bulk shear 23 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
0 J/kg
Mixed-layer CIN
-69775 J/kg
Surface CAPE
346 J/kg
Mixed-layer LCL
3053 m above ground
0-6 km bulk shear
23 kt
0-1 km bulk shear
8 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1
0-3 km lapse rate
9.3 K/km

Open this sounding in Storm Lab

The surface observations

Goodland (GLD), 11 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
16:53 UTC8963200° 4 kt1016.3
17:53 UTC9059 5 kt1016.3
18:36 UTC93.255.4 4 kt1015.6VCTS
18:46 UTC91.455.4340° 4 kt1015.2VCTS
18:53 UTC9157350° 12 kt231014.9VCTS
19:53 UTC6964160° 25 kt321016.9-TSRA
20:00 UTC69.864.4150° 20 kt321016.3-TSRA

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

The radar

The Goodland radar (KGLD), 12 km away, was scanning. The volume nearest the touchdown began at 18:28 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
18:28 UTCTORNADO12 Ne GoodlandSherman, KSLANDSPOUT SEEN FROM WEATHER OFFICE TO THE NORTHEAST. DISSIPATED AFTER ABOUT 2 MINUTES.
18:35 UTCTORNADO9 Ne GoodlandSherman, KSLANDSPOUT SEEN FROM WEATHER OFFICE TO THE NORTHEAST. DISSIPATED THEN ONE MORE FORMED A FEW MINUTES LATER.
18:40 UTCTORNADO9 Ne GoodlandSherman, KSWEAK LANDSPOUT TORNADO NE OF THE OFFICE.
20:07 UTCHAIL 0.7515 Sw EdsonSherman, KS
20:11 UTCHAIL 115 Sw EdsonSherman, KS
20:15 UTCHEAVY RAIN 1.510 S RuletonSherman, KSPEA SIZED HAIL ALSO OBSERVED.
20:20 UTCHAIL 113 Nne WallaceWallace, KSHEAVY RAINFALL OBSERVED.

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

This ground now

The live radar over the trackEvery 2013 tornado in KansasEvery tornado in Kansas since 1950Warnings in force in Kansas nowThe forecast where you are

The other tornadoes of August 5, 2013

1 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
August 512:40 PM MDTEF0Sherman, KS0.1100

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.