Tornadoes · United States · Arkansas · 2019

EF0 tornado, Subiaco, Arkansas, June 23, 2019

This EF0 tornado ran 0.1 miles across Logan County on June 23, 2019, touching down at 2:36 AM CDT and reaching 25 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
June 23, 2019
Touchdown
2:36 AM CDT (07:36 UTC)
Lifted
2:37 AM CDT (07:37 UTC)
On the ground
1 minutes
Path length
0.1 miles (0.1 km)
Path width
25 yards (23 m)
Deaths
0
Injuries
0
Crop damage
$55,000
County
Logan County
Touchdown point
35.262, -93.683
Lift-off point
35.263, -93.683
Record number
1906230136-01

What the Weather Service recorded

Severe thunderstorms and flash flooding occurred during the morning hours of the 23rd across western and northwest portions of the state. These storms then moved southeast throughout the day, with additional severe weather seen.

Trees were uprooted along this short path. A tree fell onto a house and effectively split the house into two. There were no injuries, but the house was a total loss.

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
14:07 UTC01:28 UTCFlood AdvisoryTSA
06:06 UTC13:00 UTCFlash Flood WarningLZK
07:05 UTC08:33 UTCFlash Flood WatchLZK
07:31 UTC13:30 UTCFlash Flood WarningLZK
08:52 UTC12:45 UTCFlash Flood WarningLZK
10:32 UTC11:00 UTCSevere Thunderstorm WarningLZK
10:36 UTC11:00 UTCTornado WarningLZK
10:45 UTC11:15 UTCTornado WarningLZK
10:55 UTC11:30 UTCSevere Thunderstorm WarningLZK
11:20 UTC11:29 UTCTornado WarningLZK
14:46 UTC20:23 UTCFlood WarningTSA
18:02 UTC00:06 UTCSevere Thunderstorm WatchLZK
19:39 UTC23:45 UTCFlash Flood WarningLZK
20:32 UTC01:00 UTCFlash Flood WarningLZK
23:40 UTC02:30 UTCFlash Flood WarningLZK

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 06:00 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.

Springfield, MO (KSGF), 00:00Z

7.6 hours before the tornado, 182 km from the path. June 23, 2019.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2019-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 3307 joules per kilogram, CIN -1, lifted condensation level 1128 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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, Springfield, MO at 00:00Z on 2019-06-23The 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 6 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
3307 J/kg
Mixed-layer CIN
-1 J/kg
Surface CAPE
4229 J/kg
Mixed-layer LCL
1128 m above ground
0-6 km bulk shear
19 kt
0-1 km bulk shear
8 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.5
0-3 km lapse rate
6.7 K/km

Open this sounding in Storm Lab

Springfield, MO (KSGF), 12:00Z

4.4 hours after it, 182 km from the path. June 23, 2019.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2019-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 2 joules per kilogram, CIN -210, lifted condensation level 612 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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, Springfield, MO at 12:00Z on 2019-06-23The 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 188 square meters per square second, 0 to 6 km bulk shear 25 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
2 J/kg
Mixed-layer CIN
-210 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
612 m above ground
0-6 km bulk shear
25 kt
0-1 km bulk shear
26 kt
0-1 km storm-relative helicity
188 m²/s²
0-3 km storm-relative helicity
280 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.1 K/km

Open this sounding in Storm Lab

The radar

The Western Arkansas radar (KSRX), 62 km away, was scanning. The volume nearest the touchdown began at 07:35 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
08:27 UTCTSTM WND DMGRussellvillePope, ARDAMAGE WAS ON THE CAMPUS OF ARKANSAS TECH UNIVERSITY. TREES WERE SNAPPED OR UPROOTED. LARGE LIMBS WERE BLOWN DOWN. ON THE BASEBALL FIELD, THE ROOF WAS BLOWN OFF OF THE DUGOUT, AND ITS CONTENTS WERE BLOWN DOWNWIND. ALSO,
08:40 UTCFLASH FLOODParksScott, ARNUMEROUS COUNTY ROADS ARE FLOODED AND IMPASSABLE WITH PORTIONS OF HIGHWAY 28 CLOSED AS WELL.
08:40 UTCFLASH FLOODWaldronScott, ARNUMEROUS ROADWAYS FLOODED WITH STATE HIGHWAYS 71 AND 28 CLOSED IN SOME AREAS.
09:08 UTCFLASH FLOODIoneLogan, ARWATER OVER SEVERAL ROADS NEAR THE TOWN OF IONE.

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 ArkansasEvery tornado in Arkansas since 1950Warnings in force in Arkansas nowThe forecast where you are

The other tornadoes of June 23, 2019

12 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
June 233:20 AM CDTUnratedHarper, KS0.850
June 233:37 AM CDTUnratedHarper, KS0.650
June 235:49 AM CDTEF0Logan, AR0.125$15,000
June 234:20 PM CDTEF1Carlisle, KY0.9100$20,000
June 234:27 PM CDTEF1Carlisle, KY0.1150$5,000
June 234:33 PM CDTEF1McCracken, KY17.3150$505,000
June 235:02 PM CDTEF1Livingston, KY0.5140$100,000
June 235:07 PM CDTEF1Livingston, KY0.8125$20,000
June 235:10 PM CDTEF1Pope, IL2.8120$40,000
June 235:13 PM CDTEF1Marshall, KY0.250$1.0 million
June 238:32 PM EDTEF0Saint Joseph, IN0.510
June 238:38 PM EDTEF0Saint Joseph, IN2.0250

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.