Tornadoes · United States · Missouri · 2019

EF1 tornado, Abo to Hanna, Missouri, May 23, 2019

From Abo to Hanna, this EF1 tornado ran 11.1 miles across Laclede and Pulaski counties on May 23, 2019, touching down at 1:49 AM CDT and reaching 440 yards wide. It killed nobody, and did $155,000 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 mphthis tornado

    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
EF1
Date
May 23, 2019
Touchdown
1:49 AM CDT (06:49 UTC)
Lifted
2:10 AM CDT (07:10 UTC)
On the ground
21 minutes
Path length
11.1 miles (17.8 km)
Path width
440 yards (402 m)
Deaths
0
Injuries
0
Property damage
$155,000
Counties
Laclede and Pulaski counties
Touchdown point
37.713, -92.435
Lift-off point
37.728, -92.234
Record number
1905230049-01

The damage survey

10 damage points were recorded along this path by NWS SGF, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 93 mph.

  • Uprooted and snapped trees.
  • Uprooted, snapped, and multiple directions
  • Starting Point. Tree limb damage observed

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

Multiple rounds of storms producing heavy rainfall, severe winds, hail and tornadoes moved across the Missouri Ozarks from May 20th and into the early morning hours of May 24th as upper level disturbances interacted with a slow moving but powerful storm system over the central Plains. Tornadoes occurred with each round, with the strongest and most numerous tornadoes occurring during the late afternoon and evening of the 22nd. On the anniversary of the Joplin Tornado off 2011, another tornado, rated EF-3 struck the north side of Joplin. This storm system eventually produced subsequent tornadoes in Golden City, Eldon and Jefferson City. Unfortunately there were three fatalities as a result of the tornado in Golden City. The cumulative rainfall caused areas of flash flooding with some flooding lingering across the region. Some locations in southeastern Kansas and southwestern Missouri reported in excess of 8 inches of rainfall over the 72 hour period. .

A National Weather Service storm survey confirmed an EF-1 tornado with maximum winds of 94 mph began in a wooded area about 4 miles south of Hazelgreen and continued east crossing Prairie Creek and into Pulaski County. Numerous trees were uprooted or snapped as the tornado moved across Laclede County. No structural damage occurred in Laclede County.

A National Weather Service storm survey confirmed an EF-1 tornado with maximum winds of 94 mph began in a wooded area about 4 miles south of Hazelgreen and continued east crossing Prairie Creek into Pulaski County. As the tornado moved east across Pulaski County, it uprooted or snapped numerous trees as it moved through a wooded area before crossing Highway K and the Gasconade River twice. It proceeded across Smokey and Seminole Lane and through a heavily wooded area. As it crossed Highway 17 it overturned or damaged three mobile homes and damaged several outbuildings along Sunnyside Road. Minor roof damage occurred to one home. The tornado then continued east across more heavily wooded areas before lifting just east of Skagway Road.

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

The warnings

38 minutes of warning. NWS SGF issued a tornado warning for this county at 06:11 UTC, 38 minutes before the tornado touched down, in force until 07:00 UTC.

The county was under a tornado watch, issued at 02:46 UTC and running to 11:00 UTC.

Issued (UTC)ExpiredProductOffice
15:15 UTC03:15 UTCFlood WarningSGF
15:26 UTC14:28 UTCFlood WarningSGF
15:31 UTC03:30 UTCFlood WarningSGF
20:12 UTC04:50 UTCFlood WarningSGF
02:46 UTC11:00 UTCTornado WatchSGF
04:12 UTC04:30 UTCSevere Thunderstorm WarningSGF
05:20 UTC06:00 UTCSevere Thunderstorm WarningSGF
05:33 UTC06:15 UTCSevere Thunderstorm WarningSGF
05:52 UTC06:01 UTCTornado WarningSGF
06:11 UTC07:00 UTCTornado WarningSGF
14:33 UTC17:26 UTCFlash Flood WarningSGF

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 06:07 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

6.8 hours before the tornado, 159 km from the path. May 23, 2019.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2019-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 2061 joules per kilogram, CIN -6, lifted condensation level 1242 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, Springfield, MO at 00:00Z on 2019-05-23The 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 154 square meters per square second, 0 to 6 km bulk shear 56 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
2061 J/kg
Mixed-layer CIN
-6 J/kg
Surface CAPE
3453 J/kg
Mixed-layer LCL
1242 m above ground
0-6 km bulk shear
56 kt
0-1 km bulk shear
22 kt
0-1 km storm-relative helicity
154 m²/s²
0-3 km storm-relative helicity
269 m²/s²
Significant tornado parameter
2.4
Supercell composite
17.1
0-3 km lapse rate
7.0 K/km

Open this sounding in Storm Lab

The radar

The Springfield radar (KSGF), 108 km away, was scanning. The volume nearest the touchdown began at 06:48 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
06:24 UTCHAIL 1.55 Wnw SleeperLaclede, MODELAYED REPORT. SOCIAL MEDIA PICTURE.
06:49 UTCTORNADO5 N Dry KnobLaclede, MOSTARTING POINT FOR SOUTH LAQUEY EF-1 TORNADO. NUMEROUS TREE DAMAGE AND MOBILE HOMES OVERTURNED.
07:10 UTCTORNADO4 Wnw Fort Leonard WoodPulaski, MOEND POINT FOR SOUTH LAQUEY TORNADO. NUMEROUS TREE DAMAGE AND MOBILE HOMES OVERTURNED.

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 MissouriEvery tornado in Missouri since 1950Warnings in force in Missouri nowThe forecast where you are

The other tornadoes of May 23, 2019

18 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 231:10 AM CDTEF1Piatt, IL1.3200
May 232:06 AM CDTEF1Vermilion, IL1.6200
May 238:15 AM CDTEF0Clay, IL0.720
May 233:27 PM EDTEF1Howard, MD5.51501
May 235:15 PM EDTEF1Grant, IN0.150
May 235:01 PM CDTEF0Randall, TX0.650
May 235:13 PM CDTEF0Armstrong, TX0.750
May 235:15 PM CDTEF0Randall, TX0.350
May 235:28 PM CDTUnratedTerry, TX0.110
May 236:14 PM CDTEF1Roberts, TX9.150
May 236:59 PM CDTEF2Roberts, TX17.5900
May 237:07 PM CDTEF0Roberts, TX0.020
May 239:14 PM EDTEF0Cambria, PA1.6300$10,000
May 238:26 PM CDTEF3Lipscomb, TX to OK15.71,500$170,000
May 238:43 PM CDTEF0Lipscomb, TX4.575
May 239:32 PM CDTUnratedHarper, OK0.550
May 239:43 PM CDTUnratedHarper, OK0.575
May 2310:42 PM CDTEF1Harper, OK2.0150$20,000

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.