EF0 tornado, Maysville to Davenport Arpt, Iowa, June 24, 2023

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.

Rating

EF0

Date

June 24, 2023

Touchdown

10:31 PM CDT (03:31 UTC)

Lifted

10:45 PM CDT (03:45 UTC)

On the ground

14 minutes

Path length

9.6 miles (15.5 km)

Path width

20 yards (18 m)

Deaths

0

Injuries

0

County

Scott County

Touchdown point

41.600, -90.710

Lift-off point

41.610, -90.530

Record number

2306242131-01

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

• Convergent swirl marks in grass.
• Minor soffit and shingle damage.
• Damage to tents, canopies, and equipment.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

Scattered severe storms tracked across southeast Iowa during the mid-afternoon into early evening of June 24, producing large hail up to golf ball size in Van Buren County and tennis ball size hail near Ottumwa.||More organized clusters of severe storms tracked through Dubuque into far northwest IL during the evening and late night hours of June 24. Another storm cluster moved through the Quad Cities, producing wind gusts to 70 mph at the Davenport ASOS and damage to trees and power poles. An EF-0 tornado also tracked east along and north of I-80 near the Davenport Airport, causing sporadic minor tree and structure damage. This storm impacted the Quad City Airshow grounds, while no visitors were present.

A tornado developed about 2 miles east of Walcott along Interstate 80. The tornado tracked east and caused sporadic minor tree and structure damage at the Northwest Boulevard exit just north of I-80. The tornado then moved across the Davenport Airport, and caused damage to canopies, tents, and equipment, which was hosting an airshow. The tornado passed just south of the NWS office, then continued east, producing minor tree and structure damage along 210th St. The tornado followed an intermittent path of around 9.6 miles, and was on the ground intermittently for about 14 minutes. The tornado was rated EF-0, with maximum estimated winds around 75 mph. Occasional minor tree damage was also observed south of the path, due to straight line winds.

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

0 minutes of warning. NWS DVN issued a tornado warning for this county at 03:31 UTC, 0 minutes before the tornado touched down, in force until 04:15 UTC.

The county was under a severe thunderstorm watch, issued at 23:30 UTC and running to 07:00 UTC.

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 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 01:18 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 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.

The Quad Cities radar (KDVN), 3 km away, was scanning. The volume nearest the touchdown began at 03:33 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.

Local storm reports within 60 km of the path, in the three hours either side.

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

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

12 more were confirmed in the United States that day.

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.

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.