EF0 tornado, Boston to Milford, Missouri, April 20, 2025

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

April 20, 2025

Touchdown

2:29 PM CDT (19:29 UTC)

Lifted

2:50 PM CDT (19:50 UTC)

On the ground

21 minutes

Path length

19.8 miles (31.8 km)

Path width

300 yards (274 m)

Deaths

0

Injuries

0

Property damage

$3.4 million

County

Barton County

Touchdown point

37.390, -94.370

Lift-off point

37.610, -94.140

Record number

2504201329-01

13 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 90 mph.

• Small debris on south and east face of home.
• Metal barn roofing also scattered northward
• Roofing thrown northeast with nearby trees uprooted north
• Roof and attached deck torn off, trees uprooted. Home owner reported heavy rain falling at time of tornado

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

A strong storm system moved through the area on Sunday April 20th, 2025. This system brought tornadoes, damaging wind, large hail and heavy rain. The heavy rainfall led to flooding as the area had already received heavy rainfall from storms earlier in the week. Multiple area rivers reached minor to moderate flood stage due to heavy runoff.

An EF-0 tornado touched down in south-central Barton County in Missouri at 2:29 PM on April 20, 2025, tracking northeast through the city of Lamar before finally lifting northeast of Milford at 2:50 PM. The majority of damage from this tornado was in the city of Lamar, where it caused light to moderate damage to around 200 homes and businesses. Eyewitness accounts report a rain-wrapped tornado, and much of the debris field left behind consisted of light debris like leaf litter pressed to multiple sides of impacted structures by the rain. Straight line wind damage was also found to the east of the path in Lamar.

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

8 minutes of warning. NWS SGF issued a tornado warning for this county at 19:21 UTC, 8 minutes before the tornado touched down, in force until 19:45 UTC.

The county was under a tornado watch, issued at 17:03 UTC and running to 20:33 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 Enhanced Risk, with a 0.10 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. 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 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 Springfield radar (KSGF), 81 km away, was scanning. The volume nearest the touchdown began at 19:25 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 2025 tornado in MissouriEvery tornado in Missouri since 1950Warnings in force in Missouri nowThe forecast where you are

39 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.