Tornadoes · United States · Illinois · 2025
EF1 tornado, Monmouth to Coldbrook, Illinois, June 3, 2025
From Monmouth to Coldbrook, this EF1 tornado ran 7.8 miles across Warren County on June 3, 2025, touching down at 6:46 PM CDT and reaching 50 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.
EF065 to 85 mph
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mphthis tornado
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
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.
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.
EF4166 to 200 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
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.
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
- June 3, 2025
- Touchdown
- 6:46 PM CDT (23:46 UTC)
- Lifted
- 6:57 PM CDT (23:57 UTC)
- On the ground
- 11 minutes
- Path length
- 7.8 miles (12.5 km)
- Path width
- 50 yards (46 m)
- Deaths
- 0
- Injuries
- 0
- County
- Warren County
- Touchdown point
- 40.890, -90.640
- Lift-off point
- 40.980, -90.550
- Record number
- 2506031746-01
What the Weather Service recorded
In the late afternoon of June 3rd, a line of thunderstorms developed in northeast Missouri, and spread into far southeast Iowa and Illinois. These storms rapidly became severe. The thunderstorms quickly moved northeast across southeast Iowa, west central, and northwest Illinois between 530 PM and 8 PM CDT. This line of storms produced 8 tornadoes, along with isolated pockets of higher end wind damage from estimated winds of 80 to 100 mph. A cluster of several tornadoes moved into the the southern portions of the Quad Cities IA/IL metro area, producing EF1 damage into Moline Illinois.
An EF1 tornado with maximum wind speeds of 100 mph touched down on the south side of Monmouth, and move northeast through town, damaging trees, sheds, and a garage. A roof was torn off a mobile home, and roof damaged on a house. It continued northeast where it tore the roof off a shop building and damaged trees southeast of Gerlaw.
From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.
The warnings
17 minutes of warning. NWS DVN issued a tornado warning for this county at 23:29 UTC, 17 minutes before the tornado touched down, in force until 00:00 UTC.
The county was under a severe thunderstorm watch, issued at 21:44 UTC and running to 00:55 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 21:44 UTC | 00:55 UTC | Severe Thunderstorm Watch | DVN |
| 23:23 UTC | 00:30 UTC | Severe Thunderstorm Warning | DVN |
| 23:29 UTC | 00:00 UTC | Tornado Warning | DVN |
| 23:47 UTC | 00:15 UTC | Tornado Warning | DVN |
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 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 19:55 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.
Davenport, (KDVN), 12:00Z
11.8 hours before the tornado, 77 km from the path. June 3, 2025.
- Mixed-layer CAPE
- 114 J/kg
- Mixed-layer CIN
- -81 J/kg
- Surface CAPE
- 76 J/kg
- Mixed-layer LCL
- 1180 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 4.9 K/km
Davenport, (KDVN), 00:00Z
0.2 hours after it, 77 km from the path. June 4, 2025.
- Mixed-layer CAPE
- 222 J/kg
- Mixed-layer CIN
- -20 J/kg
- Surface CAPE
- 1411 J/kg
- Mixed-layer LCL
- 903 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 261 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 5.8
- 0-3 km lapse rate
- 6.4 K/km
The surface observations
Galesburg (GBG), 14 km from the path, in the two hours either side.
| Time (UTC) | Temp (°F) | Dew point (°F) | Wind | Gust (kt) | Pressure (mb) | Weather |
|---|---|---|---|---|---|---|
| 21:55 UTC | 80.6 | 66 | 170° 13 kt | 18 | 1008.5 | |
| 22:15 UTC | 81 | 67 | 180° 8 kt | 1008.1 | ||
| 22:35 UTC | 80.4 | 66.2 | 180° 11 kt | 16 | 1007.8 | |
| 22:55 UTC | 81 | 66.6 | 180° 10 kt | 15 | 1007.5 | |
| 23:15 UTC | 79.7 | 66.7 | 170° 7 kt | 1007.8 | ||
| 23:35 UTC | 79 | 66.6 | 160° 8 kt | 1007.1 | ||
| 23:55 UTC | 78.8 | 66.6 | 170° 9 kt | 1007.8 | ||
| 00:15 UTC | 68 | 63 | 240° 15 kt | 33 | 1009.8 | +RA |
| 00:35 UTC | 66.6 | 64.2 | 220° 9 kt | 1010.2 | +RA | |
| 00:55 UTC | 66 | 66 | 190° 6 kt | 1010.2 | RA | |
| 01:15 UTC | 65.5 | 65.5 | 190° 6 kt | 1010.2 | RA | |
| 01:35 UTC | 65.5 | 65.5 | 170° 3 kt | 1010.2 | +RA |
From the Iowa Environmental Mesonet's archive of airport observations.
The radar
The Quad Cities radar (KDVN), 75 km away, was scanning. The volume nearest the touchdown began at 23:44 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) | Report | Where | County | Remark |
|---|---|---|---|---|
| 23:35 UTC | TSTM WND DMG | New Boston | Mercer, IL | Large tree branches down throughout town, some whole trees down. Time estimated from radar data. |
| 23:38 UTC | TORNADO | New Boston | Mercer, IL | This EF1 tornado developed over New Boston and persisted for a short time after departing town to the northeast. Concentrated damage in town included a roof blown off a downtown masonry building and numerous trees uproot |
| 23:40 UTC | TSTM WND GST 72 | 2 Sw Lone Tree | Henderson, IL | |
| 23:42 UTC | TORNADO | 3 W Joy | Mercer, IL | This long-lived EF1 tornado began west of the town of Joy and tracked through Millersburg and ended about a mile and a half west of Illinois 94. Significant damage to numerous trees as well as utility poles, along with m |
| 23:46 UTC | TORNADO | 1 S Monmouth | Warren, IL | An EF1 tornado with maximum wind speeds of 100 mph touched down on the south side of Monmouth, and move northeast through town, damaging trees, sheds, and a garage. A roof was torn off a mobile home, and roof damaged on |
| 23:48 UTC | TSTM WND GST 60 | 1 Ssw Monmouth | Warren, IL | 50 to 60 mph wind gusts with torrential rain. Relayed from HAM radio. |
| 23:57 UTC | TORNADO | 2 Nnw Hamlet | Rock Island, IL | This brief EF0 tornado developed with a short-lived rotation area moving near due north south of Edgington. Some sections of trees were snapped. |
| 23:57 UTC | TORNADO | 2 S Edgington | Rock Island, IL | This EF1 tornado developed southwest of Taylor Ridge and crossed Illinois 192, doing heavy damage to three large empty grain bins and destroying an outbuilding. Damage done to trees as well. |
| 23:59 UTC | TORNADO | 2 E Hamlet | Mercer, IL | This EF1 tornado tracked through Reynolds producing damage to mainly trees. |
| 00:01 UTC | TSTM WND DMG | Reynolds | Rock Island, IL | Numerous tree branches down. |
| 00:02 UTC | TSTM WND DMG | 2 Ese Edgington | Rock Island, IL | Grain bins damaged. Possible tornado. Time estimated from radar data. |
| 00:05 UTC | TSTM WND DMG | Alexis | Warren, IL | Widespread wind damage with reports of shed roofs ripped off and large trees down. |
| 00:10 UTC | TSTM WND DMG | 1 Ne Coyne Center | Rock Island, IL | Numerous trees down. Possible tornado. Time estimated from radar data. |
| 00:10 UTC | TSTM WND DMG | 2 E Andalusia | Rock Island, IL | One half of large tree down. Time estimated from radar information. |
| 00:10 UTC | TSTM WND DMG | Oak Grove | Rock Island, IL | Significant damage to mobile homes. Time estimated based on radar. |
| 00:10 UTC | TORNADO | 1 Sw Coyne Center | Rock Island, IL | This longer lived EF1 tornado tracked from southwest of Coyne Center into the southern Quad Cities metro area ending near the Avenue of the Cities in Moline. This tornado did heavy tree damage near and in a mobile home p |
| 00:12 UTC | TSTM WND DMG | 2 Wnw Oak Grove | Rock Island, IL | Power pole broken off. Relayed by media. Time estimated from radar data. |
| 00:16 UTC | TSTM WND DMG | 1 Nw Coal Valley | Rock Island, IL | Half of a large tree down. |
| 00:22 UTC | TSTM WND DMG | 1 Ese Moline | Rock Island, IL | Large Tree Down. |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2025 tornado in IllinoisEvery tornado in Illinois since 1950Warnings in force in Illinois nowThe forecast where you are
The other tornadoes of June 3, 2025
18 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| June 3 | 2:24 PM CDT | EF0 | Jackson, MO | 0.8 | 40 | |||
| June 3 | 2:35 PM CDT | EF1 | Jackson, MO | 3.7 | 50 | |||
| June 3 | 3:45 PM CDT | EF0 | Grant, OK | 0.2 | 30 | |||
| June 3 | 3:49 PM CDT | Unrated | Noble, OK | 0.1 | 20 | |||
| June 3 | 4:35 PM CDT | EF0 | Canadian, OK | 0.6 | 20 | $3,000 | ||
| June 3 | 4:37 PM CDT | EF0 | Wright, MO | 0.4 | 100 | $8,000 | ||
| June 3 | 5:00 PM CDT | EF1 | McClain, OK | 2.8 | 125 | $60,000 | ||
| June 3 | 5:39 PM CDT | EF1 | Garvin, OK | 2.4 | 150 | $10,000 | ||
| June 3 | 5:58 PM CDT | EF0 | Lee, IA | 0.5 | 100 | |||
| June 3 | 6:10 PM CDT | Unrated | Archer, TX | 0.1 | 50 | |||
| June 3 | 6:39 PM CDT | EF1 | Mercer, IL | 1.6 | 175 | |||
| June 3 | 6:42 PM CDT | EF1 | Mercer, IL | 10.8 | 250 | |||
| June 3 | 6:57 PM CDT | EF0 | Rock Island, IL | 1.2 | 25 | |||
| June 3 | 6:57 PM CDT | EF1 | Rock Island, IL | 14.4 | 300 | |||
| June 3 | 6:59 PM CDT | EF1 | Mercer, IL | 3.8 | 100 | |||
| June 3 | 7:06 PM CDT | EF1 | Rock Island, IL | 12.4 | 300 | |||
| June 3 | 8:28 PM CDT | EF0 | Atoka, OK | 4.5 | 100 | |||
| June 3 | 9:05 PM CDT | EF0 | Boone, IL | 0.3 | 75 |
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.