Tornadoes · United States · Minnesota · 2024
EF0 tornado, Miesville to Martell, Minnesota, August 29, 2024
From Miesville to Martell, this EF0 tornado ran 7.9 miles across Dakota, Goodhue and Pierce counties on August 29, 2024, touching down at 5:46 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 mphthis tornado
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
EF186 to 110 mph
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
- EF0
- Date
- August 29, 2024
- Touchdown
- 5:46 PM CDT (22:46 UTC)
- Lifted
- 5:57 PM CDT (22:57 UTC)
- On the ground
- 11 minutes
- Path length
- 7.9 miles (12.8 km)
- Path width
- 50 yards (46 m)
- Deaths
- 0
- Injuries
- 0
- Counties
- Dakota, Goodhue and Pierce counties
- Touchdown point
- 44.644, -92.838
- Lift-off point
- 44.714, -92.711
- Record number
- 2408291646-01
The damage survey
16 damage points were recorded along this path by NWS MPX, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 90 mph.
- Concentrated damage, trees pointing northwest.
- Sporadic tree damage. Tornado ending point.
- Narrow path of tree damage. Large branches broken.
- Beginning of the tornado. Several trees uprooted at Bellwood Oaks Golf Course.
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
A well-defined cold front associated with a strong upper-level low produced widespread wind damage and a few tornadoes throughout central and eastern Minnesota and western Wisconsin on August 29th, 2024. Four tornadoes occurred. There were also a number of downbursts, with some of the most significant downburst damage in Champlin, Anoka, and Cottage Grove.
A well-defined cold front associated with a strong upper level low produced widespread wind damage in western Wisconsin, as well as three tornadoes in Pierce and St Croix Counties on August 29th, 2024.
A tornado developed at the southern edge of Bellwood Oaks Golf Course, uprooting several trees, then continued northeast. A narrow path of sporadic tree damage occurred along the track, with the last damage in Minnesota being on Blackbird Trail in Dakota County. The tornado tracked across a sliver of northern Goodhue County before crossing the Mississippi River into Wisconsin, dissipating about 5 miles southeast of Prescott in Pierce County.
A tornado developed at the southern edge of Bellwood Oaks Golf Course, in Dakota County. It moved northeast and tracked across a sliver of northern Goodhue County before crossing the Mississippi River into Wisconsin, dissipating about 5 miles southeast of Prescott in Pierce County.
A tornado developed at the southern edge of Bellwood Oaks Golf Course, in Dakota County. It moved northeast and tracked across a sliver of northern Goodhue County before crossing the Mississippi River into Wisconsin, about 5 miles southeast of Prescott. Several dozen trees were broken or uprooted and a trailer was flipped.
The tornado damaged a couple hundred trees along a sporadic path. It also hit a house, removing part of its roof with pole barn type construction, and one wall collapsed.
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.
The county was under a severe thunderstorm watch, issued at 19:34 UTC and running to 23:51 UTC.
| Issued (UTC) | Expired | Product | Office |
|---|---|---|---|
| 19:34 UTC | 23:51 UTC | Severe Thunderstorm Watch | MPX |
| 20:42 UTC | 21:30 UTC | Severe Thunderstorm Warning | MPX |
| 21:18 UTC | 22:15 UTC | Severe Thunderstorm Warning | MPX |
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 Enhanced Risk, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 19:54 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.
Minneapolis, MN (KMPX), 12:00Z
10.8 hours before the tornado, 68 km from the path. August 29, 2024.
- Mixed-layer CAPE
- 832 J/kg
- Mixed-layer CIN
- -148 J/kg
- Surface CAPE
- 20 J/kg
- Mixed-layer LCL
- 584 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 242 m²/s²
- 0-3 km storm-relative helicity
- 296 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.9
- 0-3 km lapse rate
- 4.0 K/km
Minneapolis, MN (KMPX), 00:00Z
1.2 hours after it, 68 km from the path. August 30, 2024.
- Mixed-layer CAPE
- 24 J/kg
- Mixed-layer CIN
- -144 J/kg
- Surface CAPE
- 48 J/kg
- Mixed-layer LCL
- 907 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 154 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
- 0-3 km lapse rate
- 4.7 K/km
The radar
The Minneapolis radar (KMPX), 65 km away, was scanning. The volume nearest the touchdown began at 22:47 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 |
|---|---|---|---|---|
| 21:29 UTC | TSTM WND DMG | 1 S Hopkins | Hennepin, MN | Photo of large tree down measuring 22 inches in diameter. Time estimated via radar. |
| 21:56 UTC | TSTM WND DMG | 3 E Eagan | Dakota, MN | Photo of significant tree damage sent via Twitter. |
| 21:56 UTC | TSTM WND DMG | 3 Se Eagan | Dakota, MN | Photo report via X. Maple tree snapped near base. Time estimated from radar. |
| 21:56 UTC | TSTM WND DMG | Eagan | Dakota, MN | Photo report via X. Large tree snapped at base. Time estimated from radar. |
| 22:10 UTC | TSTM WND DMG | 1 Nnw Faribault | Rice, MN | Multiple large trees downed with some landing on power lines, resulting in power outages across north Faribault. |
| 22:30 UTC | TSTM WND DMG | 1 W Cottage Grove | Washington, MN | Damage to shed along with multiple trees blown over and uprooted in the neighborhood. Time provided by caller. |
| 22:46 UTC | TSTM WND DMG | 3 Nnw Miesville | Dakota, MN | Snapped mature trees at Golf Course. Photos sent via email. |
| 22:47 UTC | TORNADO | 3 Nnw Miesville | Dakota, MN | A damage survey confirmed a tornado southwest of Ravenna MN. |
| 23:09 UTC | TSTM WND DMG | 5 Se River Falls | Pierce, WI | Delayed report, time estimated from radar. Tree uprooted. |
| 23:10 UTC | TORNADO | 4 Se River Falls | Pierce, WI | Multiple reports of brief tornado touching down south of River Falls that has now lifted or become rain wrapped. |
| 23:13 UTC | TSTM WND DMG | 3 Nnw Ellsworth | Pierce, WI | Photos provided via social media of several trees down in the town of Beldenville. Time estimated via radar. Time estimated via radar. |
| 23:13 UTC | TORNADO | 8 Nw El Paso | Pierce, WI | County dispatch reported numerous trees and power lines down between River Falls and Spring Valley along Hwy 29 between Co Rd W and 650th St. Time estimated via radar. |
| 23:15 UTC | TSTM WND DMG | 3 Se Woodville | St. Croix, WI | Delayed report of several large trees snapped and uprooted along CR NN near Wilson. Time estimated from radar. |
| 23:30 UTC | TSTM WND DMG | 4 N Spring Valley | St. Croix, WI | Reported via X. Lots of tree damage along CR-nn especially near house #435 both N and S. |
| 23:36 UTC | TSTM WND DMG | 2 S Wilson | St. Croix, WI | Large tree down blocking road just south of I-94 near Wilson. Time estimated from radar. |
| 23:37 UTC | TSTM WND DMG | 2 Ssw Wilson | St. Croix, WI | 2 semi-trailers detached and flipped at truck stop by Kwik Trip. Reported via phone. Time estimated via radar. |
| 23:37 UTC | TORNADO | 2 Sw Wilson | St. Croix, WI | Law enforcement reported numerous trees downed in several directions, and a street sign snapped in half near exit 28 along I-94. |
From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.
This ground now
The live radar over the trackEvery 2024 tornado in MinnesotaEvery tornado in Minnesota since 1950Warnings in force in Minnesota nowThe forecast where you are
The other tornadoes of August 29, 2024
7 more were confirmed in the United States that day.
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| August 29 | 3:05 PM CDT | Unrated | Dickinson, IA | 0.8 | 25 | |||
| August 29 | 4:17 PM EDT | EF1 | Blair, PA | 0.8 | 100 | $8,000 | ||
| August 29 | 3:35 PM CDT | EF1 | Morrison, MN | 7.5 | 50 | |||
| August 29 | 4:26 PM CDT | EF1 | Anoka, MN | 3.6 | 250 | |||
| August 29 | 4:32 PM CDT | EF1 | Anoka, MN | 9.6 | 250 | |||
| August 29 | 6:06 PM CDT | EF0 | Pierce, WI | 6.7 | 50 | |||
| August 29 | 6:30 PM CDT | EF0 | Saint Croix, WI | 1.7 | 50 |
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.