Overview
**This information is preliminary and will be updated over the next few days** A well defined cold front associated with a strong upper level low produced widespread wind damage and isolated tornadoes throughout central and eastern Minnesota and western Wisconsin on August 29th, 2024. |  Preliminary storm reports from August 29, 2024. For the latest storm reports, please visit theStorm Prediction Center. |
- Tornado
- Wind
- Radar
- Rainfall
Tornadoes:
Three tornadoes have been confirmed by the NWS Twin Cities. One in Anoka County just north of Andover, another in northern Anoka and southern Isanti counties, and one in Dakota County. Pierce and St. Croix Counties in Wisconsin each had one tornado.We're still determining path length and ratings as we assess the damage. More tornadoes may be confirmed as damage crews further investigate reports.
Overview of tornado tracks from August 29, 2024
Tornado - Andover
Anoka County
| Date | 29 August 2024 |
| Time (Local) | 4:26-4:29 PM CDT |
| EF Rating | EF1 |
| Est. Peak Winds | 90 mph |
| Path Length | 3.6 miles |
| Max Width | 250 yards |
Summary: Tornado developed north of Andover in central Anoka County and continued north northeast 3.6 miles. Several trees were snapped or uprooted. | |
Track Map
Downloadable KMZ File
Tornado - Bethel
Anoka and Isanti Counties
| Date | 29 August 2024 |
| Time (Local) | 4:32-4:43 PM CDT |
| EF Rating | EF1 |
| Est. Peak Winds | 95 mph |
| Path Length | 9.7 miles |
| Max Width | 250 yards |
Summary: Tornado developed north of Oak Grove in Anoka County and continued northeast to 5 miles east southeast of Isanti in Isanti County. Trees were uprooted, two farm outbuildings were destroyed, and a pole barn sustained roof damage. | |
Track Map
Downloadable KMZ File
Tornado - North of Miesville
DakotaCounty
| Date | 29 August 2024 |
| Time (Local) | 5:47-5:51 PM CDT |
| EF Rating | EF0 |
| Est. Peak Winds | 80 mph |
| Path Length | 3.6 miles |
| Max Width | 150 yards |
Summary: Tornado developed at Bellwood Oaks Golf Course, uprooting several trees, then continued northeast. A narrow path of sporadic tree damage occurred along the track until it dissipated near the intersection of 190th St E and Patrick Ave. | |
Track Map
Downloadable KMZ File
Tornado - Near Beldenville
Pierce County
| Date | 29 August 2024 |
| Time (Local) | 6:06 - 6:15PM CDT |
| EF Rating | EF0 |
| Est. Peak Winds | 80 mph |
| Path Length | 6.6 miles |
| Max Width | 25 yards |
Summary: Tornado developed 2.9 miles WNW of Beldenville anduprooted or broke limbs off of several dozen trees. | |
Track Map
Downloadable KMZ File
Tornado - I-94 in near Wilson
St. Croix County
| Date | 29 August 2024 |
| Time (Local) | 6:31 - 6:33 PM CDT |
| EF Rating | EF0 |
| Est. Peak Winds | 70 mph |
| Path Length | 1.0 mile |
| Max Width | 25 yards |
Summary: Brief tornado crossed I-94 in western St. Croix County and broke several dozen trees. | |
Track Map
Downloadable KMZ File
The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
| EF0 Weak 65-85 mph | EF1 Moderate 86-110 mph | EF2 Significant 111-135 mph | EF3 Severe 136-165 mph | EF4 Extreme 166-200 mph | EF5 Catastrophic 200+ mph |
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Wind:
There was extensive wind damage that occurred. This event did not have as much widespread damage reported as with the storms on August 26/27, 2024, however it did impact a lot of the same areas which further exasperated power outages and response efforts.
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| Large tree downed in Eden Prairie. Photo credit to Jay Wood. | Large tree snapped near its base, blocking a road in Willmar, MN. Photo credit to @gopherhockeysi on X. | Several large trees downed and pontoon boat and cover flipped near Weaver Lake in Maple Grove, MN. Photo credit to Andrew Siffert. | Large camper trailer tipped and blocking the road near 229th Avenue and Holly Street within St. Francis, MN. |
Radar
Hourly timesteps ofBase Reflectivity and Base Velocity as the storms developed over western Minnesotaand travelled east into western Wisconsin.
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| Base Reflectivity (left) and Base Velocity (right) at 2PM CDT. Scattered storms began to develop during the afternoon over parts of western MN along the frontal boundary. | Base Reflectivity (left) and Base Velocity (right) at 3PM CDT. Storms began to congeal into a line, especially across central MN. | Base Reflectivity (left) and Base Velocity (right) at 4PM CDT. Winds intensified over Carver County as the line began to push into the Twin Cities Metro. |
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| Base Reflectivity (left) and Base Velocity (right) at 5PM CDT. The line intensified with strong winds stretching from Isanti County south towards northern Dakota County. | Base Reflectivity (left) and Base Velocity (right) at 6PM CDT. Overall strength of the winds weakened as the line moved into Wisconsin, however there was still a risk of embedded tornados along the line. | Base Reflectivity (left) and Base Velocity (right) at 7PM CDT. The line intensified again, resulting in widespread wind damage in Dunn, Pierce, and St. Croix Counties. |
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| Base Reflectivity (left) and Base Velocity (right) at 8PM CDT. The line began to weaken again as it moved further into Wisconsin. |
Rain Reports
The line of storms move quickly through western and central MN, limiting rainfall totals. Storm motion slow quite a bit as the line moved into Wisconsin, resulting in pockets of 2"+ of rain. Parts of southern Polk County received over 3" of rain, resulting in areas of flash flooding in some cities.
