Otter Tail County
Population 61,041 (2025) 1,972 sq mi
Otter Tail County has recorded 89 tornadoes since 1950, more than any other of Minnesota's 87 counties; the most recent was on June 16, 2025.
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths since 195089
- Wildfire burn scars since 19841
- Major flood years since 19781
At a glance
The record for Otter Tail County in eight numbers. Each links to its section below.
Tornadoes
About one tornado a year since 1950, 4 of them rated F3/EF3 or stronger.
Strongest
June 17, 2010
EF4, 39.6 mile path
2,288 yards wide; 1 killed along the whole path.
Deadliest
August 15, 1987
1 killed, F2
8 injured along the whole path.
Most recent
Monday, June 16, 2025
EFU, 0.6 mile path
Within the past year.
Every recorded tornado
| Jun 16, 2025 | EFU | 0.6 | 0 | 0 |
| Jun 16, 2025 | EFU | 0.3 | 0 | 0 |
| May 30, 2022 | EF1 | 5.4 | 0 | 0 |
| May 30, 2022 | EF1 | 4.5 | 0 | 0 |
| May 12, 2022 | EF0 | 0.9 | 0 | 0 |
| May 12, 2022 | EF1 | 3.6 | 0 | 0 |
| Jun 11, 2021 | EF0 | 0.1 | 0 | 0 |
| Jul 8, 2020 | EF0 | 0.2 | 0 | 0 |
| Jul 8, 2020 | EF4 | 8.9 | 2 | 1 |
| Jul 8, 2020 | EF2 | 2.0 | 0 | 0 |
| Jul 8, 2020 | EF1 | 18.7 | 0 | 0 |
| Jul 8, 2020 | EF1 | 12.4 | 0 | 0 |
| Aug 13, 2019 | EF0 | 0.2 | 0 | 0 |
| Jul 9, 2019 | EF1 | 2.0 | 0 | 0 |
| Jul 12, 2015 | EF1 | 0.1 | 0 | 0 |
| Jul 12, 2015 | EF1 | 2.0 | 0 | 0 |
| Jul 12, 2015 | EF0 | 0.5 | 0 | 0 |
| Jul 12, 2015 | EF0 | 3.0 | 0 | 0 |
| Sep 4, 2014 | EF1 | 2.0 | 0 | 0 |
| Sep 4, 2014 | EF2 | 2.7 | 0 | 0 |
| Jun 20, 2014 | EF0 | 0.3 | 0 | 0 |
| Aug 26, 2013 | EF0 | 0.1 | 0 | 0 |
| Apr 21, 2012 | EF1 | 2.1 | 0 | 0 |
| Aug 7, 2010 | EF1 | 2.2 | 0 | 0 |
| Aug 7, 2010 | EF0 | 0.2 | 0 | 0 |
| Aug 7, 2010 | EF1 | 4.0 | 0 | 0 |
| Jul 27, 2010 | EF0 | 0.4 | 0 | 0 |
| Jul 22, 2010 | EF0 | 1.0 | 0 | 0 |
| Jul 14, 2010 | EF1 | 8.4 | 0 | 0 |
| Jul 13, 2010 | EF0 | 0.2 | 0 | 0 |
| Jul 10, 2010 | EF0 | 0.4 | 0 | 0 |
| Jun 17, 2010 | EF4 | 10.0 | 20 | 0 |
| Jun 17, 2010 | EF1 | 1.5 | 0 | 0 |
| Jun 17, 2010 | EF0 | 0.2 | 0 | 0 |
| Jun 17, 2010 | EF4 | 39.6 | 5 | 1 |
| Jun 18, 2009 | EF1 | 1.0 | 0 | 0 |
| Jun 18, 2009 | EF0 | 3.0 | 0 | 0 |
| Jul 11, 2008 | EF1 | 1.0 | 0 | 0 |
| Jul 11, 2008 | EF1 | 2.0 | 0 | 0 |
| Jul 11, 2008 | EF0 | 0.2 | 0 | 0 |
| Jun 14, 2008 | EF1 | 2.6 | 0 | 0 |
| Jun 7, 2007 | EF2 | 7.0 | 0 | 0 |
| Jun 7, 2007 | EF1 | 5.8 | 0 | 0 |
| Jun 26, 2006 | F0 | 0.5 | 0 | 0 |
| Jun 5, 2006 | F1 | 1.0 | 0 | 0 |
| Aug 25, 2005 | F1 | 1.0 | 0 | 0 |
| Jun 29, 2005 | F2 | 1.5 | 0 | 0 |
| Jun 20, 2005 | F2 | 0.3 | 0 | 0 |
| Jun 20, 2005 | F2 | 4.0 | 0 | 0 |
| Jun 13, 2005 | F0 | 0.5 | 0 | 0 |
| Sep 5, 2004 | F2 | 4.0 | 0 | 0 |
| Aug 2, 2004 | F1 | 12.0 | 0 | 0 |
| Aug 2, 2004 | F1 | 7.0 | 0 | 0 |
| Jul 12, 2004 | F0 | 0.5 | 0 | 0 |
| Jul 12, 2004 | F1 | 14.0 | 0 | 0 |
| Jul 12, 2004 | F1 | 5.0 | 0 | 0 |
| May 11, 2004 | F1 | 0.2 | 0 | 0 |
| May 11, 2004 | F0 | 1.0 | 0 | 0 |
| May 11, 2004 | F0 | 0.1 | 0 | 0 |
| Jul 6, 2003 | F1 | 1.0 | 0 | 0 |
| Jun 16, 2001 | F0 | 0.5 | 0 | 0 |
| Jun 13, 2001 | F3 | 12.0 | 3 | 0 |
| Jun 9, 1999 | F0 | 0.5 | 0 | 0 |
| Jun 9, 1999 | F0 | 0.5 | 0 | 0 |
| Oct 26, 1996 | F2 | 17.0 | 1 | 0 |
| Aug 15, 1987 | F2 | 1.0 | 8 | 1 |
| Aug 15, 1987 | F0 | 0.5 | 0 | 0 |
| Jun 26, 1986 | F0 | 0.3 | 0 | 0 |
| Jun 26, 1986 | F0 | 0.2 | 0 | 0 |
| Aug 26, 1977 | F2 | 110.4 | 10 | 0 |
| Aug 20, 1975 | F1 | 18.1 | 0 | 0 |
| Jul 13, 1974 | F2 | 6.4 | 0 | 0 |
| Oct 11, 1973 | F0 | 0.8 | 0 | 0 |
| Aug 31, 1973 | F1 | 2.0 | 0 | 0 |
| Jul 14, 1968 | F0 | 0.1 | 0 | 0 |
| Jul 14, 1968 | F0 | 2.2 | 0 | 0 |
| Jun 9, 1968 | F1 | 0.3 | 0 | 0 |
| Aug 9, 1966 | F0 | 0.1 | 0 | 0 |
| May 5, 1965 | F2 | 24.3 | 0 | 0 |
| Sep 9, 1964 | F1 | 40.3 | 0 | 0 |
| May 5, 1964 | F2 | 0.1 | 13 | 0 |
| Jun 30, 1961 | F1 | 14.2 | 0 | 0 |
| Aug 25, 1960 | F2 | 0.1 | 0 | 0 |
| Jul 29, 1960 | F1 | 0.1 | 0 | 0 |
| Jul 7, 1959 | F2 | 2.5 | 0 | 0 |
| Jul 7, 1959 | F1 | 0.1 | 0 | 0 |
| Jun 27, 1957 | F1 | 0.1 | 0 | 0 |
| Jun 20, 1957 | F0 | 0.1 | 0 | 0 |
| Jun 18, 1955 | F0 | 0.1 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Otter Tail County: 3.
- Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.
Storm Prediction Center severe weather database, 1950 to 2025.
Hurricanes and tropical storms
No tropical storm or hurricane has tracked within 100 miles since records began in 1851.
Wildfire and smoke
2,456 acres burned in 1 large fire since 1984, equal to 0.2% of the land.
Largest
March 3, 2024
Doran Wma Fire, 2,455 acres
2,456 acres inside Otter Tail County.
Most recent
March 3, 2024
Doran Wma Fire
2,455 acres in total.
Every large fire
| Doran Wma | 2024 | 2,456 | 2,455 |
- Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.
Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.
Smoke overhead
Smokiest year
2023: 80 days
Heavy smoke on 37 days in 2021, the most of any year.
Last 10 years
34.8 days a year
Medium or heavy smoke, 2016 to 2025.
2025
32 days
Medium or heavy smoke. 44 so far in 2026.
- A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.
NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.
Floods and flood insurance
109 federal flood insurance claims since 1978, with $1.4 million paid.
Most claims in one year
2011: 46 claims
$812,000 paid.
2nd most
2001: 12 claims
$26,000 paid.
3rd most
1999: 7 claims
$134,000 paid.
Claims by ZIP code
| 56573 | 47 | $805,000 |
| 56544 | 12 | $149,000 |
| 56572 | 10 | $35,000 |
| 56515 | 9 | $21,000 |
| 56571 | 8 | $32,000 |
| 56537 | 7 | $260,000 |
Flood events since 1996
- Flash Flood39
- Flood11
- Heavy Rain5
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.
Drought
In severe drought or worse for 143 of 1,581 months since 1895 (9%); the longest spell lasted 25 months.
143
Months in severe drought or worse since 1895
63
Months in extreme drought
9%
Share of all months, severe or worse
23
Drought reports to the Weather Service since 1996
Lowest reading
July 1988
−6.96, extreme drought
Longest severe spell
25 months
July 1933 to July 1935.
Latest month
September 2026
+1.71, slightly wet
Last severe month: August 2023.
- The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.
NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.
Earthquakes and landslides
3 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 4.6 in 1975.
0
Magnitude 2.5+ inside the county since 1973
3
Magnitude 3+ within 50 miles since 1973
3
Magnitude 4+ within 50 miles since 1900
0
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
July 9, 1975
Magnitude 4.6
Near Morris, Minnesota; 32.2 miles away, 6.2 miles deep.
Most recent, magnitude 3 or more
October 20, 1995
Magnitude 3.7
8 km SSE of New Effington, South Dakota; 36.3 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| Jun 4, 1993 | 4.1 | 30.1 |
| Jul 9, 1975 | 4.6 | 32.2 |
| Sep 3, 1917 | 4.3 | 33.6 |
- Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the county boundary (or inside the county).
- Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).
USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.
Mapped landslides
79
Landslides mapped, probable or better
0
With a recorded date
1
Source inventory
Mapped by USGS MN (79).
- Landslides mapped in the USGS compilation of landslide inventories across the United States (version 3.0, 2025), rated probable or better. The compilation joins inventories made by federal and state agencies for different purposes and areas, so the number mapped in a county reflects how closely it has been surveyed as much as how often its slopes fail. An area with few records may simply not have been mapped. Deaths are as recorded in the inventories; a slide listed in two inventories is counted once.
USGS Landslide Inventories across the United States, version 3.0, retrieved October 27, 2026.
Severe weather and other events
1,523 events in the National Weather Service record, 1,388 of them since 1996.
286
Hail reports, 1 inch or larger
38
Hail, 2 inches or larger
319
Damaging gusts, 58 mph+
266
Winter weather events since 1996
10
Heat events since 1996
116
Cold events since 1996
Largest hail
July 8, 2000
4.50 inches
Strongest measured or estimated gust
June 17, 2010
145 mph
More event types since 1996
| Lightning | 7 | 0 |
Costliest events since 1996
- Jun 13, 2001Tornado$5.0 million
National Weather Service narrative
The tornado caused quite a bit of damage along its path across southeast Otter Tail county before it crossed into Todd county. At one farmstead, 9 people huddled inside a house with no basement as its roof was torn off. Nobody was injured, but another trailer home nearby was completely destroyed. Many irrigation systems were overturned, trees, power poles, and lines snapped, and grain bins destroyed by the strong wind. An estimated 100 poles were broken off leaving nearly 1,100 people without power. At another farm, a 40x80 foot pole barn was wrecked. About 6 miles northeast of Parkers Prairie, a man and his two kids rode out the storm in their minivan inside a quonset. Trees all…
- Jun 18, 2001Thunderstorm Wind$5.0 million
National Weather Service narrative
The strong wind knocked down trees and power lines. The city of Fergus Falls was without power for several hours. 30 to 40 homes sustained damage and many signs were knocked over.
- Sep 25, 1998Thunderstorm Wind$4.0 million
National Weather Service narrative
The strong winds hit New York Mills quite hard. 1,600 customers in the area lost power, with 50 power poles snapped in half. The city garage lost parts of its roof, as did the school gym and the school storage shed. A garage in the town was ripped in two, sending a portion of the roof into two vehicles parked two lots away. Numerous trees and signs were blown down.
- Sep 25, 1998Thunderstorm Wind$2.0 million
National Weather Service narrative
An 85,000 bushel grain bin was flattened against the Ottertail elevator. Another 90,000 bushel bin crumpled to the ground, and two other 45,000 bushel bins were damaged by the strong wind. Around the town, a storage shed was blown apart, a marine business was damaged, several irrigation systems were twisted, trees were uprooted, and many signs were damaged. A pontoon was picked up by the wind and thrown 150 feet into a spruce tree.
- Jul 8, 2020Tornado$1.5 million
National Weather Service narrative
This tornado began in Grant County, but after about two miles, it crossed into Otter Tail County, where it ended about 5 miles east of Dalton. The total track through both counties was about 9 miles. Peak winds were estimated at 170 mph, based on available damage indicators. At least 10 farmsteads were impacted, with three homes, one pole shed, and one machine shed destroyed.
- Jun 11, 2008High Wind, West Otter Tail$1.0 million
National Weather Service narrative
Extensive damage was reported around Pelican Lake, where 5 to 6 foot waves were observed. Trees were blown down, boats and pontoons were flipped, and docks were twisted. Trees were also blown down around the Pelican Rapids area.
- Jul 8, 2020Tornado$750,000
National Weather Service narrative
The tornado, wrapped in downburst winds and heavy rain, tracked intermittently to the east-northeast for nearly 18 miles. The tornado crossed Pickerel and Long lakes, and ended just before Rush Lake. It uprooted or snapped numerous trees and power poles. In the northeast corner of Long Lake, it tumbled several travel trailers, tore roof sections off a pole shed, and tumbled an irrigation system. Peak winds were estimated at 105 mph.
- Jul 12, 2004Tornado$600,000
National Weather Service narrative
Intermittent tree damage occurred from the east side of Lake Lizzie to Dent. Power outages occurred from trees falling on power lines. On West McDonald Lake, a 30 foot mobile home was overturned against an oak tree that was split in half. A tree also fell on a boat, destroying it. At Spirit Lake, 20 trees were damaged at a resort, some falling on resort cabins. A dock was also damaged. At Hoffman Lake, property owners reportedly saw the tornado coming across the lake. Many trees fell on homes or other property.
- Jul 8, 2020Thunderstorm Wind$500,000
National Weather Service narrative
Several large oak trees were snapped across the northern half of Western Township. A wide snarl was evident, indicating a weak embedded circulation in an otherwise downburst pattern.
- May 10, 1999Lightning$500,000
National Weather Service narrative
A church was destroyed after lightning ignited a fire in the roof.
- Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.
NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.
Weather records
No weather station within 40 miles has the 30 years of complete, current records this section needs.
Federal disaster declarations
17 since 1953. The most recent: Covid-19 Pandemic, April 7, 2020.
| Apr 7, 2020 | Biological | DR-4531-MN |
| Mar 13, 2020 | Biological | EM-3453-MN |
| May 10, 2011 | Flood | DR-1982-MN |
| Jul 2, 2010 | Tornado | DR-1921-MN |
| Apr 9, 2009 | Severe Storm | DR-1830-MN |
| Sep 13, 2005 | Hurricane | EM-3242-MN |
| May 16, 2001 | Flood | DR-1370-MN |
| Apr 8, 1997 | Flood | DR-1175-MN |
| Jan 16, 1997 | Severe Storm | DR-1158-MN |
| Aug 18, 1995 | Severe Storm | DR-1064-MN |
| Jun 11, 1993 | Severe Storm | DR-993-MN |
| Jun 17, 1976 | Drought | EM-3013-MN |
| Jul 17, 1975 | Severe Storm | DR-476-MN |
| Aug 1, 1972 | Flood | DR-347-MN |
| Apr 18, 1969 | Flood | DR-255-MN |
| Mar 22, 1966 | Flood | DR-215-MN |
| Apr 11, 1965 | Flood | DR-188-MN |
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.
How this compares
Where Otter Tail County stands among 87 counties in Minnesota and 3,143 in the United States.
| Tornadoes since 1950 | 89 | 1 / 87 |
| Tornadoes rated F3/EF3 or stronger | 4 | 7 / 87 |
| Tropical cyclones within 50 mi | 0 | — |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 2,456 | 24 / 87 |
| Flood insurance claims | 109 | 24 / 87 |
| Flood insurance paid | $1.4 million | 23 / 87 |
| Disaster declarations | 17 | 41 / 87 |
| Flood events since 1996 | 55 | 20 / 87 |
| Hail and wind events since 1996 | 814 | 3 / 87 |
| Winter storm events since 1996 | 266 | 4 / 87 |
| Reported damage since 1996 | $28.1 million | 31 / 87 |
| River crests at major flood stage | 0 | — |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 143 | 53 / 87 |
| Medium or heavy smoke days a year, last 10 years | 34.8 | 10 / 87 |
| Earthquakes M4+ within 50 mi since 1900 | 3 | 1 / 87 |
| Earthquakes M2.5+ in the county since 1973 | 0 | — |
Neighbouring counties
| Becker County | 35 | 0 |
| Clay County | 43 | 0 |
| Douglas County | 26 | 0 |
| Grant County | 33 | 0 |
| Todd County | 27 | 0 |
| Wadena County | 23 | 0 |
| Wilkin County | 35 | 0 |
Sources and vintage
Every number on this page comes from these public records.
- Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
- Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
- Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
- Storm events NOAA NCEI Storm Events Database, through 2026.
- Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
- Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
- Weather records NOAA NCEI Global Historical Climatology Network Daily.
- River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
- Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
- Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
- Landslides USGS Landslide Inventories across the United States, version 3.0 (2025).
- Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.
Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.