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 for Otter Tail County Tornado: 58th percentile. Tropical: 0th percentile. Wildfire: 10th percentile. Flood: 22th percentile. Hail & wind: 48th percentile. Heat: 53th percentile. Cold: 99th percentile. Winter: 93th percentile. TORTROPFIREFLOODSEVEREHEATCOLDWINTER

Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed

2026
  • 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 since 1950

89

Most of any of Minnesota’s 87 counties

3.3 times the typical Minnesota county

Details

Flood insurance claims

109

24th of 87 in Minnesota

$1.4 million paid since 1978

Details

Acres burned since 1984

2,456

24th of 87 in Minnesota

1 large fire; the largest was Doran Wma, 2024

Details

Strongest tornado

EF4

June 17, 2010, 39.6 mile path

Largest earthquake within 50 mi

4.6magnitude

July 9, 1975, 32.2 miles away

Details

Federal disaster declarations

17

Most recent: Covid-19 Pandemic, 2020

Details

Costliest event since 1996

$5.0M

Tornado, June 13, 2001

Details

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.

Tornadoes by decade Doppler radar era² 1950s: 5 5 1960s: 10 10 1970s: 5 5 1980s: 4 4 1990s: 3 3 2000s: 27 27 2010s: 23 23 2020s: 12 12 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 0 A: 1 M: 9 J: 30 30 J: 28 A: 15 S: 4 O: 2 N: 0 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes in Otter Tail County since 1950
Jun 16, 2025EFU0.65000
Jun 16, 2025EFU0.35000
May 30, 2022EF15.430000
May 30, 2022EF14.520000
May 12, 2022EF00.95000
May 12, 2022EF13.610000
Jun 11, 2021EF00.11000
Jul 8, 2020EF00.22000
Jul 8, 2020EF48.965021
Jul 8, 2020EF22.030000
Jul 8, 2020EF118.725000
Jul 8, 2020EF112.420000
Aug 13, 2019EF00.210000
Jul 9, 2019EF12.015000
Jul 12, 2015EF10.13000
Jul 12, 2015EF12.015000
Jul 12, 2015EF00.515000
Jul 12, 2015EF03.010000
Sep 4, 2014EF12.025000
Sep 4, 2014EF22.720000
Jun 20, 2014EF00.32000
Aug 26, 2013EF00.15000
Apr 21, 2012EF12.15000
Aug 7, 2010EF12.27500
Aug 7, 2010EF00.22500
Aug 7, 2010EF14.07500
Jul 27, 2010EF00.41500
Jul 22, 2010EF01.01500
Jul 14, 2010EF18.420000
Jul 13, 2010EF00.22500
Jul 10, 2010EF00.41500
Jun 17, 2010EF410.01,936200
Jun 17, 2010EF11.54000
Jun 17, 2010EF00.21500
Jun 17, 2010EF439.62,28851
Jun 18, 2009EF11.015000
Jun 18, 2009EF03.07500
Jul 11, 2008EF11.05000
Jul 11, 2008EF12.010000
Jul 11, 2008EF00.22500
Jun 14, 2008EF12.65000
Jun 7, 2007EF27.015000
Jun 7, 2007EF15.810000
Jun 26, 2006F00.52500
Jun 5, 2006F11.05000
Aug 25, 2005F11.05000
Jun 29, 2005F21.520000
Jun 20, 2005F20.320000
Jun 20, 2005F24.020000
Jun 13, 2005F00.55000
Sep 5, 2004F24.010000
Aug 2, 2004F112.010000
Aug 2, 2004F17.010000
Jul 12, 2004F00.52500
Jul 12, 2004F114.05000
Jul 12, 2004F15.05000
May 11, 2004F10.25000
May 11, 2004F01.02500
May 11, 2004F00.12500
Jul 6, 2003F11.05000
Jun 16, 2001F00.52500
Jun 13, 2001F312.010030
Jun 9, 1999F00.5000
Jun 9, 1999F00.5000
Oct 26, 1996F217.07510
Aug 15, 1987F21.05081
Aug 15, 1987F00.52000
Jun 26, 1986F00.32000
Jun 26, 1986F00.22000
Aug 26, 1977F2110.4880100
Aug 20, 1975F118.150000
Jul 13, 1974F26.450000
Oct 11, 1973F00.810000
Aug 31, 1973F12.04000
Jul 14, 1968F00.11000
Jul 14, 1968F02.21000
Jun 9, 1968F10.32000
Aug 9, 1966F00.11000
May 5, 1965F224.310000
Sep 9, 1964F140.315000
May 5, 1964F20.1880130
Jun 30, 1961F114.21000
Aug 25, 1960F20.11000
Jul 29, 1960F10.11000
Jul 7, 1959F22.510000
Jul 7, 1959F10.13000
Jun 27, 1957F10.11000
Jun 20, 1957F00.11000
Jun 18, 1955F00.11000
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Otter Tail County: 3.
  2. 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.

Acres burned since 1984, cumulative 2024: 2,456 2,456 acres 198519901995200020052010201520202025
Running total of acres burned inside the county (line) and each year’s acres (bars).

Every large fire

Large wildfires since 1984
Doran Wma20242,4562,455
  1. 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.

Days with medium or heavy smoke overhead, by year 2011: 8 2012: 24 2013: 20 2014: 16 2015: 28 2016: 9 2017: 17 2018: 32 2019: 18 2020: 25 2021: 60 2022: 26 2023: 80 80 2024: 49 2025: 32 201120122013201420152016201720182019202020212022202320242025
Days each year on which a satellite-traced plume of medium or heavy smoke covered the county’s population centre, 2011 to 2025.
  1. 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.

Federal flood insurance claims by year 1999: 7 2001: 12 2007: 5 2011: 46 46 2014: 6 1999
Claims per year since 1978. Years with fewer than five claims are not shown.

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

Flood insurance claims by ZIP code
5657347$805,000
5654412$149,000
5657210$35,000
565159$21,000
565718$32,000
565377$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.

Months in severe drought or worse, by year 1895: 0 1896: 0 1897: 0 1898: 0 1899: 0 1900: 2 1901: 0 1902: 0 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 0 1909: 0 1910: 6 1911: 10 1912: 2 1913: 0 1914: 0 1915: 0 1916: 0 1917: 3 1918: 8 1919: 0 1920: 0 1921: 0 1922: 3 1923: 0 1924: 4 1925: 0 1926: 0 1927: 0 1928: 0 1929: 1 1930: 2 1931: 4 1932: 3 1933: 6 1934: 12 12 1935: 10 1936: 7 1937: 3 1938: 1 1939: 4 1940: 3 1941: 0 1942: 0 1943: 0 1944: 0 1945: 0 1946: 0 1947: 0 1948: 0 1949: 0 1950: 0 1951: 0 1952: 0 1953: 0 1954: 0 1955: 0 1956: 0 1957: 0 1958: 0 1959: 0 1960: 0 1961: 3 1962: 0 1963: 0 1964: 0 1965: 0 1966: 0 1967: 2 1968: 3 1969: 0 1970: 1 1971: 0 1972: 0 1973: 0 1974: 0 1975: 0 1976: 6 1977: 7 1978: 0 1979: 0 1980: 0 1981: 3 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 1 1988: 11 1989: 3 1990: 0 1991: 0 1992: 0 1993: 0 1994: 0 1995: 0 1996: 0 1997: 0 1998: 0 1999: 0 2000: 0 2001: 0 2002: 0 2003: 0 2004: 1 2005: 0 2006: 0 2007: 0 2008: 1 2009: 0 2010: 0 2011: 0 2012: 1 2013: 0 2014: 0 2015: 0 2016: 1 2017: 0 2018: 0 2019: 0 2020: 0 2021: 3 2022: 0 2023: 2 2024: 0 2025: 0 18951905191519251935194519551965197519851995200520152025
Months each year with a Palmer index of −3 or lower, 1895 to 2025. Twelve means the whole year.
  1. 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.

Earthquakes of magnitude 3 or more within 50 miles, by year 1973: 0 1974: 0 1975: 1 1 1976: 0 1977: 0 1978: 0 1979: 0 1980: 0 1981: 0 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 0 1988: 0 1989: 0 1990: 0 1991: 0 1992: 0 1993: 1 1994: 0 1995: 1 1996: 0 1997: 0 1998: 0 1999: 0 2000: 0 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 0 2007: 0 2008: 0 2009: 0 2010: 0 2011: 0 2012: 0 2013: 0 2014: 0 2015: 0 2016: 0 2017: 0 2018: 0 2019: 0 2020: 0 2021: 0 2022: 0 2023: 0 2024: 0 2025: 0 19731978198319881993199820032008201320182023
Per year, 1973 to 2025.

Every earthquake of magnitude 4 or more within 50 miles

Earthquakes of magnitude 4 or more within 50 miles
Jun 4, 19934.130.16.211 km N of Johnson, Minnesota
Jul 9, 19754.632.26.2Near Morris, Minnesota
Sep 3, 19174.333.6—Central Minnesota
  1. 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).
  2. 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).

  1. 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

Other Storm Events types since 1996
Lightning701Jul 7, 2002

Costliest events since 1996

  1. 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…

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. May 10, 1999Lightning$500,000
    National Weather Service narrative

    A church was destroyed after lightning ignited a fire in the roof.

  1. 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.

Federal disaster declarations
Apr 7, 2020BiologicalCovid-19 PandemicMajor disasterDR-4531-MN
Mar 13, 2020BiologicalCovid-19EmergencyEM-3453-MN
May 10, 2011FloodSevere Storms and FloodingMajor disasterDR-1982-MN
Jul 2, 2010TornadoSevere Storms, Tornadoes, and FloodingMajor disasterDR-1921-MN
Apr 9, 2009Severe StormSevere Storms and FloodingMajor disasterDR-1830-MN
Sep 13, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3242-MN
May 16, 2001FloodSevere Winter Storms, Flooding, and TornadoesMajor disasterDR-1370-MN
Apr 8, 1997FloodSevere Flooding, High Winds,Severe StormsMajor disasterDR-1175-MN
Jan 16, 1997Severe StormSevere Winter StormsMajor disasterDR-1158-MN
Aug 18, 1995Severe StormSevere Thunderstorms, Winds, Flooding, Tornadoes, and HeatMajor disasterDR-1064-MN
Jun 11, 1993Severe StormSevere Storms, Tornadoes & FloodingMajor disasterDR-993-MN
Jun 17, 1976DroughtDroughtEmergencyEM-3013-MN
Jul 17, 1975Severe StormSevere Storms, Tornadoes & FloodingMajor disasterDR-476-MN
Aug 1, 1972FloodSevere Storms & FloodingMajor disasterDR-347-MN
Apr 18, 1969FloodFloodingMajor disasterDR-255-MN
Mar 22, 1966FloodFloodingMajor disasterDR-215-MN
Apr 11, 1965FloodFloodingMajor disasterDR-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.

Ranks
Tornadoes since 1950891 / 8788 / 3,143
Tornadoes rated F3/EF3 or stronger47 / 87387 / 3,143
Tropical cyclones within 50 mi0——
Hurricane-strength passes within 50 mi0——
Wildfire acres since 19842,45624 / 871,128 / 3,143
Flood insurance claims10924 / 871,250 / 3,143
Flood insurance paid$1.4 million23 / 871,329 / 3,143
Disaster declarations1741 / 872,018 / 3,143
Flood events since 19965520 / 871,299 / 3,143
Hail and wind events since 19968143 / 87114 / 3,143
Winter storm events since 19962664 / 87209 / 3,143
Reported damage since 1996$28.1 million31 / 871,207 / 3,143
River crests at major flood stage0——
High tide flooding days a year, last 10 years0.0——
Months in severe drought since 189514353 / 871,106 / 3,143
Medium or heavy smoke days a year, last 10 years34.810 / 8734 / 3,143
Earthquakes M4+ within 50 mi since 190031 / 87949 / 3,143
Earthquakes M2.5+ in the county since 19730——

Neighbouring counties

Neighbouring counties
Becker County35012,21692
Clay County4302,3251,358
Douglas County260016
Grant County3301,0153
Todd County270013
Wadena County2302,7107
Wilkin County3503,014495

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.