Burke County

Population 2,132 (2025) 1,104 sq mi

Large wildfires have burned 46,570 acres of Burke County since 1984, 4th most of 53 counties in North Dakota; the largest was the Wilderness Fire in 1986.

Hazard fingerprint for Burke County Tornado: 32th percentile. Tropical: 0th percentile. Wildfire: 68th percentile. Flood: 2th percentile. Hail & wind: 16th percentile. Heat: 4th percentile. Cold: 86th percentile. Winter: 66th 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 195027
  • Wildfire burn scars since 198429

At a glance

The record for Burke County in eight numbers. Each links to its section below.

Acres burned since 1984

46,570

4th of 53 in North Dakota

29 large fires; the largest was Wilderness, 1986

Details

Tornadoes since 1950

27

27th of 53 in North Dakota

About as many as the typical North Dakota county

Details

Flood insurance claims

3

41st of 53 in North Dakota

$4,585 paid since 1979

Details

Strongest tornado

EF3

August 12, 2010, 5.0 mile path

Federal disaster declarations

22

Most recent: Severe Storms, Straight-Line Winds, and Tornadoes, 2026

Details

Record high

108°F

Reached 2 times, most recently August 9, 1958

Details

Record low

−42°F

February 18, 2025

Details

Snowiest season

73.5in

Winter of 2008-09

Tornadoes

About one every 2.8 years since 1950, one of them rated F3/EF3 or stronger.

Strongest

August 12, 2010

EF3, 5.0 mile path

400 yards wide; 1 killed along the whole path.

Most recent

Thursday, August 12, 2010

EF3, 5.0 mile path

16 years ago.

Tornadoes by decade Doppler radar era² 1950s: 0 1960s: 2 2 1970s: 3 3 1980s: 2 2 1990s: 6 6 2000s: 9 9 2010s: 5 5 2020s: 0 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 0 A: 0 M: 0 J: 4 J: 16 16 A: 6 S: 1 O: 0 N: 0 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes in Burke County since 1950
Aug 12, 2010EF35.040011
Aug 12, 2010EF00.12000
Aug 12, 2010EF00.12000
Jul 26, 2010EF00.82500
Jun 17, 2010EF03.52500
Jul 8, 2009EF01.84000
Jul 8, 2009EF00.84000
Jul 8, 2009EF19.78000
Jul 15, 2004F01.02000
Jul 26, 2001F00.04000
Jul 20, 2001F00.04000
Jul 19, 2001F110.010000
Jul 19, 2001F00.05000
Aug 7, 2000F06.03000
Jul 5, 1998F09.03000
Jul 5, 1998F04.03000
Jun 26, 1998F00.13000
Sep 4, 1996F00.52000
Jul 30, 1995F00.11000
Jun 23, 1994F00.11000
Jul 30, 1984F10.15000
Jul 14, 1982F00.41000
Jun 9, 1978F00.11000
Jul 13, 1977F00.11000
Jul 10, 1977F00.11000
Aug 5, 1969F20.55000
Aug 5, 1969F10.11000
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Burke County: 0.
  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

46,570 acres burned in 29 large fires since 1984, equal to 6.6% of the land.

Largest

July 31, 1986

Wilderness Fire, 5,613 acres

5,614 acres inside Burke County.

Most recent

May 9, 2009

North Elbow Lake N 1 2 Fire

1,148 acres in total.

Acres burned since 1984, cumulative 1985: 1,0121986: 8,3921987: 2,4811990: 2,9201992: 4,8171993: 1,8031995: 2,3431996: 2,7901997: 6,7351998: 1,1602001: 3,7762003: 2,8022004: 1,0332006: 2,1642007: 1,1962009: 1,148 46,570 acres 198519901995200020052010201520202025
Running total of acres burned inside the county (line) and each year’s acres (bars).

Every large fire

Large wildfires since 1984
North Elbow Lake N 1 220091,1471,148
South Central Core20071,1961,197
Hb 3520062,1632,162
Windmill20041,0331,034
Kruse20031,5081,509
Aspen20031,2931,293
Sc Core20011,1731,173
Hb 3520011,4421,442
Unnamed20011,1601,160
N Elbow Lake19981,1591,158
Wilderness19975,5555,558
Hb 3519971,1791,178
Aspen19961,2731,273
Kruses19961,5161,515
N Elbow Lake19951,1681,167
S Central C19951,1751,177
Kruses19931,8021,801
Aspen19921,3271,328
N Elbow L19921,1921,191
Thomp Lake19921,0851,084
Teal Slough19921,2111,210
Aspen19901,3011,301
Kruses19901,6181,616
Teal19871,4671,467
Tinjum19871,0131,014
N Elbow19861,1621,162
Wilderness19865,6145,613
Kruses19861,6141,615
12 And 1419851,0111,013
  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: 76 days

Heavy smoke on 37 days in 2021, the most of any year.

Last 10 years

36.2 days a year

Medium or heavy smoke, 2016 to 2025.

2025

36 days

Medium or heavy smoke. 40 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 5 2012: 22 2013: 10 2014: 19 2015: 32 2016: 11 2017: 30 2018: 29 2019: 17 2020: 20 2021: 61 2022: 25 2023: 76 76 2024: 57 2025: 36 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

3 federal flood insurance claims since 1979, with $4,585 paid.

Federal flood insurance claims by year
Claims per year since 1979. Years with fewer than five claims are not shown.

Flood events since 1996

  • Flood2
  • Flash Flood1

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 119 of 1,581 months since 1895 (8%); the longest spell lasted 14 months.

119

Months in severe drought or worse since 1895

45

Months in extreme drought

8%

Share of all months, severe or worse

21

Drought reports to the Weather Service since 1996

Lowest reading

September 1958

−6.24, extreme drought

Longest severe spell

14 months

May 1934 to June 1935.

Latest month

September 2026

−0.85, incipient dry spell

Last severe month: March 2022.

Months in severe drought or worse, by year 1895: 0 1896: 0 1897: 0 1898: 2 1899: 0 1900: 3 1901: 0 1902: 0 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 0 1909: 0 1910: 0 1911: 0 1912: 0 1913: 0 1914: 0 1915: 2 1916: 0 1917: 0 1918: 0 1919: 0 1920: 0 1921: 0 1922: 0 1923: 0 1924: 0 1925: 0 1926: 0 1927: 0 1928: 0 1929: 0 1930: 1 1931: 8 1932: 3 1933: 0 1934: 8 1935: 6 1936: 6 1937: 8 1938: 0 1939: 0 1940: 0 1941: 0 1942: 0 1943: 0 1944: 0 1945: 0 1946: 0 1947: 0 1948: 0 1949: 0 1950: 0 1951: 0 1952: 6 1953: 2 1954: 0 1955: 0 1956: 0 1957: 0 1958: 8 1959: 3 1960: 0 1961: 7 1962: 4 1963: 0 1964: 0 1965: 0 1966: 0 1967: 2 1968: 0 1969: 0 1970: 0 1971: 0 1972: 0 1973: 0 1974: 0 1975: 0 1976: 0 1977: 5 1978: 0 1979: 0 1980: 5 1981: 1 1982: 0 1983: 0 1984: 1 1985: 0 1986: 0 1987: 0 1988: 9 9 1989: 6 1990: 6 1991: 2 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: 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: 4 2022: 1 2023: 0 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

1 earthquake of magnitude 2.5 or more within 50 miles since 2012; none reached magnitude 4.

0

Magnitude 2.5+ inside the county since 1973

1

Magnitude 3+ within 50 miles since 1973

0

Magnitude 4+ within 50 miles since 1900

0

Magnitude 5+ within 50 miles since 1900

Largest within 50 miles

September 28, 2012

Magnitude 3.3

22 km ESE of Williston, North Dakota; 40.5 miles away, 3.1 miles deep.

Most recent, magnitude 3 or more

September 28, 2012

Magnitude 3.3

22 km ESE of Williston, North Dakota; 40.5 miles away.

  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

87

Landslides mapped, probable or better

0

With a recorded date

1

Source inventory

Mapped by ND GS (87).

  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

419 events in the National Weather Service record, 363 of them since 1996.

86

Hail reports, 1 inch or larger

7

Hail, 2 inches or larger

44

Damaging gusts, 58 mph+

95

Winter weather events since 1996

1

Heat events since 1996

37

Cold events since 1996

Largest hail

July 19, 2001

2.75 inches

Strongest measured or estimated gust

July 15, 2012

90 mph

More event types since 1996

Other Storm Events types since 1996
Lightning900Aug 9, 2006
Dust storms and dust devils100May 14, 2026
Dense fog and smoke200May 17, 2023

Costliest events since 1996

  1. Apr 23, 2022Blizzard, Burke$6.0 million
    National Weather Service narrative

    Strong winds and heavy snow combined to produce a blizzard. In addition, periods of freezing rain occurred which accreted on power lines. This, combined with strong winds, led to extensive damage to power lines, cross arms, and poles, and thus widespread power outages.

  2. Jan 9, 1997Blizzard, Burke$1.5 million
    National Weather Service narrative

    The second blizzard in less than 1 week brought North Dakota to a virtual standstill. This blizzard didn't bring as much snow as the first storm, but the winds gusted from the northwest as high at 40 mph and they lasted for 3 days. Snowfall amounts from this storm varied from 1-2 inches in the southwest to 2-4 inches in the central. But the strong winds combined with this snow as well as the snow from the blizzard a few days earlier created widespread whiteout conditions that lasted for 3 days. There were numerous communities that halted mail delivery and cancelled school. In Emmons Co. every road was blocked by drifts, some as high as 18 feet. In McLean Co. there was a drift at…

  3. Jan 15, 2023Dense Fog, Burke$750,000
    National Weather Service narrative

    Multiple locations lost power as a result of frost accumulating on power lines due to the multi-day dense fog event, with some locations losing power for more than a day. Multiple lines were downed as conductors broke, or snapped. Approximately 30 poles and multiple cross-arms were broken due to the additional weight of the frost on power lines. 26 additional workers were brought in by the local electrical co-op to assist with the damage.

  4. Aug 12, 2010Tornado$700,000
    National Weather Service narrative

    This tornado crossed from Burke County into Ward County. Note that for roughly three miles in the vicinity of the Des Lacs River, U.S. Highway 52 runs right on the Burke and Ward County line. The tornado was right on the highway in this area. This was the location of the worst damage with this tornado. Farm property on the north side of the highway, Burke County, and on the south side of the highway, Ward County, was impacted. One fatality and one injury occurred here, in a single automobile travelling along the highway, on the county line. The vehicle came to rest in a field, nearly 200 yards off the highway, on the south side of the highway, on the east side of the river, in…

  5. Jun 14, 2018Hail$500,000
    National Weather Service narrative

    There was extensive damage in Portal, including to a fire truck.

  6. Jun 24, 2010Thunderstorm Wind$500,000
    National Weather Service narrative

    Intense straight line thunderstorm winds resulted in a workover oil rig to blow over, causing substantial damage to the rig.

  7. Apr 30, 2011Blizzard, Burke$500,000
    National Weather Service narrative

    Up to seven inches of heavy wet snow combined with winds gusting to near 70 mph to result in widespread blizzard conditions. Travel was impossible due to many roads blocked by snow, along with icy road conditions which resulted from a period of freezing rain which preceeded the snow. Numerous trees and power lines were knocked down, leading to a prolonged period of power outages across the county. One of the adverse effects caused by the storm and disruption in power included calve losses.

  8. Aug 9, 2006Lightning$250,000
    National Weather Service narrative

    Lightning struck two salt water tanks at oil wells. One oil well 2 miles southeast of Lignite was struck at 715 AM CST, while another 2 miles northwest of Lignite was struck at 830 AM CST. Both strikes started fires, with fire crews unable to get close to the fires due to the intense heat. Loss in production was estimated at 15K per day. The 250K damage was to property.

  9. Jul 8, 2009Tornado$185,000
    National Weather Service narrative

    A tornado was reported west of Portal near the Canadian border where it blew out the windows of two vehicles and blew the vehicles into the ditch. The tornado continued east-southeast towards the southern side of the town of Portal, uprooting 12 inch in diameter trees, snapping several power poles, and destroying an old oak barn. The tornado then continued east of Portal, uprooting several more large trees, downing more power lines, and destroying a granary, before dissipating. The damage corresponded to low end EF1 on the Enhanced Fujita Tornado Scale. From that it was determined that wind speeds were around 90 mph. No injuries and no deaths were reported.

  10. Jun 24, 2010Hail$100,000
    National Weather Service narrative

    Hail up to the size of tennis balls lasted around 30 minutes and covered the ground. The large hail was accompanied with strong winds, and resulted in broken windows, damage to vehicles, and damage to siding and shingles.

  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

From Kenmare 1 Wsw, 21.1 miles from the county’s population centre, with records from 1933.

All-time high
108°F2 times, most recently Aug 9, 1958
All-time low
−42°FFeb 18, 2025
Warmest night
76°FAug 2, 1989
Coldest day
−26°FFeb 3, 1989
Wettest day
4.20 inJun 11, 2021
Snowiest day
28.0 inApr 13, 2022
Hottest year
1987mean 45.0°F
Coldest year
1951mean 34.2°F
Wettest year
199825.34 in
Driest year
19346.36 in
Snowiest season
73.5 in2008-09
Average monthly high and low temperature and precipitation, last 30 years, Kenmare 1 Wsw 32°F 20° 1° 0.8 Jan 23° 4° 0.7 Feb 35° 14° 0.9 Mar 52° 27° 1.2 Apr 66° 41° 2.7 May 75° 52° 3.1 Jun 81° 56° 2.8 Jul 80° 53° 1.8 Aug 71° 45° 1.7 Sep 53° 31° 1.2 Oct 37° 18° 0.7 Nov 23° 5° 0.8 Dec Precipitation, inches
Average daily high and low by month, and average monthly precipitation, over the last 30 years.
Nights at or below freezing per year 1977: 195 1979: 221 221 1980: 196 1981: 191 1982: 193 1983: 195 1985: 184 1986: 195 1987: 165 1988: 190 1989: 186 1990: 192 2009: 192 2010: 185 2011: 196 2013: 204 2015: 147 2016: 180 2017: 186 2020: 207 2021: 186 2022: 180 2023: 192 2024: 183 2025: 178 197719892021
Nights at or below freezing each complete year, last 50 years. Thirty-year average: 185.8.
Snowfall by winter 1971: 44.8 in 1972: 18.0 in 1974: 41.5 in 1976: 18.0 in 1978: 46.9 in 1979: 47.6 in 1980: 27.0 in 1981: 50.7 in 1983: 25.3 in 1984: 22.0 in 1985: 53.8 in 1986: 32.9 in 1987: 18.1 in 1990: 35.9 in 1998: 73.1 in 2000: 36.4 in 2002: 58.8 in 2008: 73.5 in 73.5 2009: 47.8 in 2020: 31.5 in 19711985
Total snowfall each winter (July to June), last 50 winters.

Median first snow

October 29

Earliest: September 24, 1984

Median last snow

April 12

Latest: May 12, 1970

0 of 24 winters had no measurable snow.

Station Kenmare 1 Wsw (USC00324646), 1,810 ft elevation, 21.1 miles from the population centre. Daily records from 1933 to September 30, 2026; 88.4% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.

NOAA NCEI Global Historical Climatology Network Daily.

Federal disaster declarations

22 since 1953. The most recent: Severe Storms, Straight-Line Winds, and Tornadoes, September 1, 2026.

Federal disaster declarations
Sep 1, 2026Severe StormSevere Storms, Straight-Line Winds, and TornadoesMajor disasterDR-4934-ND
Jul 5, 2023FloodFloodingMajor disasterDR-4717-ND
Jul 13, 2022Severe StormSevere Winter Storm and FloodingMajor disasterDR-4660-ND
Sep 1, 2021Severe StormSevere Storm, Straight-Line Winds, and FloodingMajor disasterDR-4613-ND
Apr 1, 2020BiologicalCovid-19 PandemicMajor disasterDR-4509-ND
Mar 13, 2020BiologicalCovid-19EmergencyEM-3477-ND
May 20, 2011Severe StormSevere Winter StormMajor disasterDR-1986-ND
May 10, 2011FloodFloodingMajor disasterDR-1981-ND
Feb 26, 2010Severe StormSevere Winter StormMajor disasterDR-1879-ND
Nov 21, 2005SnowstormSevere Winter Storm and Record and/Or Near Record SnowMajor disasterDR-1616-ND
Sep 13, 2005Coastal StormHurricane Katrina EvacuationEmergencyEM-3247-ND
May 5, 2004Severe StormSevere Storms, Flooding, and Ground SaturationMajor disasterDR-1515-ND
Apr 2, 2004SnowstormSnowEmergencyEM-3196-ND
Jun 27, 2000Severe StormSevere Storms, Flooding and Ground SaturationMajor disasterDR-1334-ND
Jun 8, 1999FloodSevere Storms, Flooding, Snow, Ice, Ground Saturation, Lanslides, Mudslides, and TorMajor disasterDR-1279-ND
Apr 7, 1997FloodSevere Flooding,Severe Winter Storms, Snowmelt, Spring RainsMajor disasterDR-1174-ND
Jan 12, 1997Severe StormSevere Winter Storms and Blizzard ConditionsMajor disasterDR-1157-ND
Jul 26, 1993FloodSevere Storms & FloodingMajor disasterDR-1001-ND
Apr 26, 1979FloodSevere Storms, Snowmelt & FloodingMajor disasterDR-581-ND
Apr 16, 1976FloodFloodingMajor disasterDR-501-ND
Jun 5, 1970FloodSevere Storms & FloodingMajor disasterDR-287-ND
Apr 18, 1969FloodFloodingMajor disasterDR-256-ND

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 Burke County stands among 53 counties in North Dakota and 3,143 in the United States.

Ranks
Tornadoes since 19502727 / 531,140 / 3,143
Tornadoes rated F3/EF3 or stronger116 / 531,281 / 3,143
Tropical cyclones within 50 mi0——
Hurricane-strength passes within 50 mi0——
Wildfire acres since 198446,5704 / 53473 / 3,143
Flood insurance claims341 / 532,656 / 3,143
Flood insurance paid$4,58544 / 532,774 / 3,143
Disaster declarations2238 / 531,187 / 3,143
Flood events since 1996350 / 533,081 / 3,143
Hail and wind events since 199618246 / 532,113 / 3,143
Winter storm events since 19969543 / 531,028 / 3,143
Reported damage since 1996$12.0 million41 / 531,835 / 3,143
River crests at major flood stage0——
High tide flooding days a year, last 10 years0.0——
Months in severe drought since 189511938 / 531,773 / 3,143
Medium or heavy smoke days a year, last 10 years36.212 / 5316 / 3,143
Earthquakes M4+ within 50 mi since 19000——
Earthquakes M2.5+ in the county since 19730——

Neighbouring counties

Neighbouring counties
Divide County12000
Mountrail County3107,3834
Renville County250033
Ward County5501,1871,107
Williams County26070,42919

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, station USC00324646.
  • 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.