Steamboat Springs

Population 13,557 (2025)

4 tornadoes have tracked within 25 miles of Steamboat Springs since 1950, 0 of them rated EF3 or F3 or stronger; the most recent was on June 24, 2018.

Hazard fingerprint for Steamboat Springs Tornado: 3th percentile. Tropical: 0th percentile. Wildfire: 62th percentile. Flood: 12th percentile. Hail & wind: 7th percentile. Heat: 0th percentile. Cold: 99th percentile. Winter: 100th 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 within 25 miles since 19504
  • Wildfire burn scars within 25 miles since 19849

At a glance

Tornado paths within 25 miles, tropical cyclone tracks within 100 miles and wildfire perimeters within 25 miles of the city centre. Storm events, flood insurance claims and disaster declarations are for Routt County. Earthquakes within 50 miles, volcanoes within 100 miles and smoke days are measured from the city centre; river and tide gauges, tsunami and landslide records and the drought index are for Routt County.

Large wildfires within 25 mi

9

Largest: Middle Fork, 2020

Details

Flood insurance claims

36

Routt County

$415,000 paid since 1978

Details

Tornadoes since 1950, within 25 mi

4

0 rated F3/EF3 or stronger

Details

Strongest tornado

F1

May 30, 1980, 0.5 mile path

Federal disaster declarations

6

Most recent: Covid-19 Pandemic, 2020

Details

Record high

100°F

June 29, 1990

Details

Record low

−54°F

January 7, 1913

Details

Snowiest season

266.8in

Winter of 1973-74

Tornadoes

About one every 19 years since 1950, none rated F3/EF3 or stronger.

Strongest

May 30, 1980

F1, 0.5 mile path

40 yards wide.

Most recent

Sunday, June 24, 2018

EF0, 0.0 mile path

8 years ago.

Tornadoes by decade, within 25 miles Doppler radar era² 1950s: 0 1960s: 0 1970s: 0 1980s: 1 1 1990s: 1 1 2000s: 0 2010s: 2 2 2020s: 0 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 0 A: 0 M: 1 J: 3 3 J: 0 A: 0 S: 0 O: 0 N: 0 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes within 25 miles since 1950
Jun 24, 2018EF00.05000
Jun 24, 2018EF00.33000
Jun 15, 1995F00.11000
May 30, 1980F10.54000
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond this area.
  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

9 large fires burned within 25 miles since 1984.

Largest

September 6, 2020

Middle Fork Fire, 20,878 acres

7.9 miles from the city centre.

Most recent

July 9, 2021

Morgan Creek Fire

7,713 acres in total.

Acres burned by large fires within 25 miles, cumulative 2001: 1,4362002: 37,4402013: 1,0362018: 20,7182020: 20,8782021: 12,081 93,589 acres 198519901995200020052010201520202025
Running total of acres burned (line) and each year’s acres (bars).

Every large fire

Large wildfires since 1984
Morgan Creek202115.17,713
Muddy Slide202122.24,368
Middle Fork20207.920,878
Silver Creek201816.120,718
Cog201323.01,036
Mt. Zirkel Complex (Burn Ridge)200214.615,474
Green Creek200212.84,342
Mt. Zirkel Complex (Hinman)200220.617,624
Mad Creek200112.51,436
  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

2021: 45 days

Heavy smoke on 17 days in 2021, the most of any year.

Last 10 years

14.5 days a year

Medium or heavy smoke, 2016 to 2025.

2025

18 days

Medium or heavy smoke. 24 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 2 2012: 14 2013: 3 2014: 0 2015: 1 2016: 4 2017: 7 2018: 12 2019: 2 2020: 28 2021: 45 45 2022: 9 2023: 8 2024: 12 2025: 18 201120122013201420152016201720182019202020212022202320242025
Days each year on which a satellite-traced plume of medium or heavy smoke covered the city 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

36 federal flood insurance claims since 1978, with $415,000 paid.

Flood insurance figures are for Routt County, the county that contains Steamboat Springs.

Federal flood insurance claims by year 1984: 6 2011: 11 11 1984
Claims per year since 1978. Years with fewer than five claims are not shown.

Most claims in one year

2011: 11 claims

$311,000 paid.

2nd most

1984: 6 claims

$4,297 paid.

Claims by ZIP code

Flood insurance claims by ZIP code
8048725$320,000
804777$94,000

Flood events since 1996

  • Flood25
  • Heavy Rain10
  • 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.

River crests

River gauges in Routt County, the county that contains Steamboat Springs.

Most severe crest

June 21, 2019

Elk River near Milner, 8.08 ft

0.58 feet above the 7.5 ft flood stage; minor flooding by today’s categories.

Highest river crests above flood stage
Jun 21, 2019Elk River near Milner8.08+0.58Minor
Jun 8, 2010Elk River near Milner7.95+0.45Minor
Jun 3, 2011Elkhead Creek near Hayden8.36+0.36Minor
May 16, 2023Elk River near Milner7.78+0.28Minor
May 22, 2008Elk River near Milner7.77+0.27Minor
May 30, 2014Elk River near Milner7.65+0.15Minor
May 4, 2023Elkhead Creek near Hayden7.96−0.04Action
May 20, 2008Elkhead Creek near Hayden7.90−0.10Action
May 21, 2009Elk River near Milner7.39−0.11Action
May 20, 2010Elkhead Creek near Hayden7.80−0.20Action
May 24, 2005Elk River near Milner7.26−0.24Action
May 23, 2006Elk River near Milner7.21−0.29Action
May 19, 2022Elk River near Milner7.15−0.35Action
Jun 6, 2024Elk River near Milner7.14−0.36Action
Jun 7, 2011Yampa River at Steamboat Springs7.08−0.42Action
May 7, 2009Elkhead Creek near Hayden7.56−0.44Action
Jun 11, 2016Elk River near Milner7.02−0.48Action
May 2, 2020Elkhead Creek near Hayden7.45−0.55Action
Jun 6, 2011Little Snake River near Slater8.87−0.63Action
May 16, 2016Elkhead Creek near Hayden7.32−0.68Action
Jun 23, 2019Yampa River below Stagecoach Reservoir4.77−3.03Action
May 11, 2015Yampa River below Stagecoach Reservoir4.34−3.46Action
Jun 11, 2017Elk River near Milner6.95−0.55Below flood stage
May 29, 2014Yampa River at Steamboat Springs6.87−0.63Below flood stage
Jun 2, 2020Elk River near Milner6.84−0.66Below flood stage

River gauges

River gauges and their highest listed crests
Elk River near Milner7.58.08 ftJun 21, 20190
Elkhead Creek near Hayden8.08.36 ftJun 3, 20110
Little Snake River near Slater9.58.87 ftJun 6, 20110
Yampa River above Stagecoach Reservoir8.04.91 ftApr 24, 20080
Yampa River at Steamboat Springs7.57.08 ftJun 7, 20110
Yampa River below Stagecoach Reservoir7.84.77 ftJun 23, 20190
  1. Crests are the highest and the recent crests the National Weather Service lists for each river gauge in the county that has a flood stage, not every flood. Flood categories use each gauge's current flood stages; crests from before levees, dams or channel changes may not be comparable. Crests measured on an old datum are left out of the rankings.

NOAA National Water Prediction Service gauge records, retrieved October 30, 2026.

Drought

In severe drought or worse for 172 of 1,581 months since 1895 (11%); the longest spell lasted 20 months.

The drought index is for Routt County, the county that contains Steamboat Springs.

172

Months in severe drought or worse since 1895

88

Months in extreme drought

11%

Share of all months, severe or worse

374

Drought reports to the Weather Service since 1996

Lowest reading

February 1901

−6.32, extreme drought

Longest severe spell

20 months

August 2020 to March 2022.

Latest month

September 2026

−3.39, severe drought

Months in severe drought or worse, by year 1895: 0 1896: 0 1897: 0 1898: 0 1899: 0 1900: 4 1901: 10 1902: 12 12 1903: 1 1904: 2 1905: 1 1906: 0 1907: 0 1908: 0 1909: 0 1910: 2 1911: 0 1912: 0 1913: 0 1914: 0 1915: 0 1916: 0 1917: 0 1918: 0 1919: 5 1920: 0 1921: 0 1922: 0 1923: 0 1924: 0 1925: 0 1926: 0 1927: 0 1928: 0 1929: 0 1930: 0 1931: 0 1932: 0 1933: 1 1934: 12 1935: 3 1936: 2 1937: 1 1938: 0 1939: 3 1940: 6 1941: 2 1942: 0 1943: 0 1944: 3 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: 3 1959: 1 1960: 0 1961: 2 1962: 2 1963: 9 1964: 2 1965: 0 1966: 0 1967: 0 1968: 0 1969: 0 1970: 0 1971: 0 1972: 0 1973: 0 1974: 0 1975: 0 1976: 0 1977: 6 1978: 0 1979: 0 1980: 0 1981: 4 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 0 1988: 0 1989: 0 1990: 0 1991: 0 1992: 0 1993: 0 1994: 3 1995: 0 1996: 0 1997: 0 1998: 0 1999: 0 2000: 0 2001: 6 2002: 12 2003: 1 2004: 0 2005: 0 2006: 0 2007: 0 2008: 0 2009: 0 2010: 0 2011: 0 2012: 8 2013: 4 2014: 0 2015: 0 2016: 0 2017: 1 2018: 5 2019: 0 2020: 5 2021: 12 2022: 3 2023: 0 2024: 0 2025: 4 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, volcanoes and landslides

1 earthquake of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 4.3 in 2002.

11

Magnitude 3+ within 50 miles since 1973

1

Magnitude 4+ within 50 miles since 1900

0

Magnitude 5+ within 50 miles since 1900

Largest within 50 miles

January 31, 2002

Magnitude 4.3

28 km SSW of Craig, Colorado; 47.6 miles away, 3.1 miles deep.

Most recent, magnitude 3 or more

September 2, 2024

Magnitude 3.1

21 km NW of Steamboat Springs, Colorado; 14.1 miles away.

Earthquakes of magnitude 3 or more within 50 miles, by year 1973: 0 1974: 1 1975: 0 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: 0 1994: 0 1995: 0 1996: 0 1997: 0 1998: 0 1999: 0 2000: 1 2001: 0 2002: 1 2003: 0 2004: 0 2005: 1 2006: 0 2007: 0 2008: 0 2009: 2 2 2010: 0 2011: 2 2012: 0 2013: 0 2014: 1 2015: 1 2016: 0 2017: 0 2018: 0 2019: 0 2020: 0 2021: 0 2022: 0 2023: 0 2024: 1 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
Jan 31, 20024.347.63.128 km SSW of Craig, Colorado
  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 city centre.
  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.

Volcanoes within 100 miles

Volcanoes within 100 miles
Dotsero Volcanic Center57.2Moderate7,316
  1. U.S. volcanoes within 100 miles, from the USGS Volcano Hazards Program. The threat category is the USGS 2018 National Volcanic Threat Assessment, which ranks volcanoes by how hazardous their past eruptions were and how many people and how much infrastructure lie near them. It is not a forecast of eruption.

USGS Volcano Hazards Program, retrieved October 30, 2026.

Mapped landslides

Landslides mapped in Routt County.

1,115

Landslides mapped, probable or better

4

With a recorded date

3

Source inventories

Mapped by CO GS (1,105), USGS Conterminous (6), NASA (4).

  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

2,363 events in the National Weather Service record for Routt County, 2,354 of them since 1996.

10

Hail reports, 1 inch or larger

1

Hail, 2 inches or larger

24

Damaging gusts, 58 mph+

1,529

Winter weather events since 1996

0

Heat events since 1996

116

Cold events since 1996

Largest hail

June 24, 2005

2.75 inches

Strongest measured or estimated gust

September 19, 1997

86 mph

More event types since 1996

Other Storm Events types since 1996
Lightning200Jun 3, 2009
Dense fog and smoke8500May 31, 2026
Debris flows500May 1, 2023
Avalanches831Feb 22, 2026

Costliest events since 1996

  1. Jul 16, 2023Wildfire, Central Yampa River Basin$300,000
    National Weather Service narrative

    The Howard Fire started in mid July from a lightning strike near Meeker, and grew to 255 acres before it was contained at the end of the month.

  2. Oct 1, 2023Wildfire, Central Yampa River Basin$250,000
    National Weather Service narrative

    The Iron Fire started in late September from unknown causes 18 miles northwest of Craig. The fire grew to 7,392 acres before it was contained in early October.

  3. Aug 1, 2021Wildfire, Elkhead And Park Mountains$250,000
    National Weather Service narrative

    The Muddy Slide Fire was started by lightning 20 miles south of Steamboat Springs in mid June. The fire quickly spread and grew to 4,093 acres before finally being contained in mid September.

  4. Sep 29, 2023Wildfire, Central Yampa River Basin$250,000
    National Weather Service narrative

    The Iron Fire started in late September from unknown causes 18 miles northwest of Craig. The fire grew to 7,392 acres before it was contained in early October.

  5. Apr 8, 2005Strong Wind, Central Yampa River Basin$200,000
    National Weather Service narrative

    Strong gradient winds produced widespread damage in eastern Moffat County. A 60 foot communications tower was blown down and microwave dishes and antennas were blown off other communications towers. Utility poles and trees were blown down, and large tree limbs were snapped off. Electric power was knocked out for a few hours in many areas, and even longer in a some isolated locations. Several campers and trailers were rolled over, and several sheds were blown over. Shingles were blown off roofs. Many unsecured items blew away and were not found.

  6. Jun 1, 1997Flood, Upper Yampa River Basin/Steamboat Springs And Vicinity$100,000
    National Weather Service narrative

    Flooding was reported from Steamboat Springs to Craig along the upper and central portions of the Yampa River for the first eleven days of June. The Elk River and other tributaries were also above flood stage for much of the same time period. Many roads, campgrounds, and ranch lands were inundated. Water was several feet deep in these lower lying areas. Roads were undermined and a few small bridges collapsed. Many houses and trailers were damaged from the flood waters.

  7. Apr 8, 2020Wildfire, Central Yampa River Basin$80,000
    National Weather Service narrative

    The Lion Fire began on April 7th from unknown causes in Lion's Canyon, or approximately 3 miles west of Meeker. It grew to 229 acres before it was contained at the end of the following day. An unoccupied mobile home was destroyed in the fire, along with several outbuildings and multiple vehicles.

  8. Mar 25, 1998Flood, Central Yampa River Basin/Craig-Hayden And Vicinity$60,000
    National Weather Service narrative

    Unseasonably warm temperatures rapidly melted a large amount of snow at the headwaters of Fortification Creek, resulting in flooding along the Creek. Nearly 80 residences were impacted by the flood, with some basements and garages flooded. Sections of County Road 17 and County Road 7 were washed out. A bridge was also washed out.

  9. Aug 16, 2011Hail$50,000
    National Weather Service narrative

    Hail up to the size of golf balls was reported in Oak Creek.

  10. Sep 20, 1997Hail$50,000
    National Weather Service narrative

    Wind driven hail up to three-quarters of an inch in diameter decimated fields of ripening wheat as well as gardens. The siding on the west exposure of some buildings in the area were dented and had paint chipped off.

  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 Steamboat Springs, 0.9 miles from the city centre, with records from 1893.

All-time high
100°FJun 29, 1990
All-time low
−54°FJan 7, 1913
Warmest night
71°FAug 12, 1913
Coldest day
−11°F3 times, most recently Dec 22, 1990
Wettest day
2.57 inJun 14, 1921
Snowiest day
30.0 in2 times, most recently Jan 28, 2023
Hottest year
2025mean 43.5°F
Coldest year
1924mean 34.8°F
Wettest year
195735.14 in
Driest year
193415.84 in
Snowiest season
266.8 in1973-74
Average monthly high and low temperature and precipitation, last 30 years, Steamboat Springs 32°F 29° 4° 2.3 Jan 34° 7° 2.0 Feb 44° 16° 1.5 Mar 54° 25° 2.1 Apr 65° 33° 2.2 May 76° 39° 1.5 Jun 84° 46° 1.7 Jul 82° 44° 1.8 Aug 74° 36° 2.2 Sep 60° 26° 2.0 Oct 44° 17° 1.7 Nov 31° 6° 2.1 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 1976: 247 1977: 242 1978: 263 1979: 260 1980: 266 266 1981: 226 1982: 247 1983: 241 1984: 237 1985: 244 1988: 227 1991: 242 1994: 218 1995: 230 1996: 228 1997: 213 1998: 235 1999: 245 2000: 220 2001: 224 2002: 205 2003: 212 2005: 231 2006: 224 2007: 223 2008: 249 2009: 219 2010: 235 2011: 229 2012: 242 2013: 232 2014: 228 2015: 218 2016: 228 2017: 231 2018: 211 2019: 236 2020: 231 2021: 221 2022: 240 2023: 218 2024: 218 2025: 216 19761988200220132023
Nights at or below freezing each complete year, last 50 years. Thirty-year average: 226.3.
Snowfall by winter 1976: 91.0 in 1977: 216.1 in 1978: 224.0 in 1979: 179.8 in 1980: 89.1 in 1981: 211.6 in 1982: 157.7 in 1983: 236.8 in 1984: 179.3 in 1985: 138.2 in 1987: 210.5 in 1988: 135.7 in 1989: 139.2 in 1990: 172.7 in 1992: 221.4 in 1994: 170.4 in 1995: 220.7 in 1996: 252.5 in 1997: 128.2 in 1998: 109.2 in 1999: 125.6 in 2000: 105.7 in 2004: 157.4 in 2005: 181.7 in 2006: 133.4 in 2007: 254.8 in 2008: 214.4 in 2009: 181.4 in 2017: 120.2 in 2018: 232.8 in 2019: 211.5 in 2020: 138.5 in 2022: 266.3 in 266.3 2023: 215.4 in 2024: 165.6 in 2025: 80.6 in 1976198719992019
Total snowfall each winter (July to June), last 50 winters.

Median first snow

October 15

Earliest: September 2, 1961

Median last snow

May 7

Latest: June 23, 2019

0 of 105 winters had no measurable snow.

Station Steamboat Springs (USC00057936), 6,866 ft elevation, 0.9 miles from the city centre. Daily records from 1893 to October 27, 2026; 96.8% 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

6 since 1953. The most recent: Covid-19 Pandemic, March 28, 2020.

Declarations for Routt County.

Federal disaster declarations
Mar 28, 2020BiologicalCovid-19 PandemicMajor disasterDR-4498-CO
Mar 13, 2020BiologicalCovid-19EmergencyEM-3436-CO
Sep 5, 2005Coastal StormHurricane Katrina EvacuationEmergencyEM-3224-CO
Jun 19, 2002FireWildfiresMajor disasterDR-1421-CO
Jul 27, 1984FloodSevere Storms, Mudslides, Landslides & FloodingMajor disasterDR-719-CO
Jan 29, 1977DroughtDroughtEmergencyEM-3025-CO

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.

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 USC00057936.
  • 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.
  • Volcanoes USGS Volcano Hazards Program, U.S. volcanoes and 2018 threat assessment.
  • 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.