Collingsworth County

Population 2,487 (2025) 918 sq mi

Large wildfires have burned 62,636 acres of Collingsworth County since 1984, 46th most of 254 counties in Texas; the largest was the East Amarillo Complex Fire in 2006.

Hazard fingerprint for Collingsworth County Tornado: 62th percentile. Tropical: 0th percentile. Wildfire: 77th percentile. Flood: 11th percentile. Hail & wind: 37th percentile. Heat: 0th percentile. Cold: 59th percentile. Winter: 30th 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 195044
  • Wildfire burn scars since 19847

At a glance

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

Acres burned since 1984

62,636

46th of 254 in Texas

7 large fires; the largest was East Amarillo Complex, 2006

Details

Tornadoes since 1950

44

92nd of 254 in Texas

26% more than the typical Texas county

Details

Flood insurance claims

4

184th of 254 in Texas

$17,000 paid since 1993

Details

Strongest tornado

F4

May 25, 1955, 45.1 mile path

Largest earthquake within 50 mi

4.9magnitude

July 30, 1925, 45.5 miles away

Details

Federal disaster declarations

14

Most recent: Severe Winter Storms, 2021

Details

Record high

117°F

Reached 2 times, most recently August 3, 1944

Details

Record low

−11°F

January 18, 1930

Details

Tornadoes

About one every 1.7 years since 1950, 6 of them rated F3/EF3 or stronger.

Strongest

May 25, 1955

F4, 45.1 mile path

1,100 yards wide; 2 killed along the whole path.

Most recent

Tuesday, May 31, 2022

EF0, 2.4 mile path

4 years ago.

Tornadoes by decade Doppler radar era² 1950s: 3 3 1960s: 3 3 1970s: 9 9 1980s: 8 8 1990s: 8 8 2000s: 5 5 2010s: 6 6 2020s: 2 2 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 0 M: 2 A: 5 M: 21 21 J: 13 J: 0 A: 2 S: 0 O: 1 N: 0 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes in Collingsworth County since 1950
May 31, 2022EF02.418000
May 31, 2022EF01.812500
May 20, 2019EF00.35000
May 16, 2017EF02.32500
May 16, 2017EF00.32500
Mar 28, 2017EF03.15000
May 16, 2015EF122.510000
Apr 30, 2012EF01.315000
May 26, 2008EF00.02500
May 26, 2008EF00.12500
May 5, 2007EF17.020000
May 5, 2007EF02.810000
May 5, 2002F00.22500
Jun 11, 1997F19.010000
Jun 11, 1997F00.12300
Jun 11, 1997F00.55000
Jun 11, 1997F10.520000
May 7, 1993F01.010000
May 7, 1993F01.010000
Jun 19, 1992F00.11000
May 15, 1991F315.045000
Oct 1, 1986F00.23000
Jun 27, 1984F00.11000
Jun 27, 1984F00.11000
Jun 2, 1981F11.04000
Jun 1, 1981F25.75000
Jun 1, 1981F00.32000
May 29, 1980F216.216000
May 28, 1980F20.11000
Mar 18, 1979F113.350000
May 27, 1978F02.03000
May 16, 1977F312.150000
May 16, 1977F316.750000
Apr 7, 1976F00.11000
Apr 28, 1974F11.02000
Apr 10, 1974F12.01000
May 4, 1972F10.55000
Apr 29, 1972F111.188000
Aug 18, 1966F12.03300
Aug 18, 1966F01.02300
Jun 3, 1965F38.81000
Jun 17, 1955F316.26700
May 25, 1955F445.11,100182
Jun 5, 1953F00.11000
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Collingsworth 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

62,636 acres burned in 7 large fires since 1984, equal to 11% of the land.

Largest

March 12, 2006

East Amarillo Complex, 593,293 acres

25,260 acres inside Collingsworth County.

Most recent

May 3, 2018

Simmons Ranch Fire

2,303 acres in total.

Acres burned since 1984, cumulative 1996: 8,2372001: 13,3822006: 28,6182018: 12,399 62,636 acres 198519901995200020052010201520202025
Running total of acres burned inside the county (line) and each year’s acres (bars).

Every large fire

Large wildfires since 1984
Simmons Ranch20181,7652,303
Milliron201810,13220,425
Carbon201850112,136
Unnamed20063,3576,105
East Amarillo Complex200625,260593,293
Orear Complex Fire200113,38114,749
North Memphis19968,23712,544
  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: 32 days

Heavy smoke on 10 days in 2021, the most of any year.

Last 10 years

13.2 days a year

Medium or heavy smoke, 2016 to 2025.

2025

4 days

Medium or heavy smoke. 16 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 15 2012: 18 2013: 14 2014: 2 2015: 4 2016: 1 2017: 9 2018: 3 2019: 3 2020: 30 2021: 32 32 2022: 22 2023: 16 2024: 12 2025: 4 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

4 federal flood insurance claims since 1993, with $17,000 paid.

Federal flood insurance claims by year
Claims per year since 1993. Years with fewer than five claims are not shown.

Flood events since 1996

  • Flash Flood8
  • Heavy Rain3
  • Flood2

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

Most severe crest

April 3, 1997

Salt Fork of the Red River at Wellington, 19.55 ft

11.55 feet above the 8.0 ft flood stage; major flooding by today’s categories.

Most recent moderate or major crest

April 3, 1997

Salt Fork of the Red River at Wellington, 19.55 ft

Major flooding.

Highest river crests above flood stage
Apr 3, 1997Salt Fork of the Red River at Wellington19.55+11.55Major
May 16, 1957Salt Fork of the Red River at Wellington19.00+11.00Major
Jun 16, 1938Salt Fork of the Red River at Wellington17.50+9.50Major
May 23, 2015Salt Fork of the Red River at Wellington9.35+1.35Minor
Apr 26, 2025Salt Fork of the Red River at Wellington6.84−1.16Action
May 31, 2021Salt Fork of the Red River at Wellington6.28−1.72Action

River gauges

River gauges and their highest listed crests
Salt Fork of the Red River at Wellington8.019.55 ftApr 3, 19973
  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 117 of 1,581 months since 1895 (7%); the longest spell lasted 15 months.

117

Months in severe drought or worse since 1895

30

Months in extreme drought

7%

Share of all months, severe or worse

73

Drought reports to the Weather Service since 1996

Lowest reading

August 2011

−6.54, extreme drought

Longest severe spell

15 months

June 1970 to August 1971.

Latest month

September 2026

−5.25, extreme drought

Months in severe drought or worse, by year 1895: 0 1896: 0 1897: 0 1898: 0 1899: 0 1900: 0 1901: 0 1902: 0 1903: 0 1904: 2 1905: 0 1906: 0 1907: 0 1908: 0 1909: 3 1910: 3 1911: 1 1912: 0 1913: 0 1914: 0 1915: 0 1916: 0 1917: 1 1918: 1 1919: 0 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: 0 1934: 6 1935: 4 1936: 2 1937: 0 1938: 0 1939: 3 1940: 4 1941: 0 1942: 0 1943: 0 1944: 0 1945: 0 1946: 0 1947: 0 1948: 0 1949: 0 1950: 0 1951: 0 1952: 5 1953: 9 9 1954: 3 1955: 4 1956: 6 1957: 1 1958: 0 1959: 0 1960: 0 1961: 0 1962: 0 1963: 2 1964: 0 1965: 0 1966: 0 1967: 1 1968: 0 1969: 0 1970: 7 1971: 8 1972: 3 1973: 0 1974: 0 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: 1 1999: 0 2000: 0 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 2 2007: 0 2008: 0 2009: 0 2010: 0 2011: 8 2012: 4 2013: 0 2014: 0 2015: 0 2016: 0 2017: 0 2018: 3 2019: 0 2020: 0 2021: 0 2022: 9 2023: 4 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

2 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 4.9 in 1925.

1

Magnitude 2.5+ inside the county since 1973

11

Magnitude 3+ within 50 miles since 1973

2

Magnitude 4+ within 50 miles since 1900

0

Magnitude 5+ within 50 miles since 1900

Largest within 50 miles

July 30, 1925

Magnitude 4.9

Near Panhandle, Texas; 45.5 miles away.

Most recent, magnitude 3 or more

August 9, 2021

Magnitude 3.5

4 km N of Wheeler, Texas; 25.7 miles away.

Earthquakes of magnitude 3 or more within 50 miles, by year 1973: 0 1974: 0 1975: 0 1976: 0 1977: 0 1978: 0 1979: 2 2 1980: 1 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: 1 1997: 2 1998: 0 1999: 0 2000: 0 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 0 2007: 2 2008: 2 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: 1 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 19, 19364.415.83.114 km SSE of Lefors, Texas
Jul 30, 19254.945.5—Near Panhandle, Texas
  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.

Severe weather and other events

593 events in the National Weather Service record, 486 of them since 1996.

194

Hail reports, 1 inch or larger

37

Hail, 2 inches or larger

77

Damaging gusts, 58 mph+

42

Winter weather events since 1996

0

Heat events since 1996

13

Cold events since 1996

Largest hail

May 20, 2019

5.50 inches

Strongest measured or estimated gust

June 19, 2007

85 mph

More event types since 1996

Other Storm Events types since 1996
Dense fog and smoke1100Dec 13, 2014

Costliest events since 1996

  1. Feb 24, 2013Blizzard, Collingsworth$660,000
    National Weather Service narrative

    Blizzard conditions reported by a trained spotter in Samnorwood and 4.0 inches storm total snow.

  2. Apr 13, 1999Thunderstorm Wind$300,000
    National Weather Service narrative

    There was extensive damage all across the town of Wellington by downburst winds.

  3. Apr 28, 2006Hail$118,000
    National Weather Service narrative

    Report of pea-sized hail covering the ground four inches deep with several vehicle accidents as a result of hail on the roads along with near zero mile visibility from hail fog. There were no reports of injuries.

  4. Jun 19, 2007Thunderstorm Wind$108,000
    National Weather Service narrative

    Downburst winds resulted in extensive damage throughout the town of Wellington and across much of Collingsworth County. Numerous businesses and some homes suffered extensive damage to roofs...numerous large trees were uprooted...and at least one semi truck blew over. No injuries or fatalities were reported.

  5. May 26, 2008Hail$90,000
    National Weather Service narrative

    Hailstones reported to be as large as baseballs broke out windows in several homes and caused damage to tractors and vehicles.

  6. Apr 15, 2003Thunderstorm Wind$85,000
    National Weather Service narrative

    Severe thunderstorms produced wind damage and large hail across the southern and central Texas panhandle along with an isolated tornado over the southeastern Texas panhandle during the afternoon and evening hours. No damage or injuries occurred from the tornado as it remained over open country.

  7. Apr 15, 2003Thunderstorm Wind$60,000
    National Weather Service narrative

    Large trees down and damage to a structure was reported.

  8. May 31, 2022Tornado$50,000
    National Weather Service narrative

    The tornado touched down just southside Dodson and moved across|the south side of town before moving across open fields to the|Oklahoma border. The tornado was relatively wide and exhibited|some signs of being multi vortex on storm chaser video, but|estimated wind speeds were only high end EF0. Along the path,|there were numerous large tree limbs snapped and a few uprooted|trees. There was damage to roofs and porches of several homes and|some weak out buildings were destroyed. One unanchored travel|trailer was rolled 40 feet and destroyed as well. There were a|few isolated power poles broken, but most remained standing along|the tornado path. The tornado did cross the county line…

  9. Apr 30, 2012Flash Flood$50,000
    National Weather Service narrative

    A storm chaser reported that streets in the town of Wellington, Texas were flooded under eight inches of water. Local law enforcement officials reported that numerous homes, roads, and buildings were flooded in Wellington and that U.S. Highway 62 between the towns of Dodson, Texas and Hollis, Oklahoma was flooded. There were no reports of injuries or fatalities.

  10. May 26, 1996Thunderstorm Wind$50,000
    National Weather Service narrative

    Earlier morning thunderstorm over Wellington blew over a gas pump at the Allsups store and destroyed a barn and blew down a coupleof power poles.

  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 Memphis, 20.2 miles from the county’s population centre, with records from 1905.

All-time high
117°F2 times, most recently Aug 3, 1944
All-time low
−11°FJan 18, 1930
Warmest night
88°FSep 4, 1922
Coldest day
9°FFeb 15, 2021
Wettest day
8.80 inJun 7, 1960
Snowiest day
12.0 inDec 16, 1931
Hottest year
1963mean 64.4°F
Coldest year
1924mean 57.6°F
Wettest year
194139.49 in
Driest year
19708.84 in
Snowiest season
20.0 in1929-30
Average monthly high and low temperature and precipitation, last 30 years, Memphis 32°F 54° 26° 0.7 Jan 57° 29° 0.8 Feb 67° 37° 1.3 Mar 76° 46° 2.0 Apr 84° 56° 3.3 May 93° 66° 2.9 Jun 97° 70° 2.2 Jul 96° 69° 2.5 Aug 88° 61° 2.3 Sep 77° 49° 1.9 Oct 65° 36° 1.1 Nov 55° 28° 0.9 Dec Precipitation, inches
Average daily high and low by month, and average monthly precipitation, over the last 30 years.
Days reaching 95°F per year 1976: 38 1977: 64 1983: 64 1985: 68 1986: 52 1987: 38 1988: 51 1989: 54 1990: 67 1991: 45 1992: 40 1993: 59 1994: 69 1995: 49 1996: 54 1997: 54 1998: 108 1999: 67 2000: 90 2001: 69 2002: 54 2003: 55 2004: 40 2005: 65 2006: 84 2007: 29 2008: 58 2009: 53 2010: 63 2011: 115 115 2012: 83 2013: 63 2014: 57 2015: 55 2016: 51 2017: 56 2018: 75 2019: 63 2020: 73 2021: 58 2022: 89 2023: 75 2024: 85 2025: 50 19761992200220122022
Days reaching 95°F each complete year, last 50 years. Thirty-year average: 66.4.
Snowfall by winter 1979: 0.0 in 1984: 1.5 in 1985: 12.0 in 1987: 4.5 in 1988: 0.3 in 1989: 0.0 in 1990: 0.0 in 1991: 0.0 in 1992: 5.3 in 1993: 5.8 in 1994: 2.0 in 1995: 0.0 in 1996: 8.0 in 1997: 5.5 in 1998: 0.0 in 1999: 2.0 in 2000: 12.5 in 2001: 8.5 in 2002: 6.0 in 2003: 3.3 in 2004: 0.7 in 2005: 3.0 in 2006: 10.8 in 2007: 0.8 in 2008: 1.4 in 2009: 17.5 in 17.5 2013: 10.7 in 2014: 9.6 in 2015: 3.5 in 2016: 2.5 in 2017: 0.2 in 2018: 6.0 in 2019: 5.0 in 2020: 13.7 in 2021: 4.1 in 2022: 5.5 in 2023: 2.0 in 2024: 6.0 in 2025: 7.9 in 1979199420042017
Total snowfall each winter (July to June), last 50 winters.

Median first snow

December 24

Earliest: October 23, 1936

Median last snow

February 14

Latest: April 14, 2020

17 of 96 winters had no measurable snow.

Station Memphis (USC00415821), 2,065 ft elevation, 20.2 miles from the population centre. Daily records from 1905 to October 22, 2026; 99.2% 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

14 since 1953. The most recent: Severe Winter Storms, February 19, 2021.

Federal disaster declarations
Feb 19, 2021Severe Ice StormSevere Winter StormsMajor disasterDR-4586-TX
Feb 14, 2021Severe Ice StormSevere Winter StormEmergencyEM-3554-TX
Mar 25, 2020BiologicalCovid-19 PandemicMajor disasterDR-4485-TX
Mar 13, 2020BiologicalCovid-19EmergencyEM-3458-TX
Feb 9, 2016Severe StormSevere Winter Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disasterDR-4255-TX
May 29, 2015Severe StormSevere Storms, Tornadoes, Straight-Line Winds and FloodingMajor disasterDR-4223-TX
Mar 14, 2008FireWildfiresEmergencyEM-3284-TX
Jan 11, 2006FireExtreme Wildfire ThreatMajor disasterDR-1624-TX
Sep 24, 2005HurricaneHurricane RitaMajor disasterDR-1606-TX
Sep 21, 2005HurricaneHurricane RitaEmergencyEM-3261-TX
Sep 2, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3216-TX
Sep 1, 1999FireExtreme Fire HazardsEmergencyEM-3142-TX
Aug 26, 1998Severe StormTropical Storm CharleyMajor disasterDR-1239-TX
Jul 5, 1968FloodSevere Storms, High Winds & FloodingMajor disasterDR-246-TX

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 Collingsworth County stands among 254 counties in Texas and 3,143 in the United States.

Ranks
Tornadoes since 19504492 / 254529 / 3,143
Tornadoes rated F3/EF3 or stronger612 / 254156 / 3,143
Tropical cyclones within 50 mi0——
Hurricane-strength passes within 50 mi0——
Wildfire acres since 198462,63646 / 254408 / 3,143
Flood insurance claims4184 / 2542,607 / 3,143
Flood insurance paid$17,000195 / 2542,652 / 3,143
Disaster declarations14223 / 2542,433 / 3,143
Flood events since 199613236 / 2542,802 / 3,143
Hail and wind events since 199631089 / 2541,156 / 3,143
Winter storm events since 19964262 / 2542,152 / 3,143
Reported damage since 1996$1.7 million231 / 2542,824 / 3,143
River crests at major flood stage3100 / 2541,106 / 3,143
High tide flooding days a year, last 10 years0.0——
Months in severe drought since 1895117249 / 2541,838 / 3,143
Medium or heavy smoke days a year, last 10 years13.244 / 2541,967 / 3,143
Earthquakes M4+ within 50 mi since 1900283 / 2541,151 / 3,143
Earthquakes M2.5+ in the county since 1973161 / 254826 / 3,143

Neighbouring counties

Neighbouring counties
Beckham County OK7506,6888
Childress County27039,9401
Donley County62079,7507
Gray County930307,2743
Hall County56012,1792
Harmon County OK36019,12127
Wheeler County590178,4631

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 USC00415821.
  • 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.
  • 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.