Ellis County
Population 3,613 (2025) 1,232 sq mi
Large wildfires have burned 159,156 acres of Ellis County since 1984, 10th most of 77 counties in Oklahoma; the largest was the Catesby Fire Fire in 2024.
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 195083
- Tropical cyclone tracks within 100 miles since 1851, wider where stronger1
- Wildfire burn scars since 198412
At a glance
The record for Ellis County in eight numbers. Each links to its section below.
Acres burned since 1984
159,156
10th of 77 in Oklahoma
12 large fires; the largest was Catesby Fire, 2024
DetailsStrongest tornado
EF3
April 14, 2012, 34.0 mile path
Tornadoes
About one tornado a year since 1950, 4 of them rated F3/EF3 or stronger.
Strongest
April 14, 2012
EF3, 34.0 mile path
400 yards wide; 6 killed along the whole path.
Most recent
Tuesday, June 17, 2025
EF1, 1.8 mile path
Within the past year.
Every recorded tornado
| Jun 17, 2025 | EF1 | 1.8 | 0 | 0 |
| Jun 17, 2025 | EF2 | 14.3 | 0 | 0 |
| May 18, 2025 | EF1 | 3.5 | 0 | 0 |
| May 18, 2025 | EF0 | 0.2 | 0 | 0 |
| May 18, 2025 | EF3 | 6.0 | 0 | 0 |
| May 18, 2025 | EF1 | 1.7 | 0 | 0 |
| Jun 15, 2023 | EF1 | 4.8 | 0 | 0 |
| May 23, 2019 | EF3 | 15.7 | 0 | 0 |
| Apr 17, 2019 | EF0 | 1.3 | 0 | 0 |
| Apr 17, 2019 | EF1 | 1.6 | 0 | 0 |
| Nov 16, 2015 | EF2 | 27.2 | 0 | 0 |
| Nov 16, 2015 | EF1 | 43.0 | 0 | 0 |
| Apr 14, 2012 | EF3 | 34.0 | 29 | 6 |
| Jun 11, 2011 | EF0 | 1.0 | 0 | 0 |
| May 19, 2010 | EF1 | 0.5 | 0 | 0 |
| May 19, 2010 | EF0 | 0.5 | 0 | 0 |
| Apr 26, 2009 | EF2 | 10.3 | 0 | 0 |
| May 5, 2007 | EF0 | 1.0 | 0 | 0 |
| May 5, 2007 | EF2 | 7.2 | 1 | 0 |
| May 5, 2007 | EF0 | 2.0 | 0 | 0 |
| May 5, 2007 | EF0 | 0.3 | 0 | 0 |
| May 5, 2007 | EF0 | 5.0 | 0 | 0 |
| May 4, 2007 | EF0 | 0.2 | 0 | 0 |
| May 4, 2007 | EF1 | 4.0 | 0 | 0 |
| Apr 21, 2004 | F0 | 1.0 | 0 | 0 |
| Apr 21, 2004 | F0 | 0.3 | 0 | 0 |
| Mar 27, 2004 | F0 | 2.0 | 0 | 0 |
| Jun 12, 2002 | F1 | 1.0 | 0 | 0 |
| May 5, 2002 | F0 | 1.5 | 0 | 0 |
| Feb 24, 2000 | F1 | 27.0 | 0 | 0 |
| Jun 18, 1999 | F0 | 0.0 | 0 | 0 |
| Jun 8, 1995 | F0 | 0.1 | 0 | 0 |
| Apr 9, 1992 | F0 | 0.2 | 0 | 0 |
| Apr 9, 1992 | F0 | 0.2 | 0 | 0 |
| Apr 24, 1990 | F2 | 19.0 | 5 | 0 |
| Mar 22, 1987 | F1 | 0.1 | 0 | 0 |
| Mar 22, 1987 | F0 | 0.2 | 0 | 0 |
| Mar 22, 1987 | F2 | 7.5 | 0 | 0 |
| May 27, 1983 | F0 | 0.1 | 0 | 0 |
| May 13, 1983 | F1 | 2.5 | 0 | 0 |
| May 30, 1982 | F0 | 0.1 | 0 | 0 |
| May 15, 1982 | F2 | 3.0 | 0 | 0 |
| May 11, 1982 | F0 | 0.1 | 0 | 0 |
| Mar 4, 1981 | F0 | 0.3 | 0 | 0 |
| Apr 30, 1978 | F2 | 3.0 | 0 | 0 |
| Mar 2, 1977 | F1 | 1.0 | 0 | 0 |
| Nov 19, 1973 | F1 | 4.3 | 0 | 0 |
| Jun 23, 1969 | F0 | 0.1 | 0 | 0 |
| Jun 9, 1968 | F0 | 0.1 | 0 | 0 |
| Jun 10, 1967 | F0 | 0.1 | 0 | 0 |
| Jun 10, 1967 | F1 | 3.8 | 0 | 0 |
| Jun 10, 1967 | F2 | 0.1 | 0 | 0 |
| Jun 7, 1966 | F0 | 0.1 | 0 | 0 |
| Apr 17, 1966 | F0 | 1.0 | 0 | 0 |
| Apr 17, 1966 | F1 | 6.5 | 0 | 0 |
| May 25, 1965 | F1 | 0.1 | 0 | 0 |
| May 25, 1965 | F0 | 0.1 | 0 | 0 |
| May 13, 1965 | F2 | 0.1 | 0 | 0 |
| May 7, 1965 | F0 | 0.1 | 0 | 0 |
| Aug 17, 1964 | F0 | 0.1 | 0 | 0 |
| May 10, 1964 | F0 | 0.1 | 0 | 0 |
| Jun 5, 1962 | F0 | 0.1 | 0 | 0 |
| Jun 5, 1962 | F0 | 0.1 | 0 | 0 |
| Jun 5, 1962 | F0 | 0.1 | 0 | 0 |
| Jun 5, 1962 | F0 | 0.1 | 0 | 0 |
| Jun 5, 1962 | F0 | 0.1 | 0 | 0 |
| Jun 5, 1962 | F0 | 0.1 | 0 | 0 |
| May 4, 1961 | F2 | 0.1 | 0 | 0 |
| Mar 28, 1960 | F2 | 24.2 | 0 | 0 |
| Jun 21, 1958 | F3 | 0.5 | 0 | 0 |
| May 29, 1957 | F0 | 0.1 | 0 | 0 |
| May 16, 1957 | F1 | 6.9 | 0 | 0 |
| Apr 20, 1957 | F0 | 0.1 | 0 | 0 |
| Jun 23, 1956 | F1 | 0.1 | 0 | 0 |
| Jun 22, 1955 | F1 | 0.1 | 0 | 0 |
| Jun 16, 1955 | F1 | 0.1 | 0 | 0 |
| Jun 15, 1955 | F2 | 5.9 | 0 | 0 |
| Jun 3, 1955 | F1 | 0.1 | 0 | 0 |
| May 25, 1955 | F1 | 4.9 | 0 | 0 |
| Oct 25, 1954 | F0 | 7.9 | 0 | 0 |
| Apr 29, 1954 | F2 | 33.3 | 0 | 0 |
| Jul 27, 1951 | F1 | 0.1 | 0 | 0 |
| May 7, 1950 | F1 | 0.1 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Ellis County: 0.
- 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
1 tropical cyclone passed within 100 miles since 1851, none within 50.
Most recent
August 19, 2007
Erin, Remnant low
41.1 miles at closest approach.
Every storm within 100 miles
- Tropical storms and hurricanes (34 kt or more, still tropical) at closest approach. Post-tropical remnants with gale-force winds are listed but not counted. Direct: track within 50 miles; near: within 100 miles. Distance is measured to the county boundary for counties and to the city centre for cities, using positions interpolated hourly between HURDAT2 fixes.
National Hurricane Center HURDAT2, 1851 to 2025.
Wildfire and smoke
159,156 acres burned in 12 large fires since 1984, equal to 20% of the land.
Largest
February 27, 2024
Catesby Fire, 83,917 acres
83,973 acres inside Ellis County.
Most recent
February 27, 2024
Catesby Fire
83,917 acres in total.
Every large fire
| Catesby Fire | 2024 | 83,973 | 83,917 |
| Smokehouse Creek | 2024 | 23,093 | 1,047,245 |
| Washita River Fire | 2022 | 1,475 | 35,397 |
| Gage Fire | 2019 | 7,882 | 7,875 |
| Oks - 283 | 2017 | 7 | 68,511 |
| Perryton | 2017 | 4,820 | 290,085 |
| Higgins | 2014 | 10,111 | 28,449 |
| Unnamed | 2008 | 1,856 | 1,861 |
| Unnamed | 2008 | 16,289 | 16,278 |
| Unnamed | 2008 | 6,322 | 6,455 |
| Unnamed | 2008 | 349 | 1,951 |
| Unnamed | 2006 | 2,972 | 4,548 |
- 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: 44 days
Heavy smoke on 14 days in 2021, the most of any year.
Last 10 years
17.9 days a year
Medium or heavy smoke, 2016 to 2025.
2025
5 days
Medium or heavy smoke. 24 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
3 federal flood insurance claims since 1996, with $10,000 paid.
Flood events since 1996
- Flash Flood14
- Heavy Rain3
- 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 168 of 1,581 months since 1895 (11%); the longest spell lasted 32 months.
168
Months in severe drought or worse since 1895
60
Months in extreme drought
11%
Share of all months, severe or worse
118
Drought reports to the Weather Service since 1996
Lowest reading
June 1956
−6.23, extreme drought
Longest severe spell
32 months
July 1954 to February 1957.
Latest month
September 2026
−4.08, extreme drought
- 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
16 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 5.1 in 2016.
3
Magnitude 2.5+ inside the county since 1973
362
Magnitude 3+ within 50 miles since 1973
16
Magnitude 4+ within 50 miles since 1900
1
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
February 13, 2016
18 km SE of Waynoka, Oklahoma; 43.7 miles away, 5.2 miles deep.
Most recent, magnitude 3 or more
April 20, 2026
Magnitude 3.0
17 km SE of Waynoka, Oklahoma; 41.8 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| May 25, 2021 | 4.0 | Inside |
| May 13, 2017 | 4.2 | 42.0 |
| Nov 7, 2016 | 4.1 | 40.0 |
| Oct 21, 2016 | 4.0 | 39.1 |
| Jul 8, 2016 | 4.4 | 40.4 |
| Jul 8, 2016 | 4.2 | 41.4 |
| Jul 8, 2016 | 4.2 | 41.8 |
| Feb 13, 2016 | 4.0 | 42.0 |
| Feb 13, 2016 | 5.1 | 43.7 |
| Jan 7, 2016 | 4.4 | 42.0 |
| Jan 6, 2016 | 4.7 | 43.1 |
| Jan 6, 2016 | 4.4 | 42.0 |
| Jan 6, 2016 | 4.0 | 42.6 |
| Dec 5, 2015 | 4.0 | 40.5 |
| Nov 15, 2015 | 4.3 | 40.8 |
| Feb 15, 1974 | 4.5 | 38.8 |
- 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.
Severe weather and other events
1,026 events in the National Weather Service record, 698 of them since 1996.
265
Hail reports, 1 inch or larger
53
Hail, 2 inches or larger
196
Damaging gusts, 58 mph+
58
Winter weather events since 1996
27
Heat events since 1996
10
Cold events since 1996
Largest hail
May 18, 2025
4.50 inches
Strongest measured or estimated gust
August 1, 1966
92 mph
More event types since 1996
| Lightning | 1 | 0 |
| Dense fog and smoke | 2 | 0 |
Costliest events since 1996
- Jan 30, 2002Ice Storm, Ellis$25.0 million
National Weather Service narrative
Freezing rain began across the northwest third of the state during the evening of the 29th with significant accumulations of ice developing shortly after midnight on the 30th. Freezing rain shifted southward during the early morning of the 30th with moderate to occasionally heavy freezing rain occurring in a 50 to 60 mile wide band, extending from north central Oklahoma, near Ponca City and Perry, southwestward toward Enid, Kingfisher, Oklahoma City, Weatherford, Anadarko, and Hobart. In many areas, the freezing rain continued for 12 to 24 hours, with ice accumulations of 1 to 2 inches commonly observed. As the end of the storm neared, freezing rain transitioned to sleet and snow…
- Feb 27, 2024Wildfire, Ellis$1.3 million
National Weather Service narrative
The 'Catesby Fire' spread over 89,688 acres across northern Ellis County.
- Mar 1, 2024Wildfire, Ellis$1.3 million
National Weather Service narrative
The 'Catesby Fire', which began on 27 February 2024, continued to burn into the first days of March 2024. See the February 2024 storm data entry for additional details on this fire.
- Jan 14, 2017Ice Storm, Ellis$657,000
National Weather Service narrative
Numerous tree limbs were reported downed by ice. The electric cooperatives reported 1698 power outages, with $657K worth of damages.
- May 5, 2007Tornado$612,000
National Weather Service narrative
This tornado developed 4 miles north-northeast of Roll in northern Roger Mills County and crossed the Canadian River into southern Ellis County at 9:36 pm CDT. Two houses and two mobile homes were destroyed in the Packsaddle area of southern Ellis County to the east of US Highway 283 (about 18 miles south-southwest of Harmon), and a roof was removed from another mobile home. At least one of these homes suffered a complete removal of the roof and some damage to the exterior walls. Several cars were damaged or destroyed, as well as trees and power lines. Monetary values were estimated.
- Jul 24, 1996Thunderstorm Wind$300,000
National Weather Service narrative
Severe thunderstorm winds estimated at 70 mph caused major damage in and around Shattuck. Numerous large trees were split, snapped, or uprooted. A brick wall was blown down, and plate glass windows were blown out of a car dealership in Shattuck. The Shattuck Golf Club had the roof torn off the clubhouse and a shed containing golf carts was blown apart. Countless fences and tree limbs throughout town were blown down. Just west of Shattuck, Braum's Farms suffered extensive damage to hay barns and irrigation systems. Other farms, particularly to the west and south of Shattuck, sustained similar damage to outbuildings and irrigation systems.
- May 23, 2019Tornado$150,000
National Weather Service narrative
This tornado developed in Lipscomb County Texas and moved through Beaver County (see Storm Data entries from the NWS Amarillo in the Texas and Oklahoma panhandles) before moving into northwest Ellis County. This tornado was surveyed by meteorologists from both the NWS Norman and Amarillo.||Immediately after moving into Ellis County, a home and outbuilding were completely destroyed. An extended cab pickup truck in a carport at this home was blown 0.3 of a mile northeast with some pieces of the truck found over one half mile northeast of the home. Numerous power poles were snapped both north-south along the county line and east-west along county road 30. ||The tornado continued to…
- May 27, 2001Thunderstorm Wind$125,000
National Weather Service narrative
A grain elevator was destroyed, and another was damaged. A mobile home was also damaged.
- May 4, 2007Tornado$110,000
National Weather Service narrative
Windows were blown out of a house west of Arnett. Surrounding the house, a barn and several outbuildings were destroyed. Farm equipment at the home was also destroyed. Numerous tree limbs and power lines were downed. Monetary damages were estimated.
- May 18, 2025Tornado$100,000
National Weather Service narrative
This tornado began near the intersection of E0630 Road and N1760 Road, breaking four power poles and damaging trees. It moved east-northeast along E0630 Road with extensive tree damage noted just east of N1770 Road. The tornado then turned more northeast and moved over open country. For much of the path, there were few if any damage indicators, but drone imagery from surveys by the National Severe Storms Laboratory and Disaster Imaging Inc, as well as visual sightings of the tornado confirms that this tornado was continuous along this 5 mile path. Additional tree damage was noted along E0620 Road as the tornado continued moving northeast, with the most severe damage along N1810…
- 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 Gage Airport, 2.6 miles from the county’s population centre, with records from 1904.
- All-time high
- 114°FJul 19, 2022
- All-time low
- −20°FJan 15, 1905
- Warmest night
- 82°FAug 13, 2026
- Coldest day
- −1°FFeb 12, 1905
- Wettest day
- 4.94 inMay 7, 1950
- Snowiest day
- 18.0 inFeb 21, 1971
- Hottest year
- 2024mean 62.2°F
- Coldest year
- 1979mean 55.6°F
- Wettest year
- 195734.74 in
- Driest year
- 20117.62 in
- Snowiest season
- 41.3 in1972-73
Median first snow
December 2
Earliest: October 8, 1970
Median last snow
March 6
Latest: April 29, 1994
0 of 48 winters had no measurable snow.
Station Gage Airport (USW00013975), 2,185 ft elevation, 2.6 miles from the population centre. Daily records from 1904 to October 26, 2026; 99.4% 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
29 since 1953. The most recent: 840 Road Fire, March 14, 2025.
| Mar 14, 2025 | Fire | FM-5557-OK |
| Feb 27, 2024 | Fire | FM-5489-OK |
| Feb 24, 2021 | Severe Ice Storm | DR-4587-OK |
| Feb 17, 2021 | Severe Ice Storm | EM-3555-OK |
| Dec 21, 2020 | Severe Ice Storm | DR-4575-OK |
| Apr 5, 2020 | Biological | DR-4530-OK |
| Mar 13, 2020 | Biological | EM-3462-OK |
| Nov 26, 2019 | Fire | FM-5305-OK |
| Jun 1, 2019 | Severe Storm | DR-4438-OK |
| Mar 7, 2017 | Fire | FM-5177-OK |
| Feb 10, 2017 | Severe Storm | DR-4299-OK |
| Dec 29, 2015 | Severe Ice Storm | DR-4247-OK |
| Apr 8, 2013 | Severe Storm | DR-4109-OK |
| Feb 2, 2011 | Severe Storm | EM-3316-OK |
| Mar 5, 2010 | Severe Ice Storm | DR-1883-OK |
| Jan 30, 2010 | Severe Storm | EM-3308-OK |
| Jun 23, 2009 | Snowstorm | EM-3305-OK |
| Oct 9, 2008 | Severe Storm | DR-1803-OK |
| Jul 9, 2008 | Severe Storm | DR-1775-OK |
| Dec 10, 2007 | Severe Ice Storm | EM-3280-OK |
| Aug 24, 2007 | Severe Storm | DR-1718-OK |
| Jun 7, 2007 | Severe Storm | DR-1707-OK |
| Jan 14, 2007 | Severe Ice Storm | EM-3272-OK |
| Jan 10, 2006 | Fire | DR-1623-OK |
| Sep 5, 2005 | Hurricane | EM-3219-OK |
| Feb 1, 2002 | Severe Ice Storm | DR-1401-OK |
| Jun 29, 2001 | Severe Storm | DR-1384-OK |
| Jun 26, 1995 | Tornado | DR-1058-OK |
| May 18, 1990 | Severe Storm | DR-866-OK |
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 Ellis County stands among 77 counties in Oklahoma and 3,143 in the United States.
| Tornadoes since 1950 | 83 | 16 / 77 |
| Tornadoes rated F3/EF3 or stronger | 4 | 43 / 77 |
| Tropical cyclones within 50 mi | 0 | — |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 159,156 | 10 / 77 |
| Flood insurance claims | 3 | 64 / 77 |
| Flood insurance paid | $10,000 | 67 / 77 |
| Disaster declarations | 29 | 53 / 77 |
| Flood events since 1996 | 18 | 68 / 77 |
| Hail and wind events since 1996 | 429 | 44 / 77 |
| Winter storm events since 1996 | 58 | 25 / 77 |
| Reported damage since 1996 | $30.6 million | 33 / 77 |
| River crests at major flood stage | 0 | — |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 168 | 12 / 77 |
| Medium or heavy smoke days a year, last 10 years | 17.9 | 29 / 77 |
| Earthquakes M4+ within 50 mi since 1900 | 16 | 30 / 77 |
| Earthquakes M2.5+ in the county since 1973 | 3 | 40 / 77 |
Neighbouring counties
| Beaver County | 76 | 0 |
| Dewey County | 55 | 0 |
| Harper County | 33 | 0 |
| Hemphill County TX | 54 | 0 |
| Lipscomb County TX | 45 | 0 |
| Roger Mills County | 58 | 0 |
| Woodward County | 65 | 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, station USW00013975.
- 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.