Brandon
Population 11,306 (2025)
123 tornadoes have tracked within 25 miles of Brandon since 1950, 2 of them rated EF3 or F3 or stronger; the most recent was on July 28, 2025.
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths within 25 miles since 1950123
- Major flood years since 1978, Minnehaha County6
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 Minnehaha 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 Minnehaha County.
Strongest tornado
F4
June 7, 1993, 54.0 mile path
Federal disaster declarations
17
Most recent: Severe Storms, Straight-Line Winds, and Flooding, 2024
DetailsSnowiest season
94.7in
Winter of 1968-69
Tornadoes
About 2 tornados a year since 1950, 2 of them rated F3/EF3 or stronger.
Strongest
June 7, 1993
F4, 54.0 mile path
800 yards wide.
Most recent
Monday, July 28, 2025
EF1, 2.1 mile path
Within the past year.
Every recorded tornado
| Jul 28, 2025 | EF1 | 2.1 | 0 | 0 |
| May 30, 2022 | EFU | 0.7 | 0 | 0 |
| May 30, 2022 | EF1 | 1.9 | 0 | 0 |
| May 30, 2022 | EF1 | 0.5 | 0 | 0 |
| May 30, 2022 | EF1 | 0.5 | 0 | 0 |
| Aug 28, 2021 | EFU | 1.1 | 0 | 0 |
| Aug 28, 2021 | EFU | 1.6 | 0 | 0 |
| Aug 28, 2021 | EFU | 0.9 | 0 | 0 |
| Aug 28, 2021 | EF1 | 2.2 | 0 | 0 |
| Aug 28, 2021 | EFU | 0.5 | 0 | 0 |
| Sep 10, 2019 | EF2 | 0.7 | 0 | 0 |
| Sep 10, 2019 | EF2 | 0.6 | 8 | 0 |
| Sep 10, 2019 | EF2 | 0.9 | 0 | 0 |
| Aug 17, 2019 | EF1 | 7.0 | 0 | 0 |
| Jul 18, 2019 | EF0 | 0.4 | 0 | 0 |
| Jul 30, 2018 | EF0 | 0.1 | 0 | 0 |
| Jul 30, 2018 | EF0 | 0.1 | 0 | 0 |
| Jun 17, 2014 | EF2 | 3.4 | 0 | 0 |
| Jun 16, 2014 | EF0 | 0.2 | 0 | 0 |
| Jun 5, 2014 | EF0 | 0.2 | 0 | 0 |
| Jun 5, 2014 | EF0 | 0.4 | 0 | 0 |
| Jun 5, 2014 | EF0 | 0.2 | 0 | 0 |
| Jun 5, 2008 | EF1 | 0.8 | 0 | 0 |
| Jun 5, 2008 | EF2 | 2.6 | 0 | 0 |
| Jun 5, 2008 | EF0 | 1.5 | 0 | 0 |
| May 1, 2008 | EF2 | 12.9 | 0 | 0 |
| Jun 22, 2007 | EF0 | 0.2 | 0 | 0 |
| Sep 16, 2006 | F1 | 1.8 | 0 | 0 |
| Jun 20, 2005 | F0 | 0.7 | 0 | 0 |
| May 28, 2004 | F0 | 0.2 | 0 | 0 |
| May 9, 2004 | F1 | 6.0 | 0 | 0 |
| Apr 18, 2004 | F1 | 4.0 | 0 | 0 |
| Jun 24, 2003 | F0 | 0.1 | 0 | 0 |
| Jun 24, 2003 | F0 | 0.5 | 0 | 0 |
| Jun 24, 2003 | F1 | 1.7 | 0 | 0 |
| Jun 24, 2003 | F1 | 0.6 | 3 | 0 |
| Jun 24, 2003 | F0 | 0.8 | 0 | 0 |
| Jun 24, 2003 | F0 | 1.2 | 0 | 0 |
| Jun 24, 2003 | F0 | 1.5 | 0 | 0 |
| Jun 24, 2003 | F0 | 2.3 | 0 | 0 |
| Jun 24, 2003 | F1 | 1.3 | 0 | 0 |
| Jun 24, 2003 | F0 | 0.8 | 0 | 0 |
| Jun 24, 2003 | F0 | 0.6 | 0 | 0 |
| Jun 24, 2003 | F0 | 0.1 | 0 | 0 |
| Jul 27, 2001 | F0 | 0.1 | 0 | 0 |
| Jul 27, 2001 | F0 | 0.4 | 0 | 0 |
| Jul 27, 2001 | F0 | 1.0 | 0 | 0 |
| Jul 27, 2001 | F1 | 1.0 | 0 | 0 |
| Jun 12, 2001 | F0 | 0.1 | 0 | 0 |
| Jun 12, 2001 | F0 | 0.1 | 0 | 0 |
| Jun 12, 2001 | F0 | 0.1 | 0 | 0 |
| Jul 11, 2000 | F0 | 0.1 | 0 | 0 |
| Jul 7, 1997 | F0 | 0.1 | 0 | 0 |
| Jul 7, 1997 | F0 | 0.1 | 0 | 0 |
| Jul 7, 1997 | F0 | 0.1 | 0 | 0 |
| Jul 7, 1997 | F0 | 0.1 | 0 | 0 |
| Oct 29, 1996 | F0 | 0.1 | 0 | 0 |
| Aug 6, 1996 | F0 | 0.1 | 0 | 0 |
| May 2, 1996 | F0 | 0.1 | 0 | 0 |
| Jul 25, 1995 | F0 | 0.1 | 0 | 0 |
| Jun 12, 1994 | F0 | 0.1 | 0 | 0 |
| Jun 12, 1994 | F0 | 0.1 | 0 | 0 |
| Apr 25, 1994 | F0 | 0.1 | 0 | 0 |
| Apr 25, 1994 | F0 | 0.1 | 0 | 0 |
| Apr 25, 1994 | F0 | 0.1 | 0 | 0 |
| Apr 25, 1994 | F0 | 0.1 | 0 | 0 |
| Jul 3, 1993 | F0 | 0.1 | 0 | 0 |
| Jun 7, 1993 | F1 | 12.0 | 0 | 0 |
| Jun 7, 1993 | F4 | 54.0 | 5 | 0 |
| May 7, 1993 | F1 | 15.0 | 0 | 0 |
| May 7, 1993 | F2 | 8.0 | 0 | 0 |
| May 7, 1993 | F1 | 5.5 | 0 | 0 |
| May 7, 1993 | F2 | 11.5 | 0 | 0 |
| May 7, 1993 | F0 | 5.0 | 0 | 0 |
| May 7, 1993 | F2 | 15.0 | 1 | 0 |
| May 7, 1993 | F2 | 15.0 | 0 | 0 |
| Jun 16, 1992 | F1 | 0.5 | 0 | 0 |
| Jun 16, 1992 | F2 | 5.0 | 0 | 0 |
| Jul 17, 1989 | F1 | 0.3 | 1 | 0 |
| Jul 11, 1987 | F2 | 5.0 | 0 | 0 |
| Aug 9, 1986 | F0 | 0.2 | 0 | 0 |
| Aug 9, 1986 | F0 | 0.3 | 0 | 0 |
| Apr 26, 1986 | F2 | 9.5 | 0 | 0 |
| Apr 26, 1986 | F2 | 5.0 | 0 | 0 |
| Apr 21, 1985 | F0 | 0.1 | 0 | 0 |
| Apr 21, 1985 | F1 | 1.2 | 0 | 0 |
| Aug 4, 1982 | F0 | 0.1 | 0 | 0 |
| Jul 17, 1980 | F0 | 0.1 | 0 | 0 |
| May 29, 1980 | F0 | 0.3 | 0 | 0 |
| Jun 19, 1979 | F1 | 0.1 | 0 | 0 |
| Jun 19, 1979 | F1 | 0.1 | 0 | 0 |
| Jul 6, 1978 | F2 | 14.2 | 0 | 0 |
| Jul 4, 1978 | F0 | 0.1 | 0 | 0 |
| May 20, 1975 | F1 | 0.1 | 0 | 0 |
| Aug 17, 1974 | F1 | 0.1 | 0 | 0 |
| Jul 1, 1973 | F1 | 0.5 | 0 | 0 |
| Jun 15, 1973 | F0 | 0.1 | 0 | 0 |
| Apr 19, 1973 | F1 | 1.0 | 0 | 0 |
| Jun 3, 1971 | F0 | 0.1 | 0 | 0 |
| Jun 15, 1970 | F0 | 0.1 | 0 | 0 |
| Jun 15, 1970 | F0 | 0.1 | 0 | 0 |
| Jul 13, 1969 | F0 | 0.1 | 0 | 0 |
| Jun 28, 1969 | F1 | 2.0 | 4 | 0 |
| Jun 25, 1969 | F2 | 29.3 | 5 | 0 |
| Jun 22, 1968 | F1 | 0.5 | 0 | 0 |
| May 22, 1966 | F2 | 0.1 | 0 | 0 |
| May 24, 1965 | F1 | 0.1 | 0 | 0 |
| May 24, 1965 | F0 | 0.1 | 0 | 0 |
| May 8, 1965 | F2 | 4.5 | 0 | 0 |
| Jun 22, 1964 | F2 | 10.0 | 0 | 0 |
| Jun 22, 1964 | F2 | 16.1 | 0 | 0 |
| Jul 16, 1963 | F1 | 2.3 | 0 | 0 |
| Jul 4, 1962 | F1 | 0.1 | 0 | 0 |
| May 21, 1962 | F1 | 0.1 | 0 | 0 |
| May 12, 1962 | F2 | 10.1 | 0 | 0 |
| Jul 25, 1960 | F1 | 2.0 | 0 | 0 |
| Jun 11, 1959 | F0 | 0.1 | 0 | 0 |
| Jul 3, 1957 | F1 | 0.1 | 2 | 0 |
| Aug 8, 1956 | F2 | 0.1 | 0 | 0 |
| Aug 4, 1956 | F0 | 0.1 | 0 | 0 |
| Jun 29, 1956 | F2 | 0.1 | 0 | 0 |
| Jun 19, 1954 | F3 | 0.1 | 0 | 0 |
| Jun 19, 1951 | F1 | 0.5 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond this area.
- 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
No large wildfire has been mapped within 25 miles since satellite mapping began in 1984.
Smoke overhead
Smokiest year
2023: 64 days
Heavy smoke on 30 days in 2021, the most of any year.
Last 10 years
30.1 days a year
Medium or heavy smoke, 2016 to 2025.
2025
24 days
Medium or heavy smoke. 41 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
425 federal flood insurance claims since 1978, with $8.9 million paid.
Flood insurance figures are for Minnehaha County, the county that contains Brandon.
Most claims in one year
2010: 94 claims
$610,000 paid.
2nd most
2019: 93 claims
$2.9 million paid.
3rd most
1997: 45 claims
$388,000 paid.
Claims by ZIP code
| 57105 | 108 | $4.2 million |
| 57104 | 75 | $571,000 |
| 57022 | 65 | $858,000 |
| 57055 | 64 | $675,000 |
| 57106 | 40 | $1.4 million |
| 57103 | 28 | $276,000 |
| 57005 | 12 | $397,000 |
| 57107 | 10 | $160,000 |
| 57003 | 8 | $106,000 |
Flood events since 1996
- Flood162
- Flash Flood68
- Heavy Rain11
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 Minnehaha County, the county that contains Brandon.
Most severe crest
September 12, 2019
Split Rock Creek at Corson, 19.01 ft
10.51 feet above the 8.5 ft flood stage; major flooding by today’s categories.
Most recent moderate or major crest
June 23, 2024
Big Sioux River at Sioux Falls N. Cliff Avenue, 22.62 ft
Moderate flooding.
River gauges
| Big Sioux River above Dell Rapids | 1,481.0 | 1,490.00 ft | 2 |
| Big Sioux River at Sioux Falls I-90 | 12.0 | 18.91 ft | 1 |
| Big Sioux River at Sioux Falls Maple Street | 15.0 | 9.75 ft | 0 |
| Big Sioux River at Sioux Falls N. Cliff Avenue | 16.0 | 26.08 ft | 0 |
| Big Sioux River at Sioux Falls Western Avenue | 8.0 | 16.90 ft | 4 |
| Big Sioux River near Brandon | 1,304.0 | 1,313.53 ft | 2 |
| Big Sioux River near Dell Rapids | 12.0 | 16.70 ft | 10 |
| Pipestone Creek near Sherman | 1,500.0 | — | 0 |
| Silver Creek at Sioux Falls | 6.0 | 9.63 ft | 0 |
| Skunk Creek at Sioux Falls | 11.5 | 18.23 ft | 1 |
| Skunk Creek near Hartford | 10.0 | 15.08 ft | 0 |
| Split Rock Creek at Corson | 8.5 | 19.01 ft | 4 |
| Split Rock Creek near Garretson | 1,389.0 | 1,387.52 ft | 0 |
| Willow Creek near Crooks | 9.0 | 12.65 ft | 0 |
- 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 166 of 1,581 months since 1895 (11%); the longest spell lasted 35 months.
The drought index is for Minnehaha County, the county that contains Brandon.
166
Months in severe drought or worse since 1895
78
Months in extreme drought
11%
Share of all months, severe or worse
43
Drought reports to the Weather Service since 1996
Lowest reading
August 1931
−5.70, extreme drought
Longest severe spell
35 months
June 1988 to April 1991.
Latest month
September 2026
−3.09, severe 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
3 earthquakes of magnitude 2.5 or more within 50 miles since 1982; none reached magnitude 4.
2
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
July 11, 1982
Magnitude 3.6
5 km W of Egan, South Dakota; 29.4 miles away, 3.1 miles deep.
Most recent, magnitude 3 or more
December 10, 2023
Magnitude 3.0
11 km ESE of Wakonda, South Dakota; 46.3 miles away.
- 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.
- 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
1,566 events in the National Weather Service record for Minnehaha County, 1,345 of them since 1996.
280
Hail reports, 1 inch or larger
28
Hail, 2 inches or larger
346
Damaging gusts, 58 mph+
207
Winter weather events since 1996
27
Heat events since 1996
36
Cold events since 1996
Largest hail
July 13, 1997
4.50 inches
Strongest measured or estimated gust
June 11, 1984
160 mph
More event types since 1996
| Lightning | 7 | 0 |
| Dense fog and smoke | 1 | 1 |
Costliest events since 1996
- Apr 9, 2013Winter Storm, Minnehaha$20.0 million
National Weather Service narrative
An extended period of precipitation began with freezing rain quickly producing heavy ice accumulations, ranging up to more than a half inch in Sioux Falls. The precipitation then changed to sleet and then snow, with sleet and snow accumulations reaching 10 inches near Wall Lake. Very many branches, limbs, whole trees, and power lines were downed by the weight of ice and accompanying wind. Both the Sioux Falls area and other urban areas and rural electric cooperatives suffered major power line damage.|Trees and tree debris blocked many roads, and damaged several vehicles and homes. Major power outages were reported, affecting tens of thousands of people. The winter precipitation…
- Jun 16, 2004Flash Flood$10.0 million
National Weather Service narrative
Rainfall of 3 to 8 inches caused flooding of numerous basements. Structural damaged was caused to several of the basements as walls caved in. Ground floors of several residences, businesses, and schools were flooded, including a dentists office. There was significant damage to contents in the flooded buildings, including carpets, furniture, clothing, electronic equipment, and electric wiring. A mobile home park was especially hard hit, with all 37 units in the park flooded, and some units completely washed out. Many roads were flooded, and several were partly washed out, mainly at intersections. One parking lot caved in, with a driver barely escaping in his vehicle. Water and…
- Jun 12, 2001Flash Flood$5.0 million
National Weather Service narrative
Flash flooding of streams, roads, lowlands, homes, and other buildings was especially severe in the Valley Springs area. Most of the town was flooded, with widespread damage to basements and first floors of homes. The flooding left a layer of mud over much of the town. The sewer system backed up, leaving sewage in several houses and apartments.. A mobile home park was hard hit, with damage to the mobile home structures as well as the contents. Flooding and debris left some roads in the area closed for three days. Vehicles were damaged. The flooding in Valley Springs was caused by four to seven inches of rain falling in one to two hours. Damage outside the Valley Springs area was…
- Aug 31, 2013Hail$4.0 million
National Weather Service narrative
Large hail broke windows and damaged many vehicles, as well as siding and roofs. One automobile dealer with a large temporary outdoor display reported four thousand vehicles were damaged.
- Sep 10, 2019Tornado$3.0 million
National Weather Service narrative
Shortly after touchdown just southeast of O'Gorman High School, the tornado struck a multi-story apartment building and removed a majority of the roof. Numerous trees were uprooted in residential areas north of 41st Street as the tornado continued in a general southeast direction. The tornado crossed 41st Street into a more commercial district, causing significant structural damage to several businesses, including the removal of the roof from one strip mall and exterior walls from another building. After another quarter mile of travel to the southeast, the tornado destroyed an apartment building garage. The tornado lifted before reaching the corner of 49th Street and Western…
- Jun 5, 2014Hail$3.0 million
National Weather Service narrative
Large hail caused widespread damage to vehicles, windows, roofs, and siding.
- Mar 13, 2019Flood$2.5 million
National Weather Service narrative
Numerous flooding reports across the city of Sioux Falls and Minnehaha County, with several closed roads. Reports through social media as well as law enforcement. Other flooding resulted in extensive damage to public infrastructure including numerous county and township roads, culverts, and some bridges.
- Jun 24, 2003Tornado$2.5 million
National Weather Service narrative
A tornado heavily damaged 20 or more homes in the Hartford Heights development east of Hartford. Roofs were removed from houses and garages were destroyed. The tornado uprooted large trees. Many of the homes had to be destroyed afterwards due to the amount of damage they received.
- Jul 13, 1997Hail$2.0 million
National Weather Service narrative
Large hail fell in an area about 5 miles wide and at least 15 miles long from west to northeast of Sioux Falls. Severe damage to vehicles occurred, including several which sustained total damage. homes and other buildings had windows broken and siding and roofs severely damaged. At least one satellite dish was damaged at the EROS Data Center and the building sustained other damage as well. Crops were severely damaged with many acres totally destroyed.
- Jun 12, 2001Hail$2.0 million
- 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 Sioux Falls, 7.3 miles from the city centre, with records from 1932.
- All-time high
- 110°F2 times, most recently Jun 21, 1988
- All-time low
- −36°FJan 19, 1970
- Warmest night
- 81°F3 times, most recently Aug 22, 2023
- Coldest day
- −17°FFeb 8, 1933
- Wettest day
- 5.44 inAug 7, 2022
- Snowiest day
- 18.1 inMar 10, 1956
- Hottest year
- 2012mean 50.6°F
- Coldest year
- 1950mean 42.3°F
- Wettest year
- 201939.54 in
- Driest year
- 197611.42 in
- Snowiest season
- 94.7 in1968-69
Median first snow
November 6
Earliest: September 25, 1939
Median last snow
April 11
Latest: May 18, 1968
0 of 93 winters had no measurable snow.
Station Sioux Falls (USW00014944), 1,495 ft elevation, 7.3 miles from the city centre. Daily records from 1932 to October 27, 2026; 100.0% 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
17 since 1953. The most recent: Severe Storms, Straight-Line Winds, and Flooding, August 15, 2024.
Declarations for Minnehaha County.
| Aug 15, 2024 | Flood | DR-4807-SD |
| Jun 29, 2022 | Severe Storm | DR-4656-SD |
| Apr 5, 2020 | Biological | DR-4527-SD |
| Mar 13, 2020 | Biological | EM-3475-SD |
| Nov 18, 2019 | Severe Storm | DR-4469-SD |
| Jun 7, 2019 | Flood | DR-4440-SD |
| Jul 28, 2014 | Flood | DR-4186-SD |
| May 10, 2013 | Severe Storm | DR-4115-SD |
| Sep 23, 2010 | Severe Storm | DR-1938-SD |
| Sep 10, 2005 | Coastal Storm | EM-3234-SD |
| Jul 20, 2004 | Severe Storm | DR-1531-SD |
| Apr 7, 1997 | Flood | DR-1173-SD |
| Feb 28, 1997 | Severe Storm | DR-1161-SD |
| Jan 10, 1997 | Severe Storm | DR-1156-SD |
| Jul 19, 1993 | Severe Storm | DR-999-SD |
| Jun 17, 1976 | Drought | EM-3015-SD |
| Apr 18, 1969 | Flood | DR-257-SD |
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 USW00014944.
- 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.