Custer County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Custer 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.

Every large fire

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

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.

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

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.

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.

Every earthquake of magnitude 4 or more within 50 miles

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

Mapped by NE Univ of NE Lincoln (7).

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.

More event types since 1996

Costliest events since 1996

1. Jul 1, 2012Drought, Custer$30.0 million
   National Weather Service narrative

   Severe drought conditions (D2), which began the month of June, intensified to extreme drought conditions (D3) and to an exceptional drought (D4) in most of the eastern half the county by the end of the month. Pastures that make up close to 63 percent of the land use in Custer County (2007 Census USDA) was rated 69% poor or very poor. The lack of rain limited grazing capacity and created increased sales of livestock as the departure from normal precipitation reached below 3 inches in the east. Crop producers began silage of dryland corn. On July 23rd all counties in Nebraska were approved for CRP Emergency Haying and Grazing. The drought continued into August.

2. Oct 31, 2000Tornado$2.0 million
   National Weather Service narrative

   The tornado moved out of Dawson county into south central Custer county 7 miles south southwest of Oconto. The tornado traveled across open rangeland until destroying a modular home 1 mile south of Oconto. The tornado then moved directly through the small community of Oconto producing extensive damage. Every building along main street was either damaged or destroyed. A community center was destroyed while 19 children and 4 adults were in the basement. Over half the homes in the small town suffered minor to major damage. The community was declared a disaster areas by the governor. The tornado knocked down a power line 2 miles north of Oconto before lifting.

3. Nov 27, 2005Blizzard, Custer$1.8 million
   National Weather Service narrative

   A very strong low pressure system moved out of Colorado the Sunday after Thanksgiving and intensified as it moved northeast across the Western and Northern Plains hampering travel on one of the busiest travel weekends of the year. Very warm air wrapped up into the system ahead of the storm causing freezing rain to develop across portions of Boyd, Holt, Rock, Loup, Garfield, Wheeler, and northeast Custer Counties Sunday afternoon, November 27th, while snow fell across the remainder of the area. By Sunday night, the freezing rain switched over to snow as cold air plunged into western and north central Nebraska. Winds increased significantly Sunday night into Monday morning with zero…

4. Apr 12, 2023Wildfire, Custer$1.5 million
   National Weather Service narrative

   Fire initiated along highway 2 in the vicinity of the Cooksley Ranch, 6 miles northwest of Anselmo during the morning hours of April 12th. Known as the Cooksley Complex Fire, strong southerly winds pushed the fire to the north and north northwest during the afternoon hours of the 12th. Dry lightning and a wind shift forced the fire east on the 13th. By the time the fire was contained on the morning of April 14th, it had consumed approximately 37000 acres of rangeland. A home was destroyed at the McGinn Ranch and a bunkhouse was lost as well. Several calves were also lost in the fire in addition to outbuildings.

5. Oct 31, 2000Tornado$1.0 million
   National Weather Service narrative

   The tornado touched down 7 miles southeast of Broken Bow and traveled 12 miles north northeast across farm and rangeland. Initial damage occurred at touchdown with a modular home destroyed. Then over the next 2 miles 3 farmsteads were struck. The first suffered heavy damage to all buildings including the house. At the second farmstead a modular home and several buildings were completely destroyed. The third farmstead suffered extensive damage to the outbuildings and minor damage to the house. The tornado then moved across highway 2 and destroyed several farm building 4 miles east of Broken Bow. Then as the tornado moved across highway 70 another farmstead was struck with several…

6. Mar 14, 2019Flood$1.0 million
   National Weather Service narrative

   Historical bridge 1 mile south of Sargent destroyed by Ice flows along the Middle Loup River.

7. Mar 14, 2019Flood$500,000
   National Weather Service narrative

   Bridge abutment crossing the South Loup River on Highway 21 northeast of Oconto destroyed.

8. Mar 13, 2019Flood$500,000
   National Weather Service narrative

   Custer county EM reports widespread flooding in Anselmo.

9. Mar 13, 2019Flood$500,000
   National Weather Service narrative

   Custer county emergency management reports extensive flooding in Sargent.

10. Mar 13, 2019Flood$500,000
    National Weather Service narrative

    Water reported over the road on Highway 40 from the junction of highway's 40 and 47 south of Arnold, to Arnold. Ditches are full with several secondary roads washed out in the Callaway area.

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.

All-time high

116°FJul 11, 1954

All-time low

−42°FJan 23, 1915

Warmest night

87°FJul 2, 1896

Coldest day

−12°FFeb 12, 1905

Wettest day

4.72 inAug 10, 1968

Snowiest day

19.0 inJan 19, 2023

Hottest year

1900mean 53.8°F

Coldest year

1996mean 44.3°F

Wettest year

197735.19 in

Driest year

19558.59 in

Snowiest season

65.8 in1983-84

Station Broken Bow 2 W (USC00251200), 2,504 ft elevation, 0.5 miles from the population centre. Daily records from 1894 to August 31, 2026; 97.6% 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.

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.

Neighbouring counties

• 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 USC00251200.
• 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.