Red Flag Warnings Blanket Five Northern Rockies and Plains States
Critical fire weather triggered Red Flag Warnings across Montana, Wyoming, Idaho, and the Dakotas on Sept. 10, capping an active season in the region.
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In 2025, fire departments serving Spearfish responded to 76 fire and hazmat incidents — from cooking fires to gas leaks to a single $500K building blaze. Here's the full picture.
Vehicle accident, general cleanup lead by count. Building fires lead by dollars. Together the top five categories make up about 59% of all calls.
Jun peaks. Apr dips. Watch for the typical fall climb starting in October.
527 incidents 2021–2025. Peak year was 2021. $1.6M cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 156 | — | |
| 2022 | 107 | -31.4% | |
| 2023 | 104 | -2.8% | |
| 2024 | 84 | -19.2% | |
| 2025 | 76 | -9.5% |
For the 10 building fires Spearfish departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 121 building fires investigators classified across 2021–2025. The room or location where ignition occurred — kitchens, bedrooms, exterior, vehicle areas — tells you where to focus prevention.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Open area - outside; included are farmland, field | 29 | 24.0% | |
| 2 | Highway, parking lot, street: on or near | 16 | 13.2% | |
| 3 | Engine area, running gear, wheel area | 13 | 10.7% | |
| 4 | Wildland, woods | 12 | 9.9% | |
| 5 | Outside area, other | 11 | 9.1% | |
| 6 | Operator/passenger area of transportation equip. | 5 | 4.1% | |
| 7 | Laundry area, wash house (laundry) | 4 | 3.3% | |
| 8 | Vehicle storage area; garage, carport | 4 | 3.3% | |
| 9 | Exterior balcony, unenclosed porch | 4 | 3.3% | |
| 10 | Vehicle area, other | 3 | 2.5% | |
| 11 | All other areas | 20 | 16.5% |
NFIRS Heat Source (HEAT_SOURC) — the physical thing that started it. Spark or ember from operating equipment, an open flame, smoking materials, or hot embers from a fireplace are the leading culprits nationwide. Here's the Spearfish mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 33 | 27.3% | |
| 2 | Lightning | 14 | 11.6% | |
| 3 | Radiated, conducted heat from operating equipment | 10 | 8.3% | |
| 4 | Flying brand, ember, spark | 9 | 7.4% | |
| 5 | Heat from powered equipment, other | 7 | 5.8% | |
| 6 | Arcing | 7 | 5.8% | |
| 7 | Hot ember or ash | 7 | 5.8% | |
| 8 | Heat, spark from friction | 6 | 5.0% | |
| 9 | Cigarette | 4 | 3.3% | |
| 10 | Chemical reaction | 4 | 3.3% | |
| 11 | All other sources | 20 | 16.5% |
Largest single-incident property losses reported by Spearfish departments in 2025. These 3 fires alone account for 100% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $500,000 | Building fires | Major | Investigated |
| 2 | $200,000 | Building fires | Significant | Investigated |
| 3 | $25,000 | Building fires | Significant | Investigated |
Per-capita rates let us compare apples to apples. Spearfish sits below the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 189,575 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2012 | Power generation/transmission/distribution | 61,416 | 46.1 mi | |
| 1992 | Missing data/not specified/undetermined | 33,000 | 49.9 mi | |
| 2002 | Power generation/transmission/distribution | 12,443 | 44.9 mi | |
| 2016 | Natural | 12,347 | 45.0 mi | |
| 2002 | Missing data/not specified/undetermined | 11,589 | 11.3 mi | |
| 2000 | Other causes | 6,500 | 45.7 mi | |
| 2007 | Natural | 5,000 | 47.5 mi | |
| 2004 | Missing data/not specified/undetermined | 4,700 | 25.2 mi | |
| 2005 | Natural | 3,959 | 29.3 mi | |
| 2006 | Natural | 3,204 | 29.9 mi | |
| 2009 | Debris and open burning | 3,175 | 37.3 mi | |
| 1998 | Equipment and vehicle use | 3,100 | 40.4 mi |
Top 1 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.
| # | ZIP | 5-yr incidents | |
|---|---|---|---|
| 1 | 57783 | 526 |
Six South Dakota cities with population within ±25% of Spearfish. Useful comparison targets — same state, similar size, different fire profile.
1 departments report to NFIRS for incidents in Spearfish.
A 30-minute weekend can cut your home's exposure substantially. These four checklists are a good starting point.
Numbers reflect incidents reported by participating fire departments to the National Fire Incident Reporting System (NFIRS) Public Data Release for calendar year 2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Per-capita comparisons use 2023 ACS population estimates. Wildland fire data complements NFIRS with NIFC and USFS perimeters. Active-fire counts come from a dated NIFC snapshot, not a live feed.