Dome Fire Reaches 6,632 Acres in Yosemite, 40% Contained as of Oct. 3
The Dome Fire has burned 6,632 acres in Yosemite National Park and is 40% contained as of Oct. 3, with 765 personnel assigned; Glacier Point Road stays closed.
CA
In 2025, fire departments serving Alpine responded to 92 fire and hazmat incidents — from cooking fires to gas leaks to a single $50K building blaze. Here's the full picture.
Passenger vehicle fire lead by count. Building fires lead by dollars. Together the top five categories make up about 52% of all calls.
Jan peaks. Sep dips. Watch for the typical fall climb starting in October.
414 incidents 2021–2025. Peak year was 2024. $3.8M cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 94 | — | |
| 2022* | 49 | — | |
| 2023 | 72 | — | |
| 2024 | 107 | +48.6% | |
| 2025 | 92 | -14.0% |
* Well below Alpine's usual volume. That almost always means one or more departments didn't submit a full year to NFIRS, not that fires dropped, so no year-over-year change is shown for it.
For the 5 building fires Alpine departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 106 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 | Engine area, running gear, wheel area | 40 | 37.7% | |
| 2 | Undetermined | 21 | 19.8% | |
| 3 | Open area - outside; included are farmland, field | 8 | 7.5% | |
| 4 | Outside area, other | 5 | 4.7% | |
| 5 | Wildland, woods | 4 | 3.8% | |
| 6 | Cooking area, kitchen | 3 | 2.8% | |
| 7 | Storage: supplies or tools; dead storage | 3 | 2.8% | |
| 8 | Operator/passenger area of transportation equip. | 3 | 2.8% | |
| 9 | Other | 2 | 1.9% | |
| 10 | Laundry area, wash house (laundry) | 2 | 1.9% | |
| 11 | All other areas | 15 | 14.2% |
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 Alpine mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 67 | 63.2% | |
| 2 | Heat from powered equipment, other | 13 | 12.3% | |
| 3 | Heat source: other | 4 | 3.8% | |
| 4 | Arcing | 4 | 3.8% | |
| 5 | Heat, spark from friction | 3 | 2.8% | |
| 6 | Spark, ember or flame from operating equipment | 2 | 1.9% | |
| 7 | Hot or smoldering object, other | 2 | 1.9% | |
| 8 | Lightning | 2 | 1.9% | |
| 9 | Radiated, conducted heat from operating equipment | 1 | 0.9% | |
| 10 | Heat from other open flame or smoking materials | 1 | 0.9% | |
| 11 | All other sources | 7 | 6.6% |
Largest single-incident property losses reported by Alpine departments in 2025. These 8 fires alone account for 92% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $50,000 | Building fires | Significant | Investigated |
| 2 | $48,160 | Passenger vehicle fire | Significant | Investigated |
| 3 | $37,000 | Passenger vehicle fire | Significant | Investigated |
| 4 | $35,000 | Passenger vehicle fire | Significant | Investigated |
| 5 | $30,000 | Passenger vehicle fire | Significant | Investigated |
| 6 | $27,000 | Passenger vehicle fire | Significant | Investigated |
| 7 | $15,000 | Passenger vehicle fire | Significant | Investigated |
| 8 | $15,000 | Building fires | Significant | Investigated |
Per-capita rates let us compare apples to apples. Alpine sits below the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 995,371 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2003 | Recreation and ceremony | 280,059 | 10.0 mi | |
| 2007 | Power generation/transmission/distribution | 197,990 | 16.2 mi | |
| 2007 | Recreation and ceremony | 90,440 | 19.4 mi | |
| 2002 | Equipment and vehicle use | 61,690 | 20.8 mi | |
| 2003 | Arson/incendiarism | 56,427 | 30.6 mi | |
| 2007 | Other causes | 49,390 | 30.6 mi | |
| 2003 | Missing data/not specified/undetermined | 47,921 | 19.2 mi | |
| 1993 | Missing data/not specified/undetermined | 20,768 | 25.0 mi | |
| 2003 | Natural | 19,575 | 40.7 mi | |
| 2006 | Recreation and ceremony | 16,677 | 8.1 mi | |
| 2020 | Missing data/not specified/undetermined | 16,390 | 6.8 mi | |
| 1996 | Recreation and ceremony | 14,720 | 14.7 mi |
Top 3 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.
Six California cities with population within ±25% of Alpine. Useful comparison targets — same state, similar size, different fire profile.
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.