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 Portola responded to 38 fire and hazmat incidents — from cooking fires to gas leaks to a single $20K building blaze. Here's the full picture.
Unauthorized burning lead by count. Building fires lead by dollars. Together the top five categories make up about 69% of all calls.
Jun peaks. Jul dips. Watch for the typical fall climb starting in October.
200 incidents 2021–2025. Peak year was 2021. $1.2M cumulative property loss. 1 civilian deaths.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 55 | — | |
| 2022 | 34 | -38.2% | |
| 2023 | 29 | -14.7% | |
| 2024 | 44 | +51.7% | |
| 2025 | 38 | -13.6% |
For the 3 building fires Portola departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 36 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 | Undetermined | 11 | 30.6% | |
| 2 | Open area - outside; included are farmland, field | 5 | 13.9% | |
| 3 | Engine area, running gear, wheel area | 4 | 11.1% | |
| 4 | Exterior balcony, unenclosed porch | 2 | 5.6% | |
| 5 | Outside area, other | 2 | 5.6% | |
| 6 | Other | 1 | 2.8% | |
| 7 | Entrance way, lobby | 1 | 2.8% | |
| 8 | Common room, den, family room, living room, lounge | 1 | 2.8% | |
| 9 | Function area, other | 1 | 2.8% | |
| 10 | Bedroom - < 5 persons; included are jail or prison | 1 | 2.8% | |
| 11 | All other areas | 7 | 19.4% |
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 Portola mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 19 | 52.8% | |
| 2 | Lightning | 3 | 8.3% | |
| 3 | Spark, ember or flame from operating equipment | 2 | 5.6% | |
| 4 | Arcing | 2 | 5.6% | |
| 5 | Cigarette lighter | 2 | 5.6% | |
| 6 | Heat from direct flame, convection currents | 2 | 5.6% | |
| 7 | Heat source: other | 1 | 2.8% | |
| 8 | Radiated, conducted heat from operating equipment | 1 | 2.8% | |
| 9 | Molten, hot material | 1 | 2.8% | |
| 10 | Hot ember or ash | 1 | 2.8% | |
| 11 | All other sources | 2 | 5.6% |
Largest single-incident property losses reported by Portola departments in 2025. These 8 fires alone account for 100% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $20,000 | Building fires | Significant | Investigated |
| 2 | $4,000 | Building fires | Significant | Investigated |
| 3 | $500 | Natural vegetation fire, other | Significant | Investigated |
| 4 | $100 | Forest, woods or wildland fire | Significant | Investigated |
| 5 | $100 | Chimney or flue fire, confined to chimney or flue | Significant | Investigated |
| 6 | $25 | Chimney or flue fire, confined to chimney or flue | Significant | Investigated |
| 7 | $5 | Trash or rubbish fire, contained | Significant | Investigated |
| 8 | $5 | Brush, or brush and grass mixture fire | Significant | Investigated |
Per-capita rates let us compare apples to apples. Portola sits above the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 1,205,444 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2020 | Natural | 318,776 | 23.4 mi | |
| 2017 | Equipment and vehicle use | 83,599 | 24.4 mi | |
| 2012 | Recreation and ceremony | 75,431 | 44.1 mi | |
| 2007 | Equipment and vehicle use | 64,994 | 33.9 mi | |
| 2000 | Railroad operations and maintenance | 55,261 | 45.2 mi | |
| 2019 | Missing data/not specified/undetermined | 54,608 | 18.9 mi | |
| 2018 | Arson/incendiarism | 51,386 | 45.6 mi | |
| 2008 | Natural | 47,647 | 48.4 mi | |
| 1999 | Natural | 47,133 | 34.2 mi | |
| 2020 | Natural | 47,029 | 18.8 mi | |
| 1994 | Arson/incendiarism | 46,800 | 21.2 mi | |
| 2017 | Arson/incendiarism | 41,545 | 45.1 mi |
Top 5 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 Portola. Useful comparison targets — same state, similar size, different fire profile.
1 departments report to NFIRS for incidents in Portola.
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.