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Foster Fire (California)

Ended · 100% contained · 252 acres · started 2026-08-09 · updated 2026-08-15

This fire in numbers9 days
102Hectares252Acres9Days it lasted
Containment100%

Started on Aug 9, 2026.

United States todayLive
103Active773Hotspots 48h1.7 MHectares
Last 7 days · steadyHow many named wildfires were burning on each of the last 7 days. It rises when there are more than on the earlier days.
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Foster Fire (California) — Sentinel-2 true color Foster Fire (California) — Sentinel-2 SWIR (fuego) True color Fire (SWIR)
True color (left): as the eye sees it.
Infrared / SWIR (right): sees through smoke.

🟢 green = vegetation
🟤 red/brown = burned
🟠 orange = active fire

Imagery: Sentinel-2 (Copernicus). Drag to compare smoke vs. infrared.

Heat detections: NASA FIRMS (last 48h).

Quick facts

Location
2 Miles NW from Winterhaven, CA
Cause
Human
Personnel
7
Complexity
Type 4 Incident
Fuel
Brush (2 feet)
Behavior
Minimal, Smoldering
Jurisdiction
BIA · Federal land

Burning near Winterhaven, California, the active Foster Fire has consumed 252 acres since it was sparked by human activity on August 9, 2026. Over six days of burning, the blaze has maintained an approximate average daily growth of 42 acres per day, predominantly creeping through two-foot brush in Imperial County near Foster Road north of Indian Rock Road. Fire behavior is currently characterized as minimal and smoldering.

Federal land managed by the Bureau of Indian Affairs is impacted by the incident, which has reached 80 percent containment with a reported suppression cost of $86,000. A total of seven personnel operating under a Type 4 Incident management structure are assigned to the scene. The wider context shows that 2,909,844 hectares have burned nationally so far in 2026, tracking 47 percent below the two-decade average during a typical fire season that spans from June to October.

In context

This wildfire burned in California for 8 days. In total it burned about 252 acres — around 1.0 km².

In the Northern Hemisphere, wildfire activity usually peaks during the warm, dry months — roughly May through October.

The bigger picture in United States

Across United States, roughly 3,201,049 hectares have burned so far in 2026 — 42% below the two-decade average. Data from Copernicus GWIS.

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