Wildfires in the Sierra Nevada Today
Live active-fire map for the Sierra Nevada from NASA FIRMS satellite data. Where fires are burning right now — updated hourly. Typical fire season: July–October.
6 km/h from the S — carrying smoke towards the N.
13°C · 79% humidity
Air quality Fair
PM2.5 9.7 µg/m³ this hour · EU AQI 29 · US AQI 55
Air quality is acceptable for almost everyone.
Wind direction only — not a smoke dispersion forecast. Air quality is modelled, not a street-level measurement. Weather from MET Norway; air quality from Open-Meteo (Copernicus CAMS). Both CC BY 4.0.
2 active fires in the Sierra Nevada
Neighbouring detections grouped into single incidents, largest first.
- 119 MW39 km NW of Fresno, California3 detections~3.3 km acrosslast seen 2026-10-22 20:34 UTC37.051, -119.972
- 218 MW23 km NW of Fresno, California4 detections~10.4 km acrosslast seen 2026-10-22 20:34 UTC36.888, -119.962
About this wildfire map
This map uses NASA's Fire Information for Resource Management System (FIRMS), which publishes active-fire detections from the VIIRS and MODIS instruments aboard NASA and NOAA satellites. Each dot is a thermal “hotspot” where the sensor measured fire-level heat, usually within 3 hours of the satellite passing overhead. It shows where fires are actively burning — not fire perimeters or evacuation zones. For safety and evacuation information, always follow your local emergency services.