California red flag warnings
There are no red flag warnings in California right now. The last one was issued on November 7, 2026.
Warm temperatures, very low humidity and strong winds will allow any fire to spread rapidly.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
Active red flag warnings in California
None right now. Other active alerts in California: 17 (see the California alerts page).
Red Flag Warnings in California by year
California averaged 87.3 red flag warnings per year from 2016 to 2025, and has had 61 so far in 2026. The most recent was issued on November 7, 2026.
Counties with the most red flag warnings
| County | 2016–2025 |
|---|---|
| Modoc County | 192 |
| Siskiyou County | 114 |
| Sierra County | 92 |
| Lassen County | 81 |
| Ventura County | 75 |
| Sacramento County | 70 |
| Colusa County | 69 |
| Butte County | 69 |
| Yuba County | 69 |
| Sutter County | 69 |
What a red flag warning means
A red flag warning means critical fire weather conditions are occurring or will develop shortly. Fires that start, whether from a spark, a cigarette or equipment, can grow quickly and become difficult to control. Burn bans are often in effect during red flag warnings.
More about red flag warnings and the national map →
What to do
- Avoid outdoor burning and anything that can create sparks.
- Do not park on dry grass; hot exhaust systems can ignite it.
- Have an evacuation plan and a go-bag if you live near wildland areas.