A mixture of warm temperatures, low humidity, and gusty winds means the area is at greater risk for fires to start and spread.
Winds in this region are expected to reach around 35 mph.
RELATED: Prepare NorCal: Disaster Preparedness Resources
The affected cities are:
- San Anselmo
- Forest Knolls
- Boyes Hot Springs
- St. Helena
- Calistoga
- Dixon
- Winters
- Angwin
- Middletown
- Guernville
- Healdsburg
- Cloverdale
- Geyersville
- Lower Lake
- Kelseyville
- Clear Lake
- Upper Lake
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