CAL FIRE is urging residents to take immediate precautions as the National Weather Service has issued a Red Flag Warning in effect from early Wednesday, June 10 through late afternoon Thursday, June 11, 2026, due to a combination of gusty north winds, critically low humidity, and warm temperatures that could contribute to rapid wildfire growth.
Forecasted conditions include north winds of 15 to 25 mph with gusts reaching 30 to 40 mph, particularly within the Northern Sacramento Valley, the North Bay Interior Mountains and East Bay Hills. Relative humidity is expected to drop to between 9 and 15 percent during the day, creating an environment where any fire start could spread quickly and become difficult to control.
The highest fire threat is expected along and west of the Interstate 5 corridor in the Sacramento Valley.
“Red Flag Warnings signal some of the most dangerous fire weather conditions we experience in California,” said Chief Daniel Berlant, California State Fire Marshal. “With dry vegetation, strong winds, and low humidity, a small spark can rapidly become a large wildfire. We are asking everyone to be vigilant and take steps now to reduce wildfire risk around their homes and communities.”
Do an Ember Check Before the Wind Arrives
During Red Flag conditions, wind-driven embers can travel miles ahead of a wildfire and ignite homes and structures. CAL FIRE encourages residents to conduct a quick “Ember Check” and prepare their property by following these simple actions:
Close It
- Close all windows and exterior doors.
- Close garage doors.
- Close pet doors and other openings.
- Ensure vents have no more than 1/8 inch mesh.
Clear It
- Remove leaves, pine needles, and debris from roofs and gutters.
- Clear combustible materials from around structures.
Move It
- Move patio furniture, doormats, firewood, propane tanks, cardboard boxes, garbage bins and other flammable items away from the home.
Additional Safety Reminders
- Avoid outdoor burning and activities that may create sparks.
- Properly secure trailer chains and avoid parking vehicles on dry grass.
- Keep cell phones charged and ensure emergency notifications are enabled.
- Review evacuation plans and prepare a Go Bag with essential items.
- Sign up for emergency alerts.
Wildfires can occur with little warning, making preparedness one of the most important steps Californians can take to protect their families, homes, and communities. Taking action before a wildfire starts can help reduce risk and improve safety during an emergency. For preparedness resources, evacuation planning tools, defensible space guidance, and information on how to get Ready, Set, Go!, visit ReadyForWildfire.org.
