Red Flag Warning in Effect for 10 PM Saturday to 4 PM Sunday, November 11th.

The National Weather Service has issued a Red Flag Warning for the North Bay Mountains and other parts of the Bay Area, which is in effect from 10 PM Saturday to 4 PM Sunday, November 11th. 

A Red Flag Warning means that critical fire weather conditions are expected during this time frame with a combination of strong North East winds with gusts to 60 miles per hour and low relative humidity. This round of dry and gusty north to east winds will develop over interior northern California tonight into early Monday. The combination of gusty downslope winds, low humidity and very dry fuels will lead to extreme fire weather conditions on any current fires or new fire starts.

Residents are advised to exercise extreme caution during the Red Flag Warning. Land use restrictions are  likely in effect for area public open spaces. These include Marin Municipal Water District, Mount Tamalpais State Park, Marin Open Space, and the Point Reyes National Seashore. Check their websites for additional closure info.

Defensible space is essential to improve your home’s chance of surviving a wildfire. Learn more.

Here are a few helpful reminders and safety tips:  

Equipment Use Safety

  • Never mow or trim dry grass on a Red Flag Warning Day. (Mow before 10 a.m. on a day when it’s not hot and windy). 
  • Never use lawn mowers in dry vegetation. 
  • Spark arresters are required in wildland areas on all portable gasoline powered equipment.

Defensible Space

  • Residents should make sure they have 30 to 150 feet of defensible space around structures. 
  • Clear dead weeds and vegetation. 
  • Remove leaves and needles from gutters. 
  • Trim branches 6 to 8 feet from the ground. 


  • Never pull over in dry grass.
  • Ensure trailer chains don't drag on the ground.
  • Make sure your vehicle is properly maintained.
  • Have proper tire pressure to avoid driving on wheel rim.


  • Make sure cigarette butts are properly extinguished. 
  • Outdoor BBQ discouraged. 
  • Report any suspicious activities to prevent arson.

To register for emergency alerts, visit:

To learn more about preparing for wildfire please visit:

Know your wildfire risk and prepare an emergency plan in advance. Start your planning now: 

  • Develop an escape plan and discuss it with your family.
  • Walk your neighborhood before disaster strikes and look for alternate escape routes. Click here for the Guide to Mill Valley Steps, Lanes and Paths.
  • During high fire danger periods – monitor local news and be prepared to evacuate.
  • Identify important papers, photos and prepare an emergency supply kit.

Check the ReadyMarin website for planning and preparations guidelines and resources. 

Stay Informed:

Along with the City website, and alerts via Nixle, we use Social Media to keep the community informed. Follow us for updates:


City of Mill Valley Twitter

Mill Valley Police Department Twitter

City of Mill Valley Facebook