Red Flag Warning in effect from August 23, 5:00 am until August 24, 5:00 pm

August 22, 2020

The National Weather Service has issued a Red Flag Warning in effect from August 23, 5:00 am until August 24, 5:00 pm. A Red Flag Warning means that critical fire weather conditions are expected during this time frame for dry lightning and gusty, erratic outflow winds over existing wildfires. The affected area includes higher terrain areas of Marin, Napa, Sonoma counties.

The strongest thunderstorms are anticipated to develop Sunday evening through Monday morning. Additional isolated to scattered dry thunderstorms are forecast to develop over land from early Sunday to late Monday.

Weaker isolated storms are possible off the coast as early as Saturday.

Lightning will likely spark new fires across the region, including remote areas. The erratic gusty winds that are predicted to accompany this weather system may lead to potentially dangerous and unpredictable fire behavior on existing wildfires while additional lightning strikes may result in new wildfire starts. Any fires that develop will likely spread rapidly.

The following land use restrictions are in effect for the Marin Municipal Water District, Mount Tamalpais State Park, and The Point Reyes National Seashore during the Red Flag conditions.

  • Mt. Tam will be under total closure.
  • Roads north of Panoramic Highway are closed to motor vehicle traffic on Pantoll Road and Ridgecrest Boulevard.  All park use permits north of Panoramic Highway are suspended, including filming.
  • Closures at Sky Oaks, Natalie Coffin Green Park (Ross), and Leo Cronin Parking Lot, all Marin Municipal Water District Land is under total closure.
  • Point Reyes National Seashore (National Park Service) is under total closure.
  • All open burning and burn permits are suspended on public lands.

Residents are advised to exercise extreme caution during the Red Flag Warning because a simple spark could cause a major wildfire, including the use of equipment and machinery as well as smoking.

We are aware of heavy smoke conditions throughout Marin County. Please only call 9-1-1 to report a suspected fire (e.g., see active flames), but not to report smoke.

Click here for tips on reducing your exposure to wildfire smoke.

3 Things You Can Do Now to Prepare:

1) Make sure you have a "Grab and Go Bag" for everyone in your family - including your pets! 

The 5 Ps of Evacuation are:

  • People and, if safely possible, pets and other animals/ livestock 
  • Prescriptions, with dosages; medicines; medical equipment; batteries or power cords; eyeglasses; and hearing aids
  • Papers, including important documents (hard copies and/or electronic copies saved on external hard drives or portable thumb drives)
  • Personal needs—such as clothes, food, water, first aid kit, cash, phones, and chargers— and items for people with disabilities and others with access and/or functional needs, such as older adults, children, and those with Limited English Proficiency
  • Priceless items, including pictures, irreplaceable mementos, and other valuables

2) Sign up for Public Safety Alerts

3) Review your evacuation route and how to prepare for an evacuation here.

Please be extremely cautious during periods of high fire danger. It's important all residents and visitors take steps to prevent wildfires. One less spark could mean one less wildfire.

  • Never mow or trim dry grass on a Red Flag Warning Day. 
  • Never use lawn mowers in dry vegetation.
  • Clear dead weeds and vegetation around your home.
  • Remove leaves and needles from gutters.
  • Trim tree branches 10 feet from the ground.
  • If you are driving, never pull over in dry grass.
  • Ensure trailer chains don't drag on the ground.
  • If you smoke, make sure cigarette butts are properly extinguished.
  • Report any suspicious activities to prevent arson. Call the Police Department non-emergency line 24/7: 415-389-4100

Preventing Wildfires is a Family Affair: Please talk to your kids today about not playing with matches and fireworks! Our lives are literally at stake.Learn more


City staff will post notices to indicate that curbside parking in both directions will be restricted on Miller Avenue from Millwood to Willow Street. 

In August 2019, the City Council unanimously accepted the recommendation of Public Safety Officials to implement the restrictions on parking on days of extreme fire hazard, also known as Red Flag days. Parking is restricted on Miller Avenue on Red Flag Days because Miller Avenue is designated as a primary evacuation route. The aim of the restrictions is to aid in both evacuation and firefighting efforts in the event of an emergency. Learn more about evacuation preparedness.

Mill Valley staff will use temporary barricades to indicate the parking restrictions until permanent signs are in place and permits issued.

Additional Information:

Check the National Weather Service for Red Flag Days

Miller Ave Parking Restrictions Staff Report – August 5, 2019

Questions may be directed to the Mill Valley Police Department at 415-389-4100 or email