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The original item was published from 10/27/2023 12:11:00 PM to 10/30/2023 12:00:01 AM.

News Flash

Emergency Preparedness

Posted on: October 26, 2023

[ARCHIVED] Fire Weather Watch Upgraded to Red Flag Warning Through Sunday, October 29, 2023

Red Flag Warning in effect from October 28, 05:00 PM PDT until October 29, 05:00 PM PDT

Red Flag Warning in effect from October 28, 05:00 PM PDT until October 29, 05:00 PM PDT

UPDATE as of 11:25 AM on Friday, October 27, 2023 

Fire Weather Watch has been upgraded to a Red Flag Warning through Sunday, October 29th at 5:00 PM. Red Flag Warning Days give us a warning that the weather conditions are right for extreme wildfire events. Please take caution and listen to local law enforcement for instructions & prepare to act if a wildfire starts. 

Learn more about what to do during Red Flag Days by watching this short video: 




Fire Weather Zone 503 Sonoma Coastal Range, Fire Weather Zone 505 Coastal North Bay Including Point Reyes National Seashore, Fire Weather Zone 506 North Bay Interior Valleys, Fire Weather Zone 509 San Francisco Peninsula Coast and Fire Weather Zone 510 East Bay Interior Valleys.



North 15 to 25 mph with gusts up to 35 mph.



 Minimum relative humidity as low as 15 to 35 percent on Saturday and Sunday. Poor relative humidity recoveries in the 25 to 35 percent range for the interior valleys. For the coastal regions, moderate humidity recoveries of 50 to 70 percent expected, which will occur Saturday evening before further drying overnight.



The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity. Outdoor burning is not recommended.



A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.



View Fire Weather Zones:

View updated weather forecast:



The National Weather Service issues Red Flag Warnings & Fire Weather Watches to alert fire departments of the onset, or possible onset, of critical weather and dry conditions that could lead to rapid or dramatic increases in wildfire activity.

A Red Flag Warning is issued for weather events which may result in extreme fire behavior that will occur within 24 hours. A Fire Weather Watch is issued when weather conditions could exist in the next 12-72 hours. A Red Flag Warning is the highest alert. During these times extreme caution is urged by all residents, because a simple spark can cause a major wildfire. A Fire Weather Watch is one level below a warning, but fire danger is still high. 

What To Do During A Fire Weather Watch?

  1. Stay informed with emergency alerts. Sign up for Alert Marin and Nixle
  2. Review evacuation maps and checklists.
  3. Assemble a "Grab and Go" bag for yourself, your family, and your pets.
  4. Stay fire vigilant. One less spark is one less wildfire. Watch Video

What To Do During A Red Flag Warning?

  1. Review your wildfire evacuation checklist.
  2. Walk around the outside of your house and clear anything combustible, including:
    • Leaves from roofs, gutters, and around the base of walls
    • Wicker lawn furniture and all cushions
    • Wood piles or debris near structures
    • Flammable doormats
  3. Ensure your family and pets are prepared, and keep your evacuation go-kits nearby.
  4. Ensure your car has a full tank of gas or is fully charged.
  5. Ensure your cell phone is charged, and monitor phones for emergency alerts.
  6. Keep hydrated – it’s usually warm and dry!

Activities To Avoid

  1. Don’t use barbecues or fire-pits outdoors.
  2. Don’t use any source of heat or open flame outdoors, including, cooking, using power tools (gas or electric), or mowers.
  3. Don’t smoke outdoors.
  4. Avoid driving or parking in dry grass or vegetation.
  5. Avoid closed areas and be alert while visiting (open) public lands where wildfires might occur.

Evacuation Preparedness Resources 

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