County of Marin Health and Human Services

Emergency Information

Marin County Office of Emergency Services (OES) and Marin County Public Health are monitoring current weather conditions.  On Sunday, August 14th, 2022, the National Weather Service (NWS) issued an Excessive Heath Watch for Tuesday, August 16th for North Bay interior mountains. NWS has three levels of heat alerts.  From lowest to highest level they are: Heat Advisory, Excessive Heat Watch, and Excessive Heat Warning. The current forecast does not meet Excessive Heat Event Activation Criteria.  Marin County residents are advised to prepare for heat events and to learn more about staying cool in warm weather

As we settle into summer and heat waves sweep across California, wildfire safety should be at the top of the mind. Be safe and be fire adapted. Visit Fire Safe Marin and take action to prepare yourself, harden your home, and create a fire-smart yard. Marin Center for Independent Living (MCIL) offers free emergency planning and resources for Marin residents living with disabilities.  Visit their Powered & Prepared site to learn more.

Visit Marin's Public Emergency Portal to stay up-to-date:

The COVID-19 State of Emergency order remains active in California.  For more information about the County's pandemic response, visit

On August 1, 2022, Governor Newsome proclaimed a state of emergency to support the state's response to monkeypox. For more information about the County's response to monkeypox, visit

Public Health Emergencies

Community Notice 

Marin Health and Human Services (HHS) strongly recommends signing up for AlertMarin and Nixle to make sure you receive phone calls and/or texts with critical information in the event of an immediate threat to life or property.

Learn more about preparing for emergencies and disasters at

For Emergency Assistance Dial 911

Marin Sheriff Emergency Information
Marin County Emergency Preparedness Resources

Excessive Heat Event

The County of Marin will work with local cities and towns to support daytime cooling centers during excessive heat events. Marin County Public Health recommends opening Cooling Center on Day 2 of an Excessive Heat Event.

Excessive Heat Event Activation Criteria

  • Forecasted temperature is 94° or higher for at least 2 days   
  • NWS Excessive Heat Warning issues for more than 3 days.  NWS issues an Excessive Heat Warning within 12 hours of the onset of extremely dangerous heat conditions. The general rule of thumb for this Warning is when the maximum heat index temperature is expected to be 105° or higher for at least 2 days and nighttime air temperatures will not drop below 75°
  • CAISO issues a Stage 3 Electrical Emergency or rotating outages during an Excessive Heat Event

Severe Weather Emergency Shelter (SWES)

Current Service Model 

Given the need to protect against the spread of COVID, it is not feasible to offer severe weather emergency shelter per our usual congregate model. Marin County will offer motel vouchers, services and meals at a single motel.As in previous years, activation will be triggered by weat her criteria identified by the Marin County Department of Health and Human Services (below).

Marin County’s Office of Emergency Services (OES) is the lead agency monitoring life-threatening events, including extreme temperatures. OES, the Public Health Officer, and the Medical Health Operational Area Coordinator (MHOAC) monitor weather indicators using data from the National Weather Service and determine if activation criteria is met.  

A decision on whether or not to activate the shelter will be made by 3:00 p.m. for activation the following day.  In addition to sending an email to an extensive stakeholder list, we will also post activation plans to this website and will also provide a recorded message at:  415-473-6100.  The Homeless Outreach Coordinator will also send a group text message to the county’s outreach teams.

Referrals for a placement at the severe weather emergency shelter will be made by Marin County homeless service provider partners:  

  • Homeward Bound
  • Downtown Streets Team  
  • Ritter Center 
  • St. Vincent de Paul Society of Marin 
  • Community Action Marin: CARE Teams  
  • Law enforcement and other first responders should coordinate with the above referral partners regarding bed availability daily. 

Transportation will be supported through bus vouchers and outreach staff.

This is a low-barrier shelter, meaning that anyone will be welcome to stay as long as they agree to be respectful of other shelter residents and staff and follow a behavioral code of conduct (e.g. one person per room, no illegal activity, etc.).

While many factors affect a person’s ability to remain stably housed—employment, physical health, substance use—these factors are all more effectively addressed when a person has a home. Learn more about Housing First in Marin County at

SWES Activation Criteria (Updated November 19, 2021) 

  • New. Forecasted rainfall for at least 72 hours with greater than 1" rain per day (average), or
  • New. Flash flood watch / warning (partial activation | targeted outreach), or
  • Forecast temperatures to drop below an average nighttime low* of 38 degrees, and conditions are projected for a minimum of 3 days, or   
  • Forecast temperatures to drop below an average nighttime low* of 45 degrees for two consecutive days with hazardous conditions (e.g. greater than 1” rain, flash flood watch/warning, wind chills or extreme temperature fluctuations), or 
  • Forecast temperatures to drop below an average nighttime low* of 40 degrees with hazardous conditions (e.g. greater than 1” rain, flash flood watch/warning, wind chills or extreme temperature fluctuations)
  • Hazardous air quality (AQI > 300) 

*Average nighttime low determined by averaging the hourly temperatures between 11 p.m. and 5 a.m.  

    Page last reviewed: June 21, 2022

    About this Page

    In the event of a disaster or emergency affecting the Marin HHS community, this site will provide up-to-date information and important instructions pertaining to the situation.