News Flash Home
The original item was published from 12/17/2018 3:34:23 PM to 4/1/2019 12:10:00 AM.

News Flash

Santa Rosa Water

Posted on: December 17, 2018

[ARCHIVED] Increased Risk of Flooding and Mud, Debris Flows after 2017 Wildfires

Be Prepared

The City of Santa Rosa and the County of Sonoma encourage residents living in and around the areas burned by the October 2017 wildfires to prepare their property for the rainy season and remain alert for possible threats from intense winter storms. Many properties in the areas burned, and downstream of those areas, now have a higher risk for flash floods, rock falls, debris flows, and mud flows, and will remain so for the next few years.

The areas affected by the Nuns, Tubbs and Pocket Fires are seeing substantial improvement in watershed condition as vegetation grows, but the threat of natural hazards still exists. The highest danger occurs during  heavy rainfall, but once soils are saturated, floods or mud and debris flows can occur hours or days after the rain has stopped. Property owners in burned areas, and downstream of burned areas, can prevent erosion and stay informed about winter storm warnings by following these steps:

1. Take Precautions for your Family

  • Check the Post-Fire Hazard Map for an estimate of the risk in your vicinity. Localized or changing conditions may result in a greater threat than displayed on the map.
  • Pack emergency supply bags and identify what you’d want to save in an emergency. Consider the 6 P’s: People and Pets, Important Papers, Prescriptions, Pictures, Personal Computers, and Plastic/Paper money.
  • Create an evacuation plan and include two possible evacuation routes.

2. Prepare your Property

  • Use erosion control techniques, such as installing straw wattles and rock bags, and remove debris near creeks, storm drains and drainageways on your property.
  • For additional erosion control resources, visit  For questions, if your property is in the City of Santa Rosa, call 707-543-4649. In the unincorporated County, call 707-565-6186.

3. Remain Alert 

Know how you’ll receive alerts:

  • Wireless Emergency Alerts: Always keep your phone on, with the ringer on, to receive alerts from the National Weather Service.
  • SoCoAlert: Sign up to receive emergency notifications at SoCoAlert will be used to send an emergency notification if there is an imminent threat to life or property.
  • In areas with limited cell service, or in areas that may experience power outages, have a battery powered weather emergency radio on hand to receive critical messages from the National Weather Service.

The City and County are working in close coordination to prevent and monitor flooding. A series of rain and stream flow gauges were installed within and downstream of the burn areas by Sonoma Water as part of an early warning system for flooding. The gauges allow monitoring of streams and rainfall in real-time and offer a glimpse of conditions in the burn areas and downstream of areas that are vulnerable to flooding. Data from the gauges is used by the National Weather Service to develop their hazardous weather advisories, alerts, and warnings. This real-time rainfall and streamflow data is also available at

To assist property owners in the burn areas with managing storm water runoff, the City and the County have developed best management practices for the installation of erosion control measures at vacant lots and construction sites. These practices are designed to reduce erosion and the amount of sediment that washes off sites during rain storms – potentially causing pollution in creeks and blockage of drainageways. The City and County are conducting site visits at locations in the burn areas to ensure erosion control measures are properly installed and maintained.

Additional Info...
Facebook Twitter Email

Other News in Santa Rosa Water

Take it From the Tap_News Flash

Take it From the TAP!

Posted on: February 7, 2023
News Flash_Dye Tab Challenge

Take the Dye Tab Challenge

Posted on: February 1, 2023
Drought Update Jan

Water Supply Update - Jan. 11, 2023

Posted on: January 11, 2023
Toilet Rebate

NEW Toilet Replacement Rebate Available

Posted on: January 11, 2023
News Flash_Drought Update

Water Supply Update - Dec. 7, 2022

Posted on: December 7, 2022
News Flash_Turn Off Irrigation

It’s Time to TURN OFF Your Irrigation

Posted on: November 1, 2022
News Flash_Call for Gardens

Call for WaterSmart Gardens!

Posted on: September 26, 2022
News Flash_Storm Water Team Spotlight

Team Spotlight: Storm Water and Creeks

Posted on: September 22, 2022
News Flash_Drought

Water Supply Update - September 22, 2022

Posted on: September 22, 2022
News Flash_Creek Critter_River Otter

Creek Critter: River Otter

Posted on: September 21, 2022
Ribbon Cutting_News Flash

Lower Colgan Creek Restoration Project

Posted on: August 24, 2022
News Flash_WaterSmart Businesses

Drought Resources For Businesses

Posted on: August 23, 2022
News Flash_Aug Water Supply

Water Supply Update - August 18, 2022

Posted on: August 18, 2022
News Flash_Free Device

Free WaterSmart Devices

Posted on: August 12, 2022
News Flash_Tree Care

Help Your Trees Survive Drought

Posted on: August 10, 2022
News Flash_Plant Picker

WaterSmart Plant Picker

Posted on: August 3, 2022
News Flash_Summer Popup

Saving Water Summer Pop Ups

Posted on: July 7, 2022
News Flash_Irrigation

Schedule an Irrigation Checkup

Posted on: July 21, 2022
News Flash_Drought Update

Water Supply Update - July 14, 2022

Posted on: July 14, 2022
News Flash_Smart Irrigation

July is Smart Irrigation Month

Posted on: June 29, 2022
WaterSmart Check-up

Schedule a WaterSmart Check-up!

Posted on: June 1, 2022
News Flash_Drought

Top 10 Water-Saving Tips

Posted on: June 1, 2022
Cash for Grass

Cash for Grass Rebate

Posted on: May 23, 2022
News Flash_ WaterSmart Audit

Free WaterSmart Devices

Posted on: March 17, 2022

Water Supply Update - March 17, 2022

Posted on: March 17, 2022