NEW - Flood Evacuation Zones for South Butte County

There are 11 Flood Evacuation Zones in South Butte County. The zones cover the Cities of Oroville, Gridley, Biggs, and the surrounding unincorporated communities from the Oroville Dam south to the Butte County line on both sides of the Feather River.  Each Evacuation Zone includes a recommended Evacuation Route, Public Assembly Point, and Evacuation Center. Zones can be viewed by clicking on of the links below or on the interactive map.

  • Oroville area, (View Zones 1) 
    Community Meeting March 24th at 6:00 pm at the Church of the Nazarene, 2238 Monte Vista Avenue, Oroville
  • Thermalito (View Zone 2)
    Community Meeting March 30th at 6:00 pm at Nelson Avenue School, 2255 6th Street, Oroville
  • Palermo area (View Zones 3 and 4 | View Zone 10)
    Community Meeting Mar 29th at 6:00 pm at the Palermo School Gym, 7350 Bulldog Way, Palermo
  • Biggs area (View Zones 5 and 6 | View Zones 7 and 11)
    Community Meeting March 16th at the Butte County Fairgrounds, Butte Hall 199 East Hazel Street, Gridley
  • Gridley area (View Zones 6 and 9 | View Zone 8)
    Community Meeting March 16th at the Butte County Fairgrounds, Butte Hall 199 East Hazel Street, Gridley

Be Prepared for an Evacuation

  1. Learn the Evacuation Categories
  2. Know how to Stay Informed During and Emergency
  3. Get Prepared Today
  4. Make sure people with disabilities and activity limitations have a plan. For information about the Special Needs Assistance Program (SNAP) call OEM at (530) 538-7373

Interactive Flood Evacuation Map

Enter your address or click on a zone to find your zone, learn your evacuation route, and see where to go in case of an evacuation. View interactive map full screen.

Contact the Butte County Sheriff's Office, with comments and feedback about the Flood Evacuation Zones.

Oroville Spillway and Butte County Storm Information

Public Information Lines

  • The Public Information Line for the Oroville Spillway and Butte County information has been transitioned to a recorded message. The recorded message can be accessed by calling, (530) 538-7826
  • Sutter County Information: (530) 822-4575
  • Yuba County Information: (530) 749-7520

Emergency Mass Notification 

Sign up for Butte County Emergency Mass Notifications Online.

Emergency Mass Notification

Contact the Butte County Sheriff's Office, if you have trouble registering your address for notifications.

Evacuation Warning in place for the following areas:

Oroville and Thermalito, the areas south of Lincoln Blvd on the west side of Lincoln to Ophir Road. 

All low-lying areas around the Feather River, which includes Gridley, Biggs, Yuba City, Loma Rica, and anywhere south of Butte County along the River.

Preparing for Evacuation - Stay Prepared

Plan for Animal Evacuation

Before any type of emergency occurs, have a plan in place for evacuation of your animals. Research possible locations for you and your pets to go and keep an updated list of friends who live outside of the area that might be able to care for your animals.

Build a Go Bag!

A Go Bag contains items that should sustain you for 72 hours in the event of emergency or evacuation. Every member of your family should have their own Go Bag. Store your Go Bag where you feel it is most accessible if you have to leave your home or work with very short notice. Learn which items to include in your Go Bag and how to maintain your bag.

Make a Family Communication Plan Tonight

Family Communication Plan

Being prepared for an emergency is always a good idea. Today, it is especially important. Your family may not be together if an the Evacuation Warning is upgraded to an Immediate Evacuation Order, so it is important to think develop a Family Community Plan. Use these resources from FEMA.

Road Closures

Road Closed

Many roads in Butte County are closed due to flooding. View a full list online. To check state road conditions visit and

Sandbag Locations

View a full list of locations to get sandbags, bulk sand, and empty bags in Butte County. If you cannot store sandbags onsite, know where you can access sand and bags when a storm watch or warning is issued.

Stay Informed During an Emergency

Emergency personnel monitor the status of a storm and conditions. Residents should stay informed as storms progresses.

Weather and Road Conditions

Dial 9-1-1 for emergencies only, do not call for information or to report power outages.

PG&E Information Line - 1.800.743.5000 (Report power outages and downed power lines)
View and report outages to PG&E online or with a mobile device and follow on Twitter @PGE4Me.

Storm Information Online & on Social

Butte County
Website | Twitter | Facebook

Butte County Sheriff's Office
Website | Twitter | Facebook | Nextdoor

CAL FIRE / Butte County Fire
Website | CAL FIRE Incidents | Twitter

Sign up to receive emergency notifications by phone (landline or mobile), text message, or email. Sign up online.

Residents with scanners or weather radios can listen to updates on NOAA radio, WWF67 at 162.40 MHZ. This station cannot be picked up on regular AM/FM radios but receivers can be purchased at area electronics stores for between $20 and $200. Residents can also stay tuned to local media for updates and weather warnings.


Prepare your property now to reduce flooding during heavy rain events.

The National Weather Service is tracking and forecasting an El Nino event for Winter 2015/2016. El Nino events may bring heavy rainfall to the area, which can result in flooding.

  • Make a place for water to runoff. 
    • Clear ditches on your property or adjacent to your property of vegetation and other debris before it rains to ensure water runoff has a place to flow.
    • Be aware permits may be required to work in some creeks, streams, rivers, and ditches not maintained by the County. 
  • Be ready to protect your property with sandbags.
    • Have full sandbags stored onsite and ready to use during a heavy rain event. View a full list of locations to get sandbags, bulk sand, and empty bags in Butte County.
    • If you cannot store sandbags onsite, know where you can access sand and bags when a storm watch or warning is issued.