Evacuation orders issued; A shelter opens in Tracy. What you need to know to stay safe.

California firefighters are battling the fast-moving Corral Fire that started Saturday near the 300 of the Lawrence Livermore National Laboratory Site and within hours had blown up to 25,000 acres and is threatening homes southwest of Tracy.

The California Department of Forestry and Fire Protection does not yet know what caused the fire. This is a breaking news story. Check back for updates.

The San Joaquin County Office of Emergency Services has extended an evacuation order for residents near the Corral Fire burning southwest of Tracy.

Evacuation orders are in effect for residents living:

• West of the California Aqueduct

• South of Corral Hollow Creek

• West to Alameda County and south to Stanislaus County

Where you can go for shelter

• A temporary evacuation point is the Larch Clover Community Center, 11157 W. Larch Road in Tracy.

• A large animal shelter is located in the Manteca Unified School District, 2271 W. Louise Ave. in Manteca.

What you need to know about the Corral Fire

The Corral Fire was reported at West Corral Hollow in Alameda and San Joaquin counties at 2:39 p.m.

The fire has consumed 10,000 acres near Lawrence Livermore National Laboratory Site 300, southwest of Tracy, according to the latest report released by the California Department of Forestry and Fire Protection just before 11 p.m. The containment is 13%.

The cause of the fire is unknown and still under investigation.

How to sign up for emergency alerts

To sign up for San Joaquin County’s emergency alert system, residents can visit the San Joaquin County Office of Emergency Services website, sjready.org, to register for the system.

Residents can also view the latest information on evacuation orders and evacuation maps on the website.

Preparing for evacuations due to wildfires

If residents have time before evacuating, the California Department of Forestry and Fire Protection suggests the following steps to give their homes the best chance to survive the wildfire:

In the House

• Pack your ‘go-bag’ or emergency kit and make sure you can reach it.

• Check that your wildfire action plan is up to date.

• Know your community’s emergency plan, evacuation routes and destinations.

• Close all windows and doors, but leave them unlocked.

• Remove flammable window coverings, such as shades and curtains, and close metal shutters.

• Clear away light curtains.

• Move anything that burns easily to the center of the room, away from windows and doors.

• Turn off the gas at the meter and pilot lights.

• Leave the lights on so the fire department can see your house in smoke.

• Turn off the air conditioning.

Outside the house

• Bring in flammable items from outside, such as patio furniture, toys, doormats and trash cans. You can also place them in your swimming pool.

• Shut off propane tanks.

• Move grills and other propane barbecues away from the house.

• Connect garden hoses to outdoor taps for fire department use and fill buckets with water to spread around.

• Do not run sprinklers or water as this can lower critical water pressure.

• Leave exterior lights on to make your home visible in smoky or dark conditions.

• Put your emergency kit in your car.

• Park your car in the driveway, facing out, loaded and ready, with all doors and windows closed.

• Keep a ladder handy so firefighters can gain access to the roof.

• Seal attic and ground openings with plywood or commercial caulking.

• Monitor the fire situation and do not wait for an evacuation order if you feel threatened.

• Check with neighbors to make sure they are prepared too.

Record reporter Hannah Workman covers news in Stockton and San Joaquin County. She can be reached at hworkman@recordnet.com or on Twitter @byhannahworkman. Support local news and subscribe to The Stockton Record at https://www.recordnet.com/subscribenow.

This article originally appeared on The Record: Corral Fire forces evacuations; A shelter opens in Tracy