Multiple wildfires have pushed tens of thousands of residents to flee their homes, and strong winds have exacerbated the emergency, officials say.

Although the cause of each blaze has yet to be determined, they all burned in or near foothill communities amid gusty winds and dry air and vegetation.

The American Red Cross is helping wildfire victims find shelter and food. Call the American Red Cross hotline at 1-800-RED CROSS or text CAWILDFIRES to 90999 to make a donation. The nonprofit organization urged Californians to sign up to give blood, noting that blood donations have dropped since the fires began.

Coverage of the Eaton and Palisades fires, including stories about the unprecedented losses, issues firefighters faced and the winds.

At least two wildfires ignited in Southern California during critical fire weather and triggered fresh evacuations on Tuesday, one week after deadly blazes first erupted across Los Angeles County. The big picture: The fires have killed at least 25 people and the "Particularly Dangerous Situation Red Flag Warning" that the National Weather Service's L.