A red flag warning has been issued for the Inland Empire and some cities in the Coachella Valley as strong gusty winds and low humidity are expected early next week. The warning is in effect from 10 a.

Two major fires are still uncontained in the Los Angeles area with red flag warnings issued for Monday, meaning powerful Santa Ana winds will make conditions hard for crews to fight already devastating blazes.

Extreme fire weather returns to Southern California - particularly Los Angeles and Ventura counties - as winds of up to 100 mph have prompted the most urgent warning from the National Weather Service.

Another round of fire weather is expected to last for much of this week as residents return home to the Palisades and Altadena neighborhoods to inspect the devastation.

Red flag criteria is generally when relative humidity is at 15% or less, combined with sustained winds and/or gusts of 25 mph or greater. Both of these conditions must occur simultaneously for at least 3 hours in a 12 hour period, according to the NWS.

As firefighters struggle to gain control of massive and deadly wildfires that are raging across parts of the Los Angeles area, the region is once again bracing for the potential of new fires and for current ones to intensify as a new storm system heads for the state.

A red flag warning is issued by meteorologists when environmental conditions are favorable for rapid fire spread. Typically, this means winds must be at least 35 miles per hour, the relative ...

A red flag warning remains in effect for much of southern California through Wednesday, with humidity as low as 10% and gusty Santa Ana winds up to 70 mph. An ABC News graphic shows the fire ...

The National Weather Service issued a Red Flag Warning starting Monday for San Diego County's inland valleys and mountains.

However, some places around Santa Clarita were still under a red flag warning through Thursday at 3 p.m.: The extension to the warning is due to lingering Santa Ana Winds in the Santa Susana ...

Gusts of up to 70 mph are possible along the coast and valleys, and in the mountains, up to 100 mph, the National Weather Service said. Parts of L.A. County, and most of Ventura County, are at highest risk.