A particularly dangerous situation red flag warning is in place from noon Monday to 10 a.m. PT Tuesday for a large portion of Ventura and Los Angeles counties.

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.

NWS' 3:40 a.m. advisory indicates winds were blowing northeast at speeds between 25 to 35 mph, with gusts up to 60 mph.

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.

Cal Fire said crews will continue reinforcing and maintaining the wildfire's containment lines as critical fire weather is here.

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 ...

This comes after a "Particularly Dangerous Situation," red flag warning expired Wednesday evening. The I-5 corridor, the Santa Susana Mountains and portions of the Santa Clarita Valley remain ...

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.