Forecasters expect Wednesday will be noticeably windier than Tuesday and firefighters warned that vegetation is critically dry.

Wind gusts of 50 to 70 mph in the mountains and 30 to 50 mph on the coasts and valleys are forecast for Los Angeles and Ventura counties on Wednesday. Residents exhausted by days of fire face red flag warnings with the rare "particularly dangerous situation" designation issued for those counties through Wednesday afternoon.

Here's a guide to understanding "particularly dangerous situation" red flag warnings, containment, and other terms related to the devastating fires that have left much of the LA area in ruins.

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.

Cal Fire crews are responding to the scene of a brush fire in Ramona that broke out early Tuesday morning, threatening at least one structure.

After extreme winds gusts helped fan the flames of the Palisades and Eaton fires last week, a Red Flag Warning is once again in effect.

With Santa Ana winds developing slowly and weaker than originally anticipated, the National Weather Service has delayed implementation of "particularly dangerous situation" red flag warnings -- which were supposed to begin early Tuesday morning -- until 3 a.

On3, Orange County Fire Authority swiftly responded to a vegetation fire near Vintage Park in Lake Forest, California, quickly containing the blaze to just 1/4 acre in a remarkable 13 minutes. The fire was reported at 4:35 p.