Live updates: Air quality for most of SoCal impacted by smoke from 3 wildfires

A new brush fire erupted Monday afternoon in the Trabuco Canyon area. An evacuation warning has been issued.

Officials said a chance of thunderstorms expected throughout Monday could pose even further problems for firefighters on the ground.

"The latest challenge has been those thunderstorms, and we're just keeping up with them," said Cal Fire's Brent Pascua. "We're making sure that we have our firefighters in all different directions, so if it switches directions like it did yesterday, we're there to meet it."

Thunderstorms were creating down drafts, which are pushing the blaze in unpredictable directions, according to Chris Prater with San Bernardino County Fire.

"Firefighters are fighting a very tough battle," Prater said. "They're fighting in 100-plus degree temperatures. Very steep terrain. And some new weather conditions today with thunderstorms that came in."

Smoke from the Line Fire, a wildfire burning near Highland, is impacting air quality across Inland Empire. The AQI is "very unhealthy" for some cities.

According to AirNow.gov, a fire and smoke map shows the air quality index at 228. The recommendation for everyone is to limit outdoor physical activity, and for sensitive groups is to avoid all outdoor physical activity.

Smoke from the fire is impacting areas across the Inland Empire. Areas labeled with "unhealthy" to "very unhealthy" air quality according to AirNow.gov include San Bernardino, Fontana, Jurupa Valley, Redland, Loma Linda and more.

You can see all the areas impacted by smoke from the Line Fire here.

The Line Fire has forced evacuation orders and road closures near Highland and for the communities of Angeles Oaks, Seven Oaks and Running Springs.

An interactive map from Cal Fire shows the latest evacuation orders and warnings, plus road closures and detours:

See the full list of closures and evacuations here.