LOS ANGELES (CBS) — A red flag warning will be in effect across the Southland Wednesday due to high winds and low humidity levels.

Fierce winds kicked up overnight and caused problems in the Inland Empire, where travel on Interstate 10 was treacherous.

Gusts of up to 60 miles and hour kicked up dust and toppled trees. Power was also knocked out in the 500 block of West Sequoia in San Bernardino.

Firefighters are concerned about dry brush in the hillsides that can burn quickly once it’s ignited.

Crews knocked down a brush fire off the 210 Freeway in Sunland Tuesday night before it caused any major damage.

Fire departments across the Southland are posting fire warnings on their Web sites asking residents to be on the lookout for smoke, as well as any suspicious activity.

The red flag warning will remain in effect until 6 p.m.