San Bernardino County staff said mudslides and debris flows from the first major rainstorm of the season have blocked drains and closed roads in the unincorporated communities of Oak Glen and Forest Falls.

A county staff member said crews are working to clear debris and restore water flow. "Mud came down, plugged up some of our drains here ... and blocked all 3 of the bridal," the staff member said, adding that teams were "working around the clock 24 7 until we get this cleared and we get this community cleaned up."

The speaker noted that road closures are in effect in both areas and urged residents and visitors to be alert. A resident who spoke from Oak Glen said, "Any residents who are living or heading up to the area, please be on alert as road closures are, noted throughout both areas. For continuous updates, please visit prepare.sbcounty.gov."

The county spokesperson described the event as the season's first major rainstorm and said response teams were focused on clearing drains and returning flow to the revetment. No formal actions, evacuations, or damage estimates were provided in the remarks on the record.

Officials did not provide a timeline for reopening roads or a tally of properties affected. The county directed people to prepare.sbcounty.gov for continuous updates and safety information.

San Bernardino County emergency and public works staff are the primary responders for debris removal and road clearance in unincorporated areas; residents are advised to follow county updates and avoid travel into affected canyons until closures are lifted.