2 Inches of Rain Triggers Mudslide in San Bernardino Burn Scar, Closing Mountain Passes

The heavy rain that fell above Oak Glen in San Bernardino County on Thursday transformed into a destructive mudslide. The slide serves as a stark reminder of the physical changes left by a 2020 wildfire. Stephanie Sullivan, a meteorologist with the National Weather Service in San Diego, reported that radar estimates indicate the region received about 2 inches of rainfall. This downpour is part of a monsoon pattern and is not directly related to Hurricanes Polo and Odalys. While the hurricanes are not expected to strike the California coast, they could generate swells as early as Sunday, according to forecasters.

The debris flow has impacted the local infrastructure, specifically mountain roads. Valley of the Falls Drive at Momyer Creek Trail, Oak Glen Road, and Potato Canyon Road are now closed. The Yucaipa Police Department announced these closures via a social media post around 6 p.m., noting the passageways will remain shut for an unknown amount of time. Gloria Orejel, a spokesperson for the San Bernardino County Sheriff’s Department, provided a measured assessment of the situation. She confirmed via email that there is no immediate threat to homes or residents living in the area.

Authorities issued a flash flood warning for San Bernardino and Riverside counties that was active until 6:30 p.m. on Thursday. Earlier in the week, the weather service predicted thunderstorms would dump heavy rain on the region. The agency warned of life threatening flash flooding in creeks, streams, urban areas, and underpasses. Drivers are advised to "Turn around, don't drown" when encountering flooded roads. The warning highlighted that in hilly terrain, hundreds of low water crossings become dangerous during heavy rain. The recommendation is to find an alternate route and avoid attempting to cross flooded roads.