Weekend downpours that may continue Monday helped stop the North and Pine fires from spreading but also flooded roads, caused mudslides and forced a number of events to be canceled, authorities said Sunday.
The National Weather Service issued a flash-flood warning for the San Bernardino area and a less severe flash-flood watch for the San Gabriel Valley.
“Reports are starting to come in of some pretty significant flooding in the Inland Empire,” James Brotherton, a National Weather Service meteorologist based in San Diego, said about 3:30 p.m.
The worst flash floods were occurring in Perris and other parts of Riverside County, he said, but San Bernardino County was also experiencing substantial rainfall.
Water and mud flowed into several Moreno Valley homes.
San Timoteo Canyon Road was closed between Fern Avenue and Redlands Boulevard because of mudslides, according to the Redlands Fire Department. Firefighters rescued four people who were trapped in their cars. Another motorist was stranded in Reche Canyon when his car got stuck in mud.
Other destruction from the rain included rock slides on mountain roads, a downed tree in Redlands, flooded Victorville streets, delays on the San Bernardino Metrolink line and mud flowing onto the 15 Freeway near Highway 138 in the Cajon Pass, causing lanes to temporarily close.
• Photos: North fire burns homes, cars near Cajon Pass
Outdoor concerts in Sierra Madre and Glendora were canceled. Junior University canceled performances of “The Jungle Book” that were scheduled for Saturday and Sunday in San Bernardino’s Perris Hill Park.
A portion of Redlands High School’s Dodge Stadium found itself under water.
Coaches and school district staff were on site to assess the situation and said the Zanja channel, which runs next to the stadium, could be to blame.
“When the Zanja overfills, it comes into the school,” explained Mario Camarena, a maintenance supervisor at Redlands High. “When it rains really hard, the level of the (Zanja) works to take it all in, but when it rains like it did, there’s no way to hold it all back.”
Los Angeles County beaches remained open, but lifeguards advised against swimming near river mouths and storm drains.
“Rain and thunderstorms will continue widespread this evening and then diminishing after midnight” in the San Bernardino Valley, Brotherton said. “For tomorrow morning, we still could have a few showers and thunderstorms before noon and then drying out tomorrow afternoon.”
The storms are expected to linger around the San Bernardino Mountains and San Gabriel Valley Monday night, according to the National Weather Service.
Weather officials advised residents to be wary of mountainsides that have recently burned and flash-flood areas.
“Be very cautious around flooded roads,” Brotherton said. “It’s safer just to turn around because you don’t know how deep the water will be.”
The San Bernardino Fire Department notified firefighters to make sure they have swift-water rescue gear on their trucks.
Water and mud rushed through the Pines fire incident command center near Wrightwood.
Rain totals were scattered throughout the region. Phelan received the most, just under 2 inches. Most of the San Bernardino and Inland valleys accumulated between 1/10 and a half inch, according to NWS accumulation figures.
• Photos: Firefighters battle Pines Fire near Wrightwood
The rain helped firefighters get the upper hand on the Pine fire, which ignited Friday night, caused hundreds to evacuate from campgrounds and burned about 200 acres.
The campgrounds and Highway 2 were reopened Sunday, according to U.S. Forest Service spokesman Andrew Mitchell.
He said active flames had mostly subsided and the fire was mostly smoldering.
“It’s mostly in mop-up phase and finishing up,” he said. “The weather overnight had a good effect. Hopefully, we’ll have some more weather today that will help.”
Roughly 20 miles northeast, Baldy Mesa residents were allowed to return to their homes, but three fire roads remained closed after the North fire ripped through the community Friday, according to fire officials. Seven homes, 16 other structures and 44 vehicles were destroyed by the blaze.
Shortly after the fire ignited, another 20 cars were destroyed and 10 more were damaged when flames ran across the 15 Freeway in the Cajon Pass, where traffic was backed up. No one has been seriously injured by the wildfire.
Fire officials said Sunday the blaze was 75 percent contained. The acreage increased from 3,500 to 4,250 acres because of better mapping. The fire hadn’t spread, the U.S. Forest Service said.
A bridge collapsed Sunday at the eastbound 10 Freeway and Eagle Mountain Road in Desert Center, trapping a truck beneath the debris, according to the Riverside County Fire Department.
The bridge reportedly collapsed into water that built up during the afternoon’s thunderstorms.
Caltrans officials said both sides of the freeway would be closed for an extended period.
Staff Writers Doug Saunders, Brian Day and Kristina Hernandez and City News Service contributed to this report.