Several days of monsoon thunderstorms impacted the mountains and High Desert in Southern California. The San Bernardino County Mountains were particularly hard hit. Torrential downpours led to flash flooding and debris flows, including over the El Dorado burn scar.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 31-JUL-22 17:10:00 to 31-JUL-22 23:59:00 (PST-8)
Location: DESERT SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flash flooding across the High Desert. Two to three feet of water across the roadway at SR-18 and Johnson Road north of Phelan. SR-247 at Rabbit Springs closed due to flooding. Also, report from MPing of street/road flooding with road closures. Vehicles stranded by flood waters.

Flood in SAN BERNARDINO, CALIFORNIA
From 30-JUL-22 16:02:00 to 30-JUL-22 16:02:00 (PST-8)
Location: LUCERNE VLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Water flowing over road, with rocks and debris noted along State Route 247 at Northside.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 30-JUL-22 17:00:00 to 30-JUL-22 17:00:00 (PST-8)
Location: LUCERNE VLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

SR-247 closed at Rabbit Springs Road (northbound) due to flooding and debris flows.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 30-JUL-22 17:25:00 to 30-JUL-22 17:25:00 (PST-8)
Location: FOREST FALLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flash flooding 4 SW Forest Falls. A car was reported stuck in flood waters at Oak Glen Road and Potato Canyon Road. Ten homes were shelter in place due to flash flooding of Potato Canyon from Birch Creek. Potato Canyon Road covered in mud and debris and eventually washed out at Birch Creek. Road closed from Saturday night into Sunday morning. Rainfall of 1.8 inch was measured at Yucaipa Ridge upstream, 1.2 of which occurred in one hour.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 31-JUL-22 11:00:00 to 31-JUL-22 11:00:00 (PST-8)
Location: SEVEN OAKS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Debris and rocks across Highway 38 at Hill Ranch Road, where there was also water flowing across the road. Vehicles stuck on roadway, requiring rescue.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 31-JUL-22 11:05:00 to 31-JUL-22 11:05:00 (PST-8)
Location: SEVEN OAKS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Highway 38 closed between Valley of the Falls to Lake Williams. Multiple cars stuck, requiring rescue west of Jenks Lake.

Flood in SAN BERNARDINO, CALIFORNIA
From 30-JUL-22 16:03:00 to 30-JUL-22 16:03:00 (PST-8)
Location: APPLE VLY ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Vehicle stuck in mud along State Route 247 and Meander Road.

Flood in SAN BERNARDINO, CALIFORNIA
From 30-JUL-22 16:12:00 to 30-JUL-22 16:12:00 (PST-8)
Location: WILD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

I-15 southbound and northbound lanes flooded.

Flood in SAN BERNARDINO, CALIFORNIA
From 31-JUL-22 10:57:00 to 31-JUL-22 10:57:00 (PST-8)
Location: SUGARLOAF
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Drainage ditch overflowing with flooding on both sides of Highway 38 near Mitchell Lane.

Flood in SAN BERNARDINO, CALIFORNIA
From 31-JUL-22 10:58:00 to 31-JUL-22 10:58:00 (PST-8)
Location: BIG BEAR CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Flooding on Highway 38 between Paradise and Maple Lane.

Flood in SAN BERNARDINO, CALIFORNIA
From 31-JUL-22 17:10:00 to 31-JUL-22 17:10:00 (PST-8)
Location: (VCV)GEORGE AFB VICT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flooding report from MPing.

Heavy Rain in RIVERSIDE, CALIFORNIA
From 30-JUL-22 13:00:00 to 30-JUL-22 13:00:00 (PST-8)
Location: PINE COVE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Rainfall of 0.54 inch. Mesonet station FW6884 Pine Cove water office.

Heavy Rain in SAN BERNARDINO, CALIFORNIA
From 30-JUL-22 13:00:00 to 30-JUL-22 13:00:00 (PST-8)
Location: MOONRIDGE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Rain of 1.58 inch. Mesonet Station HBRC1 Heart Bar at 6800 feet.

Heavy Rain in SAN BERNARDINO, CALIFORNIA
From 30-JUL-22 13:00:00 to 30-JUL-22 13:00:00 (PST-8)
Location: SEVEN OAKS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Rainfall of 0.8 inch. Mesonet station CVNC1 Seven Oaks.

Heavy Rain in SAN BERNARDINO, CALIFORNIA
From 30-JUL-22 17:15:00 to 30-JUL-22 17:15:00 (PST-8)
Location: FOREST FALLS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Rain of 1.34 inch. Mesonet Yucaipa Ridge measured in one hour.

Heavy Rain in SAN BERNARDINO, CALIFORNIA
From 30-JUL-22 17:15:00 to 30-JUL-22 17:15:00 (PST-8)
Location: ARROWBEAR LAKE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Rainfall of 1.20 inch measured in 45 minutes at Arrowbear.

Heavy Rain in SAN BERNARDINO, CALIFORNIA
From 30-JUL-22 18:00:00 to 30-JUL-22 18:00:00 (PST-8)
Location: FOREST FALLS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Rainfall of 1.81 inch. Yucaipa Ridge daily total rainfall.

Heavy Rain in ORANGE, CALIFORNIA
From 31-JUL-22 11:25:00 to 31-JUL-22 11:25:00 (PST-8)
Location: LAKE FOREST
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain of 0.4 inch along I-5 from San Juan Capistrano to Lake Forest. Small street flooding along freeway on/offramps and local intersections. Several small traffic incidents, slowing traffic along I-5.