The second in a series of October storms brought with it heavy rain, thunderstorms, flash flooding, and funnel clouds. Very heavy rain upwards of 9 inches in the mountains caused serious flash flooding and debris flows in parts of the San Bernardino Mountains. Hundreds of car accidents were reported and several mountain roads were made impassible from mud and rockslides. Roadway flooding was commonplace all across southwest California. The combination of heavy rain and moderate winds caused many trees around the area to come crashing down, causing sporadic power outages. Heavy rain and fog was blamed for a 41 vehicle pileup on Interstate 15 north of HWY 138 at 1237pm. Several funnel clouds were spotted offshore from San Clemente.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 20-OCT-04 09:00:00 to 20-OCT-04 10:00:00 (PST)
Location: FOREST FALLS
Property damage: 25K
Reported by: NEWSPAPER

Valley of the Falls Dr was made impassable by mud and rocks that were deposited by flood waters which washed over a large stretch of the road early on the 20th.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 20-OCT-04 05:30:00 to 20-OCT-04 06:30:00 (PST)
Location: REDLANDS
Property damage: 700K
Reported by: NEWSPAPER

Water overflowed the banks of the Mill Creek Zanja flood channel, causing an estimated $700,000 in damage to the flood channel and surrounding areas near Sylvan Park and the University of Redlands.

Flash Flood in ORANGE, CALIFORNIA
From 20-OCT-04 04:00:00 to 20-OCT-04 05:00:00 (PST)
Location: TUSTIN
Property damage: 15K
Reported by: DEPT OF HIGHWAYS

Five vehicles were submerged when highway 55 flooded at 4th street.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 20-OCT-04 04:15:00 to 20-OCT-04 04:45:00 (PST)
Location: CHINO
Property damage: 5K
Reported by: NEWSPAPER

A 50-year-old man had to be rescued from his truck near El Prado Golf Course when it was submerged up to its hood in flood waters.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 20-OCT-04 02:30:00 to 20-OCT-04 07:00:00 (PST)
Location: DEVORE
Property damage: 50K
Reported by: NEWSPAPER

A large mud and rock slide inundated Greenwood Avenue, leaving behind a huge mess which included trees, large rocks, and mud. Some vehicles were burried in a couple feet of mud, and area homes sustained damage from the flow.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 20-OCT-04 05:30:00 to 20-OCT-04 08:25:00 (PST)
Location: FONTANA
Property damage: 1M
Reported by: DEPT OF HIGHWAYS

Widespread flooding occured in the vicinity of Interstate 10 and Etiwanda Ave. Vehciles caught in the flood waters reportedly floated away and minor flooding damaged homes along Etiwanda Ave. Nearby, the San Sevaine flood-control channel overflowed and washed out some railroad tracks, resulting in the derailment of three cars of a Union Pacific freight train. The derailment and flooding forced the shutdown of two gas pipelines that supply jet fuel from Southern California to Phoenix and Las Vegas.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 20-OCT-04 02:28:00 to 20-OCT-04 07:00:00 (PST)
Location: SAN BERNARDINO
Property damage: 100K
Reported by: NEWSPAPER

Heavy rains over the San Bernardino Mountains caused a torrent of mud and water to run down Lytle Creek. More than three feet of mud was deposited on Glen Helen Rd and Lytle Creek. One car was swept away and burried in the mud. No one was in the car at the time. A week later on October 26, the body of a 49 year-old man was found tangled in mud and trees near the Lytle Creek ranger station. It appears likely that this man was swept away in the flood waters from the October 20 storm.

Flash Flood in SAN BERNARDINO, CALIFORNIA
From 20-OCT-04 02:21:00 to 20-OCT-04 07:00:00 (PST)
Location: WRIGHTWOOD
Property damage: 320K
Reported by: NEWSPAPER

A flash flood washed out a bridge on Highway 2 at Sheep Creek. The bridge was completely burried under mud and rocks as a torrent of muddy water rushed over the bridge. The gap between the bottom of the bridge and the creek bed, which is normally around 15 feet, completely filled with mud and debris. Crews rushed to remove 600 cubic yards of mud from beneath the bridge as another strong winter storm would hit the week after.

Flash Flood in RIVERSIDE, CALIFORNIA
From 20-OCT-04 05:30:00 to 20-OCT-04 11:00:00 (PST)
Location: MIRA LOMA
Property damage: 500K
Reported by: DEPT OF HIGHWAYS

Swift moving runoff washed out a large section of Lucretia Ave. near 66th Street in Mira Loma. Homes along Lucreita Ave. were damaged by the flood, which was 5 feet deep in spots. Further south, about 100 horses had to be rescued as the Santa Ana River inundated the River Trails Riding Stable in Norco with deep water. Some horses were neck-deep in floodwaters before they could be led to safety.

Flash Flood in SAN DIEGO, CALIFORNIA
From 20-OCT-04 09:50:00 to 20-OCT-04 11:36:00 (PST)
Location: ESCONDIDO
Property damage: 5K
Reported by: DEPT OF HIGHWAYS

Creeks in the Harmony Grove area overflowed from heavy runoff, sending a river of water two to three feet deep rushing over Harmony Grove Rd. near Country Club Dr. Other roads in the area also had to be closed due to swift moving runoff and flooding.

Flash Flood in SAN DIEGO, CALIFORNIA
From 20-OCT-04 10:30:00 to 20-OCT-04 11:30:00 (PST)
Location: SAN MARCOS
Property damage: 1K
Reported by: TRAINED SPOTTER

Heavy rain sent three to four feet of water rushing over Craven Rd. in San Marcos.