2018 Southern California mudflows

2018 South California landslides2018 Southern California landslidesa series of mudslidesdebris flowsmudslidesrain's effects in the regionsudden flooding and debris flows
A series of mudflows occurred in Southern California in early January 2018, particularly affecting areas northwest of Los Angeles in Santa Barbara County.wikipedia
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Thomas Fire

Thomas wildfireThomas
The December fires burned 307,953 acres of which 281,893 acres were burned during the Thomas Fire, the largest fire in the state's history at the time. Early on the morning of January 9, mudflows struck Montecito, which had been affected by the Thomas Fire, and other areas of Santa Barbara County.
By January 10, at least 21 people had been killed by the sudden flooding and debris flows that followed the heavy rains, which also destroyed over 100 homes.

Montecito, California

MontecitoMontecito, CA
Early on the morning of January 9, mudflows struck Montecito, which had been affected by the Thomas Fire, and other areas of Santa Barbara County.
Montecito was evacuated five times in four months between December, 2017, and March, 2018, because of weather-related events, which included the Thomas Fire, the 2018 Southern California mudflows, and flooding related to the Pineapple Express.

T. C. Boyle

T.C. BoyleT. Coraghessan BoyleT.C.Boyle
Writer T.C. Boyle whose home was proximate to both the fire and mudslides, documented the collective trauma in The New Yorker magazine.
The fires denuded drought-stricken hillsides of vegetation and torrential rains in January 2018 subsequently dislodged immense boulders and precipitated mudslides which destroyed over one hundred homes and killed almost two dozen of his neighbors.

December 2017 Southern California wildfires

multiple wildfiresa series of major wildfiresa new round of wildfires
The December fires burned 307,953 acres of which 281,893 acres were burned during the Thomas Fire, the largest fire in the state's history at the time. The disaster occurred one month after a series of major wildfires.
2018 Southern California mudflows

La Tuna Fire

La Tuna
Parts of Burbank and Sun Valley, previously affected by the La Tuna Fire in 2017, received 4 in of rain and were evacuated ahead of potential mudslides.
2018 Southern California mudflows

Canyon Fire 2

Canyon 2Canyon Fire
Heavy rain in Corona, affected by the Canyon Fire, covered streets with mud and flooded into several homes, but no major damage has been reported.
2018 Southern California mudflows

January 2018 Western United States floods

heavy rain was predicted for the American Southwestheavy rainfall
While wildfires in Southern California exacerbated the rain's effects in the region, other states, like Nevada, also experienced flooding.

List of landslides

El Cobre dam burst and landslidelargest submarine landslideNuuanu Slide
List of landslides

2017 California floods

floodedJanuary 7–13, 19–24 February 8–22Northern California's wettest winter in over 100 years
2017 California floods
2018 Southern California mudflows

Mudflow

mudslidemudslidesmud flow
A series of mudflows occurred in Southern California in early January 2018, particularly affecting areas northwest of Los Angeles in Santa Barbara County.

Southern California

southernSoCalCalifornia
A series of mudflows occurred in Southern California in early January 2018, particularly affecting areas northwest of Los Angeles in Santa Barbara County.

Los Angeles

Los Angeles, CaliforniaLos Angeles, CALA
A series of mudflows occurred in Southern California in early January 2018, particularly affecting areas northwest of Los Angeles in Santa Barbara County.

Santa Barbara County, California

Santa BarbaraSanta Barbara CountySanta Barbara Counties
Early on the morning of January 9, mudflows struck Montecito, which had been affected by the Thomas Fire, and other areas of Santa Barbara County. A series of mudflows occurred in Southern California in early January 2018, particularly affecting areas northwest of Los Angeles in Santa Barbara County. The Thomas Fire, which devastated parts of Santa Barbara and Ventura counties, burned large amounts of vegetation whose roots had helped stabilize topsoil in hillsides and other vulnerable areas.

2017 California wildfires

wildfire2017 California wildfire seasonwildfires in California
The 2017 California wildfire season was the most destructive in California's history, with approximately 9,133 wildfires that burned over 1.3 e6acre and killed 46 people.

Santa Ana winds

Santa AnaSanta AnasSanta Ana conditions
At the beginning of December, the Santa Ana winds fanned wildfires across southern California, which were fueled by a lack of rainfall during what is normally the region's rainy season.

Ventura County, California

Ventura CountyVenturaVentura Counties
The Thomas Fire, which devastated parts of Santa Barbara and Ventura counties, burned large amounts of vegetation whose roots had helped stabilize topsoil in hillsides and other vulnerable areas.

Low-pressure area

area of low pressurelow pressure arealow pressure
A strong low-pressure system and cold front developed off the coast of California on January 5, 2018.

Cold front

cold frontscoldfrontal
A strong low-pressure system and cold front developed off the coast of California on January 5, 2018.

Los Angeles County, California

Los Angeles CountyLos AngelesCounty of Los Angeles
The system moved onto the mainland on January 8, bringing heavy rain to Southern California and prompting mandatory evacuations in parts of Los Angeles, Santa Barbara, and Ventura Counties, over potential mudslides in areas affected by wildfires.

Santa Ynez Mountains

Santa Ynez MountainSanta Ynez Mountain rangeSanta Ynez
An estimated 0.5 in of rain fell within a five-minute period at approximately 3:30 a.m., causing mud and boulders from the Santa Ynez Mountains to flow down creeks and valleys into Montecito.

U.S. Route 101 in California

U.S. Route 101US 101Highway 101
Over 20,000 people lost power, and a 30 mi section of U.S. Route 101 (US 101) from Santa Barbara to Ventura was shut down as sections filled with 2 ft of mud and debris, some of which also reached beaches 2.25 miles (3.6km) from the mountains.

Ventura, California

VenturaSan BuenaventuraCity of Ventura
Over 20,000 people lost power, and a 30 mi section of U.S. Route 101 (US 101) from Santa Barbara to Ventura was shut down as sections filled with 2 ft of mud and debris, some of which also reached beaches 2.25 miles (3.6km) from the mountains.

Los Padres National Forest

Los PadresChina Camp
Following the closure, access to Santa Barbara from the Los Angeles area was limited to a 260 mi detour around the Los Padres National Forest or through the use of private ferries to Ventura.

Amtrak

Amtrak trainsAmtrak’sNational Railroad Passenger Corporation
On January 11, Amtrak train service was restored to Santa Barbara and US 101 was partially reopened as far west as Carpinteria.

Carpinteria, California

CarpinteriaCarpinteria, CACarpinteria, Calif.
On January 11, Amtrak train service was restored to Santa Barbara and US 101 was partially reopened as far west as Carpinteria.