The Zaca Fire was a wildfire in the San Rafael Mountains, northeast of the Santa Ynez Valley in Santa Barbara County, California. It was the single largest wildfire of the 2007 California wildfire season. The fire started on July 4, 2007, and by August 31, it had burned over 240,207 acres (972.083 km2), making it California's second largest fire in recorded history at that time after the Cedar Fire of 2003. As of 2023, it is California's 12th-largest recorded fire in modern history. The fire was contained on September 4, 2007, with the fire being brought under control on October 29, 2007.
The 2008 California wildfire season was one of the most devastating in the state of the 21st century. While 6,255 fires occurred, about two-thirds as many as in 2007, the total area burned— 1,593,690 acres —far exceeded that of previous years.
The 2015 California wildfire season was a series of wildfires that burned across the state of California. By the end of 2015 a total of 8,745 fires were recorded, burning 893,362 acres (3,615 km2) across the state. Approximately 3,159 structures were damaged or destroyed by wildfires, and at least 7 fatalities were recorded.
The Okanogan Complex Fire was a wildfire affecting Okanogan County in north-central Washington state. It was composed of five fires that were caused by lightning strikes on August 15, 2015, with two of the fires near Conconully merging days later on August 19. At its peak, it burned over 304,782 acres (123,341 ha) of land and forced the evacuations of numerous towns, including Conconully, Twisp and Winthrop. Over 1,250 firefighters were deployed to the Okanogan Complex. Three United States Forest Service firefighters were killed in an accident near Twisp on August 19. Traditional methods of containing such wildfires, such as creating bulldozer lines, were not readily available due to the irregular terrain and because an inversion layer trapped smoke in the valley, making it difficult to fly in water by helicopter.
The Frog Fire was a fatal fire that occurred during the 2015 California wildfire season that burned 4,863 acres (1,968 ha) of land in the Modoc National Forest. The fire was one of many fires that was started on July 30 during a lightning storm.
The Mendocino Complex Fire was a large complex of wildfires that burned in northern California for more than three months in 2018. It consisted of two wildfires, the River Fire and Ranch Fire, which burned in Mendocino, Lake, Colusa, and Glenn Counties in the U.S. State of California, with the Ranch Fire being California's single-largest recorded wildfire at the time until the August Complex fire in 2020. The Ranch Fire burned eight miles northeast of Ukiah, and the River Fire burned six miles north of Hopland, to the south of the larger Ranch Fire. First reported on July 27, 2018, both fires burned a combined total of 459,123 acres (1,858 km2), before they were collectively 100% contained on September 18, though hotspots persisted until the complex was fully brought under control on January 4, 2019. The Ranch Fire alone burned 410,203 acres (1,660 km2), making it the largest wildfire in modern California history at the time until the August Complex fire that occurred in 2020. The Ranch Fire also surpassed the size of the 315,577-acre Rush Fire, which burned across California and Nevada, as well as the Santiago Canyon Fire of 1889, which was previously believed to have been California's all-time largest wildfire.
The Holy Fire was a wildfire that burned in the Cleveland National Forest in Orange and Riverside Counties, California. The wildfire started on August 6, 2018, at around 1:15 PM PDT, in the vicinity of Trabuco Canyon. A suspected arsonist was booked into the Orange County jail in Santa Ana, California but found not guilty in 2023. The blaze burned 23,136 acres (94 km2) and destroyed 18 buildings, before it was fully contained on September 13, 2018. While the fire was actively spreading in early and mid-August, residents of the nearby cities of Corona, Temescal Valley, and Lake Elsinore were placed under evacuation orders.
The River Fire was a wildfire that broke out from a lightning storm early on August 16, 2020 in Monterey County, California, south of Salinas, near River Road and Mount Toro. Within its first day, it spread to 2,000 acres and was 10% contained; mandatory evacuations were ordered, while air and ground crews worked the fire.
The SCU Lightning Complex fires were wildfires that burned in the Diablo Range in California in August and September 2020 as part of the 2020 California wildfire season. The fire complex consisted of fires in Santa Clara, Alameda, Contra Costa, San Joaquin, Merced, and Stanislaus counties. The name is derived from the three-letter designation given to the California Department of Forestry and Fire Protection division responsible for the Santa Clara, Alameda, Contra Costa, and parts of San Joaquin and Stanislaus counties, and the complex consisted of several distinct fires occurring in this region.
The August 2020 California lightning wildfires were a series of 650 wildfires that ignited across Northern California in mid-August 2020, due to a siege of dry lightning from rare, massive summer thunderstorms, which were caused by an unusual combination of very hot, dry air at the surface, dry fuels, and advection of moisture from the remains of Tropical Storm Fausto northward into the Bay Area. These fires burned between 1,500,000 acres (6,100 km2) to 2,100,000 acres (8,500 km2) within a 2–3 week period. The August 2020 lightning fires included three enormous wildfires: the SCU Lightning Complex, the August Complex, and the LNU Lightning Complex. On September 10, 2020, the August Complex set a record for the single-largest wildfire in the modern history of California, reaching a total area burned of 471,185 acres (1,907 km2). On September 11, the August Complex merged with the Elkhorn Fire, another massive wildfire of 255,039 acres (1,032 km2), turning the August Complex into a monster wildfire of 746,607 acres (3,021 km2).
The August Complex was a massive wildfire that burned in the Coast Range of Northern California, in Glenn, Lake, Mendocino, Tehama, Trinity, and Shasta Counties. The complex originated as 38 separate fires started by lightning strikes on August 16–17, 2020. Four of the largest fires, the Doe, Tatham, Glade, and Hull fires, had burned together by August 30. On September 9, the Doe Fire, the main fire of the August Complex, surpassed the 2018 Mendocino Complex to become both the single-largest wildfire and the largest fire complex in recorded California history. On September 10, the combined Doe Fire also merged with the Elkhorn Fire and the Hopkins Fire, growing substantially in size. By the time it was extinguished on November 12, the August Complex fire had burned a total of 1,032,648 acres (417,898 ha), or 1,614 square miles (4,180 km2), about 1% of California's 100 million acres of land, an area larger than the state of Rhode Island.
The North Complex Fire was a massive wildfire complex that burned in the Plumas National Forest in Northern California in the counties of Plumas and Butte. Twenty-one fires were started by lightning on August 17, 2020; by September 5, all the individual fires had been put out with the exception of the Claremont and Bear Fires, which merged on that date, and the Sheep Fire, which was then designated a separate incident. On September 8, strong winds caused the Bear/Claremont Fire to explode in size, rapidly spreading to the southwest. On September 8, 2020, the towns of Berry Creek and Feather Falls were immediately evacuated at 3:15 p.m. PDT with no prior warning. By September 9, 2020, the towns of Berry Creek and Feather Falls had been leveled, with few homes left standing. The fire threatened the city of Oroville, before its westward spread was stopped. The fire killed 16 people and injured more than 100. The complex burned an estimated 318,935 acres (129,068 ha), and was 100% contained on December 3. The fire was managed by the U.S. Forest Service in conjunction with Cal Fire, with the primary incident base in Quincy. The North Complex Fire is the eighth-largest in California's history, and was the deadliest fire in the 2020 California wildfire season.
The SQF Complex fire—also called the SQF Lightning Complex—was a wildfire complex that burned in Tulare County in Central California in 2020. Comprising the Castle and Shotgun fires, it affected Sequoia National Forest and adjacent areas. Both fires began on August 19, 2020, and burned a combined total of 175,019 acres before the complex as a whole was declared 100 percent contained on January 6, 2021. In the course of the fires, 232 structures were destroyed. There were no fatalities.
The Slater and Devil fires were two fires that burned in Northern California and Southern Oregon during the 2020 California wildfire season. The fires burned 166,127 acres (67,229 ha), claimed two lives, injured 12 people, and were 100% contained on November 16. The fires caused some highway reconstructions and forest closures.
The Snake River Complex Fire was a large complex of wildfires that occurred through Idaho, Washington and Oregon. The fire started 42 miles south of Lewiston, Idaho, on July 7, 2021. It burned 109,444 acres (44,290 ha) before being contained August 20.
The Beckwourth Complex was a wildfire complex that burned in the Plumas National Forest in Plumas and Lassen counties. The two major fires of the complex, the Dotta Fire and the Sugar Fire, started on June 30 and July 2 northeast of Beckwourth, California. Started by lightning strikes, the two fires collectively burned 105,670 acres (42,763 ha). The complex resulted in the evacuation of numerous residential areas and the closure of portions of Plumas National Forest. In the community of Doyle, California, 33 homes were destroyed.
The Monument Fire was a wildfire west of Big Bar in Shasta-Trinity National Forest, Trinity County, California in the United States. The fire, which was started by a lightning strike, was first reported on July 30, 2021. The communities of Big Flat, Big Bar, Del Loma, and Cedar Flat were evacuated, and Highway 299 was closed in the area. The fire destroyed four structures, including three homes. By the evening of October 27, the fire had burned 223,124 acres (90,295 ha) and was fully contained, and is the fifteenth-largest fire in modern California history.
The River Complex 2021 was a wildfire complex burning in Klamath National Forest in Siskiyou County, California in the United States. The complex comprises over 20 wildfires that started as a result of lightning strikes during a series of thunderstorms in late July 2021. As of 25 October 2021, the fire had burned a total of 199,343 acres (80,671 ha) and became 100% contained. The largest fires in the complex were the Haypress–Summer Fire and the Cronan Fire.
The 2020 Maricopa County wildfires were a series of major and non-major wildfires that took place in Maricopa County, Arizona, from the month of May to the month of October. In the year 2020, Arizona saw one of its worst fire seasons in the states history. Due to the lack of precipitation needed in Arizona, the state fell into an ongoing drought from late 2020 and 2021. High winds were also present during the summer when fire season is mostly active in the state. These factors led to the wildfires in Maricopa County to be destructive and costly.
