2009 California wildfires

Background

The timing of "fire season" in California is variable, depending on the amount of prior winter and spring precipitation, the frequency and severity of weather such as heat waves and wind events, and moisture content in vegetation. Northern California typically sees wildfire activity between late spring and early fall, peaking in the summer with hotter and drier conditions. Occasional cold frontal passages can bring wind and lightning. The timing of fire season in Southern California is similar, peaking between late spring and fall. The severity and duration of peak activity in either part of the state is modulated in part by weather events: downslope/offshore wind events can lead to critical fire weather, while onshore flow and Pacific weather systems can bring conditions that hamper wildfire growth.

List of wildfires

Below is a list of all fires that exceeded 1000 acre during the 2009 fire season. The list is taken from CAL FIRE's list of large fires.

Weather conditions

Invasive, non-native vegetation dies and re-sprouts year after year creating an unnatural buildup of dead plant material. While periodic fires are natural, and many native plants depend upon fire to reproduce; the intensity and frequency of these fires is altered by the presence of non-natives.

In Southern California, the normal wildfire season begins in October, with the arrival of the infamous Santa Ana winds, and it is unusual to see fires spread so rapidly during other times of year. However, temperatures throughout the southern part of the state exceeded 100 °F (38 °C) for much of late August. The combination of high temperatures, low humidity and a large quantity of tinder-dry fuel, some of which had not burnt for decades, allowed some of the normal fires to quickly explode out of control despite the lack of winds to spread the flames. These conditions, along with extreme terrain in many undeveloped areas that slowed access to burn areas, made firefighting difficult.

Notable fires

Dozens of fires burned throughout California in August 2009. Some of the most notable are listed here.

Northern California

Alameda County

• The Corral Fire began on August 13 along Corral Hollow Road, outside the Carnegie State Vehicular Recreation Area, near Tracy in Alameda County. It burned 12500 acre of dry grass before being fully contained on August 16.

Mariposa County

• The Big Meadow Fire began on August 26 in Big Meadow, two miles (3 km) east of El Portal, just inside Yosemite National Park. As of September 4, this fire has burned 7425 acre in the Mariposa County section of Yosemite, resulting in the closure of several trails, campgrounds and the portion of State Highway 120 known as Tioga Road. The community of Foresta was evacuated but residents were allowed to return on September 4. The Big Meadow Fire is 96% contained as of September 6, with full containment expected by September 10. This blaze was the result of a prescribed burn gone out of control, leading some to question the judgment of Park authorities.

Placer County

• The Mammoth Fire started on July 16 and burned 643 acre in the American River Canyon and Mammoth Bar Recreation Area east of Auburn before it was contained on July 18. The fire closed the Foresthill Bridge, the highest bridge in California, for 2 days. It took 358 firefighters, 24 engines, and a helicopter to put out. The cause was undetermined as of July 18, 2009.
• The Foresthill Fire started on August 27 and burned 30 acre along the American River Canyon near the Foresthill Bridge before it was contained on August 28. This fire is close to the location of the Mammoth Fire. The fire took over 100 firefighters, 10 engines, 3 airtankers (planes), and 2 helicopters to extinguish. The cause was undetermined as of August 28, 2009.
• The 49 Fire was a small but very destructive fire that began on August 30 and was fully contained by CalFire on September 1. Although it burned only 343 acre, it destroyed 63 homes and 3 commercial structures in the unincorporated area of North Auburn in Placer County. The fire extensively damaged 3 more homes and 6 more businesses. The fire began along the east side of Highway 49, which led to the name 49 Fire. The fire quickly spread north and east. The fire spread so quickly that some residents barely escaped their burning homes. Auburn Municipal Airport was closed during the fire, which burned right up to the runway. This was the second fire to burn the area in 5 years.

Santa Cruz/Monterey/San Benito Counties

• The Lockheed Fire began on August 12 near the Lockheed Martin Space Systems campus in Santa Cruz County. A total of 7817 acre burned and thirteen structures were destroyed, including four seasonal cabins but no primary residences. No cause has been identified. The communities of Swanton and Bonny Doon were evacuated and a state of emergency was declared by Lieutenant Governor John Garamendi on August 14. State fire crews achieved 100% containment on August 23, at a cost of .
• The Bryson Fire started from a mobile home fire on Bryson-Hesperia Road in the Monterey County town of Lockwood. It burned 3383 acre and five structures, including three homes, between August 26 and August 28.
• The Gloria Fire began on August 27 along Camphora Gloria Road near the town of Soledad. It burned 6437 acre in Monterey and San Benito counties, destroying a house and another structure before CalFire contained it on August 31 at a cost of US$4 million. The fire was set off by fireworks used to scare away birds outside of a winery and a criminal investigation is underway to determine who is responsible.
• The Loma Fire (October 25–27), 669 acre (initially reported as 600 acres) began near Loma Prieta Way in Santa Clara County and spread to the Santa Cruz County area of Maymens Flat – Highland Road, Eureka Canyon and Ormsby. One residence destroyed with 160 structures threatened and evacuations in place for north Ormsby Cutoff until October 26. 1,742 firefighters with 4 injuries reported; cost $2.7 million. High winds contributed to the spread in the Summit area of the Santa Cruz Mountains in an area which had 6 in of rain on October 13.

Yuba County

• The Yuba Fire was started after a red-tailed hawk flew into a power line on August 14, and burned 3891 acre before being contained on August 21 at a cost of US$12.1 million. Two residences in Yuba County burned and power lines transporting electricity from a hydroelectric facility were threatened.

Southern California

Los Angeles County

• The Morris Fire (August 25 – September 3, 2168 acre) began near Morris Dam in the Angeles National Forest. This fire is thought to have been caused by arson.
• The Station Fire (August 26 – October 16, 160577 acre, 209 structures destroyed, including 89 homes) started in the Angeles National Forest near the U.S. Forest Service ranger station on the Angeles Crest Highway (State Highway 2). Two firefighters, Captain Tedmund Hall and Firefighter Specialist Arnie Quinones were killed on August 30 while attempting to escape the flames when their fire truck plunged off a cliff.

San Bernardino County

• The Sheep Fire (October 3–10, 7128 acre) started near Sheep Canyon Road near Lytle Creek east of Mount Baldy and west of the Cajon Pass in the San Gabriel Mountains. Mandatory evacuations were in place for all Wrightwood residents October 4–6; the fireline held at 0.3 mi from Wrightwood homes. Five structures had been destroyed in the Lone Pine and Swarthout Canyon areas including one residence. Eight firefighters have been injured but no fatalities have been reported. Below-freezing temperatures in the mountain areas helped fire crews in containment on October 6. Suppression costs : $7,977,000.

Santa Barbara County

• The Jesusita Fire was a wildfire that began at approximately 1:45 PM on May 5, 2009, in the hills of Santa Barbara, California. The fire burned 8733 acre, destroyed 80 homes and damaged 15 more before being 100% contained.
• The La Brea Fire began near La Brea Creek in Santa Barbara County, inside of Los Padres National Forest. The fire burned 89489 acre of chaparral between August 8 and August 22, but only destroyed two structures—a cabin and an unused ranger station.

Ventura County

• The Guiberson Fire in Ventura County has burnt an estimated 8500 acre, destroying two outbuildings and injuring two firefighters. Governor Schwarzenegger declared a state of emergency. The fire, which started between Fillmore and Moorpark, has caused the evacuation of almost 600 homes in Meridian Hills and Bardsdale; about 1,000 structures were threatened, in addition to oil pipelines in the area. On September 27, the Guiberson Fire was 100% contained, after burning approximately 17500 acre. The cause of the fire is still unknown.{{cite news |access-date=September 23, 2009

Notes

References

References

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6. (April 25, 2024). "Weather: Fire Season Climatology (Northern California)". [[National Wildfire Coordinating Group]].
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