![]() At times, these wildfires are fanned or made worse by strong, dry winds, known as Diablo winds when they occur in the northern part of the state and Santa Ana winds when they occur in the south. United States taxpayers pay about US$3 billion a year to fight wildfires, and big fires can lead to billions of dollars in property losses. Wildfires in California are growing more dangerous because of the accumulation of wood fuel in forests, higher population and greater electricity transmission and distribution lines. During the 2020 wildfire season alone, over 8,100 fires contributed to the burning of nearly 4.5 million acres of land. California land area totals 99,813,760 or roughly 100 million acres, so since 2000, the area that burned annually has ranged between 90,000 acres, or 0.09%, and 1,590,000 acres, or 1.59% of the total land of California. ![]() Pre-1800, when the area was much more forested and the ecology much more resilient, 4.4 million acres (1.8 million hectares) of forest and shrubland burned annually. California has dry, windy, and often hot weather conditions from spring through late autumn that can produce moderate to severe wildfires. This is a partial and incomplete list of California wildfires. Santa Ana winds in California expand fires and spread smoke over hundreds of miles, as in this October 2007 satellite image The Rim Fire consumed more than 250,000 acres (100,000 ha) of forest near Yosemite National Park, in 2013 For the current fires in California, see 2023 California wildfires. We display the following alerts on our map: Red Flag Warnings, Fire Weather Watches, High Wind Warnings and Wind Advisories."California wildfire" redirects here. National Weather Service Risk Layersįire risk data come from National Weather Service and are updated once every hour. ![]() The current map may contain hot spots up to 48 hours old. Hot spots should be considered points with no radius or resolution. every 30 minutes, and otherwise as time permits. NOAA's Hazard Mapping System Fire and Smoke Product (HMS) is based on locations of fires and significant smoke plumes detected by meteorological satellites. But because of the distance of the satellites, the nature of the measurements and obfuscation by smoke, the resolution is coarse and not 100% accurate. Agencies use this same data to help identify fires and their hot spots. The hot spots are an approximation and do not include all areas affected by fire, nor do they indicate with certainty an area was affected. Hot spots are locations identified by satellite analysts from the National Oceanic and Atmospheric Administration (NOAA). But because of the distance of the satellites, the nature of the measurements and obfuscation by smoke, the resolution is coarse and not 100 percent accurate. Agencies use this data to help identify fires and their hot spots. They are an approximation and do not include all areas affected by fire, nor do they indicate with certainty an area was affected. The perimeters are intended to provide an idea of the scope and extent of the fires with the most current data possible. Perimeters are not available for every incident.įire perimeters for incidents before Jare based on infrared and thermal imaging from NASA's MODIS and VIIRS-I products. Perimeters do not include prescribed or incident complex fires. This map displays all current wildfire fire perimeters available through NIFC that have not been 100% contained. Fire Perimetersįire perimeters are based on geographic data from the National Interagency Fire Center, updated once an hour. Butte/Tehama/Glenn Lightning Complex (Butte Zone)įires are labeled when they are larger than 500 acres, cause damage to property, or when people are injured or killed as a result of the fire.
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