(CNN)Hundreds of California residents are under evacuation orders after new fires were sparked Wednesday, with another heat wave expected to make fighting the flames even more challenging.

California is already battling the massive Caldor Fire, which has scorched 126,566 acres since it began August 14 and was 12% contained Wednesday evening, according to Cal Fire. “The fire continues to burn very aggressively here in El Dorado County,” Mark Ghilarducci, who heads the California Governor’s Office of Emergency Services, said in a video posted on Facebook. These 7 states are under air quality alerts as wildfires rage in the WestThese 7 states are under air quality alerts as wildfires rage in the WestThese 7 states are under air quality alerts as wildfires rage in the WestAdditionally, five new fires were sparked on Wednesday alone in California, which is experiencing a devastating wildfire season. As of Wednesday morning, 37,252 people in California are under evacuation orders due to the wildfires, according to the office of emergency services. The Airola Fire was sparked in Calaveras County and prompted officials to issue evacuation warnings and orders, according to the county’s sheriff’s office. The fire scorched between 700 and 1,000 acres as of Wednesday and was 0% contained, the sheriff’s office said.Read MoreIn San Bernardino County, the South Fire scorched 500 acres after it started Wednesday and was 0% contained, Cal Fire said. A firefighter works on a burning house as the South Fire burns in Lytle Creek, San Bernardino County, California.A firefighter works on a burning house as the South Fire burns in Lytle Creek, San Bernardino County, California.A firefighter works on a burning house as the South Fire burns in Lytle Creek, San Bernardino County, California.Parts of the county were put under evacuation orders and warnings while other residents were advised to shelter in place, the San Bernardino County Sheriff’s Department said Wednesday in a Facebook post. The evacuation orders are in effect for 1,000 people, officials said. Laura Mills told CNN affiliate KCBS she lives in in the area where the fire is currently burning. “I came home and got the dogs,” she told the news outlet. “Hopefully our house is going to make it.”Meanwhile, the Bennet Fire began Wednesday in Nevada County and prompted officials to issue evacuations in some areas as well as order others to shelter in place, the county’s office of emergency services said in a tweet. As the 59-acre fire was 60% contained Wednesday evening, Cal Fire said, and some of those evacuation orders were lifted. Overall, California’s wildfire season has seen more than 1.62 million acres scorched so far this year — and that number will only go up as fires continue to grow.Temperatures are expected to be 5 to 10 degrees above normal through the weekend in California, CNN meteorologist Michael Guy said.And while this isn’t uncommon for the region during this time of year, “any type of temperature increase is not good for the firefighters or any personnel fighting the fires with their exposure to intense temperatures as it is,” Guy said. He noted that the warmer weather is not expected to worsen the current fire conditions. Arroyo Grande Hotshots firefighters are seen behind the flames of a backfire they are setting to battle the French Fire on August 24 near Wofford Heights, California.Arroyo Grande Hotshots firefighters are seen behind the flames of a backfire they are setting to battle the French Fire on August 24 near Wofford Heights, California. Photos: Wildfires raging in the WestArroyo Grande Hotshots firefighters are seen behind the flames of a backfire they are setting to battle the French Fire on August 24 near Wofford Heights, California.Hide Caption 1 of 56Homeowners Jose Lamas, center, his wife, Maria Covarrubias, right, and his daughter Astrid Covarrubias walk through the smoke after visiting their burned-out home, which was in the path of the South Fire in Lytle Creek, San Bernardino County, California on August 25.Homeowners Jose Lamas, center, his wife, Maria Covarrubias, right, and his daughter Astrid Covarrubias walk through the smoke after visiting their burned-out home, which was in the path of the South Fire in Lytle Creek, San Bernardino County, California on August 25. Photos: Wildfires raging in the WestHomeowners Jose Lamas, center, his wife, Maria Covarrubias, right, and his daughter Astrid Covarrubias walk through the smoke after visiting their burned-out home, which was in the path of the South Fire in Lytle Creek, San Bernardino County, California on August 25.Hide Caption 2 of 56Crews battle California's Caldor Fire as it moves east toward Lake Tahoe on Monday, August 23.Crews battle California's Caldor Fire as it moves east toward Lake Tahoe on Monday, August 23. Photos: Wildfires raging in the WestCrews battle California’s Caldor Fire as it moves east toward Lake Tahoe on Monday, August 23.Hide Caption 3 of 56This aerial photo, taken on Thursday, August 19, shows burned homes at the Creekside Mobile Home Park a day after they were destroyed by the Cache Fire in Clearlake, California.This aerial photo, taken on Thursday, August 19, shows burned homes at the Creekside Mobile Home Park a day after they were destroyed by the Cache Fire in Clearlake, California. Photos: Wildfires raging in the WestThis aerial photo, taken on Thursday, August 19, shows burned homes at the Creekside Mobile Home Park a day after they were destroyed by the Cache Fire in Clearlake, California.Hide Caption 4 of 56Firefighters dig a containment line on the Caldor Fire near Pollock Pines, California, on Wednesday, August 18.Firefighters dig a containment line on the Caldor Fire near Pollock Pines, California, on Wednesday, August 18. Photos: Wildfires raging in the WestFirefighters dig a containment line on the Caldor Fire near Pollock Pines, California, on Wednesday, August 18.Hide Caption 5 of 56Smoke and haze from wildfires obscure the Golden Gate Bridge and the San Francisco skyline on August 18.Smoke and haze from wildfires obscure the Golden Gate Bridge and the San Francisco skyline on August 18. Photos: Wildfires raging in the WestSmoke and haze from wildfires obscure the Golden Gate Bridge and the San Francisco skyline on August 18.Hide Caption 6 of 56In this long-exposure photo, embers light up hillsides as the Dixie Fire burns near Milford, California, on August 17.In this long-exposure photo, embers light up hillsides as the Dixie Fire burns near Milford, California, on August 17. Photos: Wildfires raging in the WestIn this long-exposure photo, embers light up hillsides as the Dixie Fire burns near Milford, California, on August 17.Hide Caption 7 of 56Destiney Barnard holds Raymond William Goetchius while stranded at a gas station in Doyle, California, on August 17. Barnard's car broke down as she was helping Raymond and his family flee the Dixie Fire.Destiney Barnard holds Raymond William Goetchius while stranded at a gas station in Doyle, California, on August 17. Barnard's car broke down as she was helping Raymond and his family flee the Dixie Fire. Photos: Wildfires raging in the WestDestiney Barnard holds Raymond William Goetchius while stranded at a gas station in Doyle, California, on August 17. Barnard’s car broke down as she was helping Raymond and his family flee the Dixie Fire.Hide Caption 8 of 56Destroyed property is seen August 17 after the Caldor Fire passed through Grizzly Flats, California.Destroyed property is seen August 17 after the Caldor Fire passed through Grizzly Flats, California. Photos: Wildfires raging in the WestDestroyed property is seen August 17 after the Caldor Fire passed through Grizzly Flats, California.Hide Caption 9 of 56Firefighters spray water on trees being burned by the Dixie Fire near Janesville, California, on August 17.Firefighters spray water on trees being burned by the Dixie Fire near Janesville, California, on August 17. Photos: Wildfires raging in the WestFirefighters spray water on trees being burned by the Dixie Fire near Janesville, California, on August 17.Hide Caption 10 of 56A firefighting helicopter flies in front of the sun, which was shrouded in thick wildfire smoke near Lakeview, Oregon, on August 15.A firefighting helicopter flies in front of the sun, which was shrouded in thick wildfire smoke near Lakeview, Oregon, on August 15. Photos: Wildfires raging in the WestA firefighting helicopter flies in front of the sun, which was shrouded in thick wildfire smoke near Lakeview, Oregon, on August 15.Hide Caption 11 of 56Wind blows smoke away for a moment, revealing damage from the Parleys Canyon Fire in Utah on August 14.Wind blows smoke away for a moment, revealing damage from the Parleys Canyon Fire in Utah on August 14. Photos: Wildfires raging in the WestWind blows smoke away for a moment, revealing damage from the Parleys Canyon Fire in Utah on August 14.Hide Caption 12 of 56Crews battle a fire in Newhall, California, on August 12.Crews battle a fire in Newhall, California, on August 12. Photos: Wildfires raging in the WestCrews battle a fire in Newhall, California, on August 12.Hide Caption 13 of 56A table and chairs sit in front of a destroyed home in Greenville, California, on August 12.A table and chairs sit in front of a destroyed home in Greenville, California, on August 12. Photos: Wildfires raging in the WestA table and chairs sit in front of a destroyed home in Greenville, California, on August 12.Hide Caption 14 of 56A firefighter battles the Dixie Fire near Taylorsville, California, on August 10.A firefighter battles the Dixie Fire near Taylorsville, California, on August 10. Photos: Wildfires raging in the WestA firefighter battles the Dixie Fire near Taylorsville, California, on August 10.Hide Caption 15 of 56Smoke plumes rise from the Kwis Fire near Eugene, Oregon, on August 10.Smoke plumes rise from the Kwis Fire near Eugene, Oregon, on August 10. Photos: Wildfires raging in the WestSmoke plumes rise from the Kwis Fire near Eugene, Oregon, on August 10.Hide Caption 16 of 56A firefighter works to extinguish a controlled burn, a preventative measure, to protect a home in Greenville, California, on August 9.A firefighter works to extinguish a controlled burn, a preventative measure, to protect a home in Greenville, California, on August 9. Photos: Wildfires raging in the WestA firefighter works to extinguish a controlled burn, a preventative measure, to protect a home in Greenville, California, on August 9.Hide Caption 17 of 56Firefighters battling the Dixie Fire clear a fallen tree from a roadway in Plumas County, California, on August 6.Firefighters battling the Dixie Fire clear a fallen tree from a roadway in Plumas County, California, on August 6. Photos: Wildfires raging in the WestFirefighters battling the Dixie Fire clear a fallen tree from a roadway in Plumas County, California, on August 6.Hide Caption 18 of 56Flames from the Dixie Fire consume a pickup truck on Highway 89, south of Greenville, California, on August 5.Flames from the Dixie Fire consume a pickup truck on Highway 89, south of Greenville, California, on August 5. Photos: Wildfires raging in the WestFlames from the Dixie Fire consume a pickup truck on Highway 89, south of Greenville, California, on August 5.Hide Caption 19 of 56Operations Chief Jay Walter passes the historic Sierra Lodge as the Dixie Fire burns through Greenville, California, on August 4. The fire leveled multiple historic buildings and dozens of homes in central Greenville.Operations Chief Jay Walter passes the historic Sierra Lodge as the Dixie Fire burns through Greenville, California, on August 4. The fire leveled multiple historic buildings and dozens of homes in central Greenville. Photos: Wildfires raging in the WestOperations Chief Jay Walter passes the historic Sierra Lodge as the Dixie Fire burns through Greenville, California, on August 4. The fire leveled multiple historic buildings and dozens of homes in central Greenville.Hide Caption 20 of 56Firefighters work at a Greenville home that was engulfed by the Dixie Fire on August 4.Firefighters work at a Greenville home that was engulfed by the Dixie Fire on August 4. Photos: Wildfires raging in the WestFirefighters work at a Greenville home that was engulfed by the Dixie Fire on August 4.Hide Caption 21 of 56The Dixie Fire burns near Taylorsville, California, on July 29.The Dixie Fire burns near Taylorsville, California, on July 29. Photos: Wildfires raging in the WestThe Dixie Fire burns near Taylorsville, California, on July 29.Hide Caption 22 of 56California Gov. Gavin Newsom, left, and Nevada Gov. Steve Sisolak tour an area destroyed by the Tamarack Fire in Gardnerville, Nevada, on July 28. California Gov. Gavin Newsom, left, and Nevada Gov. Steve Sisolak tour an area destroyed by the Tamarack Fire in Gardnerville, Nevada, on July 28. Photos: Wildfires raging in the WestCalifornia Gov. Gavin Newsom, left, and Nevada Gov. Steve Sisolak tour an area destroyed by the Tamarack Fire in Gardnerville, Nevada, on July 28. Hide Caption 23 of 56Firefighter Brentt Call walks through a burned-over area of the Bootleg Fire near Klamath Falls, Oregon, on July 27.Firefighter Brentt Call walks through a burned-over area of the Bootleg Fire near Klamath Falls, Oregon, on July 27. Photos: Wildfires raging in the WestFirefighter Brentt Call walks through a burned-over area of the Bootleg Fire near Klamath Falls, Oregon, on July 27.Hide Caption 24 of 56Cal Fire Capts. Tristan Gale, left, and Derek Leong monitor a firing operation in California's Lassen National Forest on July 26. Crews had set a ground fire to stop the Dixie Fire from spreading.Cal Fire Capts. Tristan Gale, left, and Derek Leong monitor a firing operation in California's Lassen National Forest on July 26. Crews had set a ground fire to stop the Dixie Fire from spreading. Photos: Wildfires raging in the WestCal Fire Capts. Tristan Gale, left, and Derek Leong monitor a firing operation in California’s Lassen National Forest on July 26. Crews had set a ground fire to stop the Dixie Fire from spreading.Hide Caption 25 of 56Firefighters try to reach a fire site in Quincy, California, on July 25.Firefighters try to reach a fire site in Quincy, California, on July 25. Photos: Wildfires raging in the WestFirefighters try to reach a fire site in Quincy, California, on July 25.Hide Caption 26 of 56Volunteers sort clothing at a donation shelter for those affected by the Bootleg Fire in Bly, Oregon.Volunteers sort clothing at a donation shelter for those affected by the Bootleg Fire in Bly, Oregon. Photos: Wildfires raging in the WestVolunteers sort clothing at a donation shelter for those affected by the Bootleg Fire in Bly, Oregon.Hide Caption 27 of 56Scott Griffin surveys his property, which was destroyed by the Bootleg Fire in Sycan Estates, Oregon.Scott Griffin surveys his property, which was destroyed by the Bootleg Fire in Sycan Estates, Oregon. Photos: Wildfires raging in the WestScott Griffin surveys his property, which was destroyed by the Bootleg Fire in Sycan Estates, Oregon.Hide Caption 28 of 56Flames consume a home as the Dixie Fire tears through the Indian Falls community of Plumas County, California, on July 24.Flames consume a home as the Dixie Fire tears through the Indian Falls community of Plumas County, California, on July 24. Photos: Wildfires raging in the WestFlames consume a home as the Dixie Fire tears through the Indian Falls community of Plumas County, California, on July 24.Hide Caption 29 of 56People stand behind the fire line as flames from the Steptoe Canyon Fire spread through dry grass in Colton, Washington, on July 22.People stand behind the fire line as flames from the Steptoe Canyon Fire spread through dry grass in Colton, Washington, on July 22. Photos: Wildfires raging in the WestPeople stand behind the fire line as flames from the Steptoe Canyon Fire spread through dry grass in Colton, Washington, on July 22.Hide Caption 30 of 56Plumes of smoke from the Dixie Fire rise above California's Plumas National Forest, near the Pacific Gas and Electric Rock Creek Power House, on July 21.Plumes of smoke from the Dixie Fire rise above California's Plumas National Forest, near the Pacific Gas and Electric Rock Creek Power House, on July 21. Photos: Wildfires raging in the WestPlumes of smoke from the Dixie Fire rise above California’s Plumas National Forest, near the Pacific Gas and Electric Rock Creek Power House, on July 21.Hide Caption 31 of 56Firefighters walk near a wildfire in Topanga, California, on July 19.Firefighters walk near a wildfire in Topanga, California, on July 19. Photos: Wildfires raging in the WestFirefighters walk near a wildfire in Topanga, California, on July 19.Hide Caption 32 of 56A firefighter does mop-up work in the Fremont-Winema National Forest, which has been struggling with the Bootleg Fire in Oregon.A firefighter does mop-up work in the Fremont-Winema National Forest, which has been struggling with the Bootleg Fire in Oregon. Photos: Wildfires raging in the WestA firefighter does mop-up work in the Fremont-Winema National Forest, which has been struggling with the Bootleg Fire in Oregon.Hide Caption 33 of 56A car is charred by the Bootleg Fire along a mountain road near Bly, Oregon.A car is charred by the Bootleg Fire along a mountain road near Bly, Oregon. Photos: Wildfires raging in the WestA car is charred by the Bootleg Fire along a mountain road near Bly, Oregon.Hide Caption 34 of 56Nicolas Bey, 11, hugs his father, Sayyid, near a donated trailer they are using after their home was burned in the Bootleg Fire near Beatty, Oregon.Nicolas Bey, 11, hugs his father, Sayyid, near a donated trailer they are using after their home was burned in the Bootleg Fire near Beatty, Oregon. Photos: Wildfires raging in the WestNicolas Bey, 11, hugs his father, Sayyid, near a donated trailer they are using after their home was burned in the Bootleg Fire near Beatty, Oregon.Hide Caption 35 of 56Firefighters extinguish hot spots in an area affected by the Bootleg Fire near Bly, Oregon.Firefighters extinguish hot spots in an area affected by the Bootleg Fire near Bly, Oregon. Photos: Wildfires raging in the WestFirefighters extinguish hot spots in an area affected by the Bootleg Fire near Bly, Oregon.Hide Caption 36 of 56A bear cub clings to a tree after being spotted by a safety officer at the Bootleg Fire in Oregon.A bear cub clings to a tree after being spotted by a safety officer at the Bootleg Fire in Oregon. Photos: Wildfires raging in the WestA bear cub clings to a tree after being spotted by a safety officer at the Bootleg Fire in Oregon.Hide Caption 37 of 56Firefighters work to protect Markleeville, California, from the Tamarack Fire on July 17. The Tamarack Fire was started by a lightning strike. Firefighters work to protect Markleeville, California, from the Tamarack Fire on July 17. The Tamarack Fire was started by a lightning strike. Photos: Wildfires raging in the WestFirefighters work to protect Markleeville, California, from the Tamarack Fire on July 17. The Tamarack Fire was started by a lightning strike. Hide Caption 38 of 56The Tamarack Fire burns in Markleeville, near the California-Nevada border, on July 17.The Tamarack Fire burns in Markleeville, near the California-Nevada border, on July 17. Photos: Wildfires raging in the WestThe Tamarack Fire burns in Markleeville, near the California-Nevada border, on July 17.Hide Caption 39 of 56A member of the Northwest Incident Management Team 12 holds a map of the Chuweah Creek Fire as wildfires devastated Nespelem, Washington, on July 16.A member of the Northwest Incident Management Team 12 holds a map of the Chuweah Creek Fire as wildfires devastated Nespelem, Washington, on July 16. Photos: Wildfires raging in the WestA member of the Northwest Incident Management Team 12 holds a map of the Chuweah Creek Fire as wildfires devastated Nespelem, Washington, on July 16.Hide Caption 40 of 56A cloud from the Bootleg Fire drifts into the air near Bly, Oregon, on July 16.A cloud from the Bootleg Fire drifts into the air near Bly, Oregon, on July 16. Photos: Wildfires raging in the WestA cloud from the Bootleg Fire drifts into the air near Bly, Oregon, on July 16.Hide Caption 41 of 56Firefighters spray water from the Union Pacific Railroad's fire train while battling the Dixie Fire in California's Plumas National Forest on July 16.Firefighters spray water from the Union Pacific Railroad's fire train while battling the Dixie Fire in California's Plumas National Forest on July 16. Photos: Wildfires raging in the WestFirefighters spray water from the Union Pacific Railroad’s fire train while battling the Dixie Fire in California’s Plumas National Forest on July 16.Hide Caption 42 of 56Horses climb a hillside that was burned by the Chuweah Creek Fire in eastern Washington.Horses climb a hillside that was burned by the Chuweah Creek Fire in eastern Washington. Photos: Wildfires raging in the WestHorses climb a hillside that was burned by the Chuweah Creek Fire in eastern Washington.Hide Caption 43 of 56Fire from the Bootleg Fire illuminates smoke near Bly, Oregon, on the night of July 16.Fire from the Bootleg Fire illuminates smoke near Bly, Oregon, on the night of July 16. Photos: Wildfires raging in the WestFire from the Bootleg Fire illuminates smoke near Bly, Oregon, on the night of July 16.Hide Caption 44 of 56A firefighter battles the Bootleg Fire in the Fremont-Winema National Forest, along the Oregon and California border, on July 15.A firefighter battles the Bootleg Fire in the Fremont-Winema National Forest, along the Oregon and California border, on July 15. Photos: Wildfires raging in the WestA firefighter battles the Bootleg Fire in the Fremont-Winema National Forest, along the Oregon and California border, on July 15.Hide Caption 45 of 56A firefighting aircraft drops flame retardant on the Bootleg Fire in Bly, Oregon, on July 15.A firefighting aircraft drops flame retardant on the Bootleg Fire in Bly, Oregon, on July 15. Photos: Wildfires raging in the WestA firefighting aircraft drops flame retardant on the Bootleg Fire in Bly, Oregon, on July 15.Hide Caption 46 of 56Firefighters dig away at hot spots underneath stumps and brush after flames from the Snake River Complex Fire swept through the area south of Lewiston, Idaho, on July 15.Firefighters dig away at hot spots underneath stumps and brush after flames from the Snake River Complex Fire swept through the area south of Lewiston, Idaho, on July 15. Photos: Wildfires raging in the WestFirefighters dig away at hot spots underneath stumps and brush after flames from the Snake River Complex Fire swept through the area south of Lewiston, Idaho, on July 15.Hide Caption 47 of 56Burned cars sit outside a home that was destroyed by the Chuweah Creek Fire in Nespelem, Washington.Burned cars sit outside a home that was destroyed by the Chuweah Creek Fire in Nespelem, Washington. Photos: Wildfires raging in the WestBurned cars sit outside a home that was destroyed by the Chuweah Creek Fire in Nespelem, Washington.Hide Caption 48 of 56Evacuee Dee McCarley hugs her cat Bunny at a Red Cross center in Klamath Falls, Oregon, on July 14.Evacuee Dee McCarley hugs her cat Bunny at a Red Cross center in Klamath Falls, Oregon, on July 14. Photos: Wildfires raging in the WestEvacuee Dee McCarley hugs her cat Bunny at a Red Cross center in Klamath Falls, Oregon, on July 14.Hide Caption 49 of 56An airplane drops fire retardant on the Chuweah Creek Fire in Washington on July 14.An airplane drops fire retardant on the Chuweah Creek Fire in Washington on July 14. Photos: Wildfires raging in the WestAn airplane drops fire retardant on the Chuweah Creek Fire in Washington on July 14.Hide Caption 50 of 56Operations Section Chief Bert Thayer examines a map of the Bootleg Fire in Chiloquin, Oregon, on July 13.Operations Section Chief Bert Thayer examines a map of the Bootleg Fire in Chiloquin, Oregon, on July 13. Photos: Wildfires raging in the WestOperations Section Chief Bert Thayer examines a map of the Bootleg Fire in Chiloquin, Oregon, on July 13.Hide Caption 51 of 56Fire consumes a home as the Sugar Fire, part of the Beckwourth Complex Fire, tears through Doyle, California, on July 10. It's the <a href="https://www.cnn.com/2021/07/14/weather/california-doyle-second-wildfire-in-a-year/index.html" target="_blank">second time in less than a year</a> that the small town has been ravaged by a wildfire.Fire consumes a home as the Sugar Fire, part of the Beckwourth Complex Fire, tears through Doyle, California, on July 10. It's the <a href="https://www.cnn.com/2021/07/14/weather/california-doyle-second-wildfire-in-a-year/index.html" target="_blank">second time in less than a year</a> that the small town has been ravaged by a wildfire. Photos: Wildfires raging in the WestFire consumes a home as the Sugar Fire, part of the Beckwourth Complex Fire, tears through Doyle, California, on July 10. It’s the second time in less than a year that the small town has been ravaged by a wildfire.Hide Caption 52 of 56Men hug a member of the Red Cross at a Bootleg Fire evacuation center in Klamath Falls, Oregon.Men hug a member of the Red Cross at a Bootleg Fire evacuation center in Klamath Falls, Oregon. Photos: Wildfires raging in the WestMen hug a member of the Red Cross at a Bootleg Fire evacuation center in Klamath Falls, Oregon.Hide Caption 53 of 56Embers blow across a field as the Sugar Fire burns in Doyle, California, on July 9.Embers blow across a field as the Sugar Fire burns in Doyle, California, on July 9. Photos: Wildfires raging in the WestEmbers blow across a field as the Sugar Fire burns in Doyle, California, on July 9.Hide Caption 54 of 56Firefighters monitor the Sugar Fire in Doyle, California, on July 9.Firefighters monitor the Sugar Fire in Doyle, California, on July 9. Photos: Wildfires raging in the WestFirefighters monitor the Sugar Fire in Doyle, California, on July 9.Hide Caption 55 of 56In this long-exposure photograph, taken early on July 2, flames surround a drought-stricken Shasta Lake during the Salt Fire in Lakehead, California.In this long-exposure photograph, taken early on July 2, flames surround a drought-stricken Shasta Lake during the Salt Fire in Lakehead, California. Photos: Wildfires raging in the WestIn this long-exposure photograph, taken early on July 2, flames surround a drought-stricken Shasta Lake during the Salt Fire in Lakehead, California.Hide Caption 56 of 5602 French Fire CA 082402 South Fire CA 082501 western wildfires 0823 caldor fire02 western wildfires 0819 cache fire03 western wildfires 0818 caldor fire01 us wildfires 081802 us wildfires 081803 us wildfires 081803 western wildfires 0817 caldor fire01 western wildfires 0817 dixie firewestern wildfires 0815 oregon04 us wildfires 081802 western wildfires 0812 californiaDixie fire damage 081201 dixie fire 081001 wildfire oregon 081001b wildfire california 080901 western wildfires 0807 dixie fire04 CA dixie fire 080501 dixie fire greenville 080404 dixie fire greenville 080403 Dixie Wildfire Taylorsville 0729  RESTRICTED02 western wildfires 072801b western wildfires 0727Dixie Wildfire Lassen National Forest California 072601 western wildfires 0725 Dixie fires california01 western wildfires 0724 Bootleg fires oregon02 western wildfires 0724 Bootleg fires oregon01 dixie fire 07 24 2021 indian falls california01 western wildfires 072203 western wildfires 0722western wildfires 0719 CALIFORNIA0721 Wildfire20721 Wildfire Bootleg01 bootleg fire 071902 bootleg fire 0719western wildfires 0718 OREGON0717 Wildfire302 western wildfires03 western wildfires04 western wildfires05 western wildfires06 western wildfires07 western wildfires20 western wildfires19 western wildfires08 western wildfires10 western wildfires11 western wildfires09 western wildfires12 western wildfires14 western wildfires15 western wildfires16 western wildfires17 western wildfires18 western wildfiresWildfire smoke threatens possible Covid-19 surge, study showsThe 92 large wildfires currently burning in the US have scorched more than 2.5 million acres, according to the National Interagency Fire Center, and their smoke has put thousands under poor air quality alerts.Thick wildfire smoke blanketed the resort communities of Lake Tahoe this week as the Caldor Fire burning east of Sacramento, California, continued to swell.Tahoe, Reno areas have worst air quality in country due to smoke, raising concerns about a Covid surgeTahoe, Reno areas have worst air quality in country due to smoke, raising concerns about a Covid surgeTahoe, Reno areas have worst air quality in country due to smoke, raising concerns about a Covid surgeThe Air Quality Index, a measure of how unhealthy the air is, spiked to an astonishing 694 in Tahoe City on Monday, according to AirNow.gov. In Reno on Tuesday, the AQI hit 453. An AQI between 300 and 500 is considered “a health warning of emergency conditions” in which even healthy individuals are at risk for respiratory illness. AQI below 50 indicates the air is healthy and poses little to no risk, even to individuals with respiratory disease.The index has been around or above 300 in the Tahoe and Reno areas every day since Friday.Washoe County, which includes Reno, issued a Stage 3 Emergency air quality advisory on Monday for the first time, warning residents to stay indoors with windows and doors closed. Compounding the problem, researchers have found recently that wildfire smoke has a significant impact on the severity of coronavirus cases. A study published this month in the journal Science Advances found increases in fine particulate matter from wildfire smoke in 2020 led to a surge in Covid-19 cases and deaths in California, Oregon and Washington.”What’s happening in Lake Tahoe and in Reno is very concerning,” Francesca Dominici, a researcher at Harvard T.H. Chan School of Public Health and co-author on the wildfire smoke study, told CNN, “because we know that exposure to a high level of fine particulate matter can amplify the negative effect of the pandemic.”Covid-19 cases and hospitalizations have been climbing precipitously in the Reno area over the past several weeks, according to Washoe County health data. Coronavirus cases in Washoe County on Monday were up 24% compared to the week before, and hospitalizations increased by more than 18%.

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