Poor air quality cause for concern at this weekend's Santa Rosa Marathon

Thousands of people are signed up for two days of running in Santa Rosa: 5k and 10k races on Saturday and a half-marathon and full marathon on Sunday. The poor air quality is causing some concern.

Air quality deteriorates drastically
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The poor air quality levels much of Northern California is experiencing from the wildfires has crept into the South Bay Friday. KTVU's Jesse Gary reports on health experts concerns from exposure to particulate matter.

Caldor Fire hurts Tahoe tourism industry, delays start of schools
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The Caldor Fire continues to menace the Lake Tahoe region. Businesses catering to tourists are closing up or fearing the loss of customers as the fire is upending Labor Day vacation plans. Some schools have also delayed their return to classrooms due to the fire's hazards.

Caldor Fire advances on Lake Tahoe, new evacuations near Basin area

People living above the ridge of the Lake Tahoe Basin are being forced to evacuate due to the advancing Caldor Fire on Thursday. 

Caldor Fire advances on Lake Tahoe, new evacuations near Basin area
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The Caldor Fire continues to get close to Lake Tahoe. Thousands of people are being forced to flee their homes and many more are preparing for the possibility of more mandatory evacuations.

Crews struggle to stop Caldor Fire from bearing down on Lake Tahoe

A Northern California fire that gutted hundreds of homes advanced toward Lake Tahoe on Wednesday as thousands of firefighters tried to box in the flames, and a thick yellow haze of the nation’s worst air enveloped tourists.

DC-10 makes drop on Caldor Fire
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A DC-10 makes a retardant drop on the Caldor Fire around Noon on Thursday, August 26, 2021.

New Airola fire erupts in Calaveras county, while Caldor fire continues to grow
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The Caldor Fire is just 12% contained but progress is being made with a military grade helicopter which makes night firefighting possible. A new fire called Airola is burning in Calaveras county causing evacuations in Columbia, Murphys and Douglas Flat.

High-tech helicopters coming from SoCal to battle Caldor Fire

Cal Fire Public Information Officer David Clark said for the past two nights, Chinook type-1 helicopters have been brought up from Southern California.

Guy Fieri is back feeding California firefighters battling the Dixie Fire

As California's wildfire season rages on, Celebrity Chef Guy Fieri is once again giving back to crews on the front lines with thousands of freshly cooked meals.

Guy Fieri feeds California firefighters battling Dixie Fire
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Celebrity chef Guy Fieri spoke to KTVU while cooking for firefighters and first responders in Lassen County who have been trying to contain and extinguish the Dixie Fire.

Dixie Fire containment grows, but Caldor Fire looms as threat to Lake Tahoe
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The Dixie Fire has grown to the size of Marin County and is 43% contained, allowing authorities to lift some evacuation orders. The Caldor Fire continues to push concerning amount of smoke into Lake Tahoe and has raised concerns that the basin could be burned if the fire spreads.

Biden approves major disaster declaration for California wildfires
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President Biden has granted Gov. Newsom's request for a major disaster declaration for parts of California that have been hurt by the Dixie and River wildfires. The declaration helps victims more easily obtain housing, counseling and medical services.

Smoky bad air blankets Lake Tahoe because of threatening fire

On Tuesday, the air quality in Lake Tahoe ranked the worst in North America. And on Wednesday, the Air Quality Index showed the South Lake Tahoe was at a hazardous 347.

Caldor Fire threatens Lake Tahoe, shrouds area in toxic smoke

A large part of Cal Fire's offensive in battling the Caldor Fire in El Dorado County is focused on the eastern side, where Lake Tahoe is most threatened. 

Lake Tahoe officials urging visitors to stay away because of Caldor fire
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With only 9% containment, the Caldor fire is spreading towards Lake Tahoe and causing the worst air quality in North America on Tuesday morning. The threat from the fire has led officials to urge visitors to stay away from the popular destination.