Weather
![Smoke throughout Northern California can be seen from several ongoing fires, including the historic Park Fire near Chico, the Crozier Fire, which broke out Tuesday night near Placerville, and the Canyon Fire in the Sierra Nevada foothills. Smoke throughout Northern California can be seen from several ongoing fires, including the historic Park Fire near Chico, the Crozier Fire, which broke out Tuesday night near Placerville, and the Canyon Fire in the Sierra Nevada foothills.](https://www.mercurynews.com/wp-content/uploads/2024/08/SJM-L-THUWEATHER-1215-1.jpg?w=137)
Air Quality advisory effective through Sunday
Smoke throughout Northern California can be seen from several ongoing fires, including the historic Park...
![The sweltering month "is, unfortunately, very consistent with expectations that we’re going to see hotter and hotter summers," one expert said. The sweltering month "is, unfortunately, very consistent with expectations that we’re going to see hotter and hotter summers," one expert said.](https://www.mercurynews.com/wp-content/uploads/2024/07/SJM-L-HEATCOST-0706-1.jpg?w=132)
July was California’s hottest month on record
The sweltering month "is, unfortunately, very consistent with expectations that we’re going to see hotter...
![Travelers to Lake Tahoe and the Central Valley travelers should be cautious of poor air quality this weekend. Travelers to Lake Tahoe and the Central Valley travelers should be cautious of poor air quality this weekend.](https://www.mercurynews.com/wp-content/uploads/2023/09/SJM-L-BADAIR-0920-7.jpg?w=132)
Air quality advisory extended through Saturday
Travelers to Lake Tahoe and the Central Valley travelers should be cautious of poor air...
![Killing 'energy vampires' and adjusting your thermostat can help reduce energy use and save money on your power bill Killing 'energy vampires' and adjusting your thermostat can help reduce energy use and save money on your power bill](https://www.mercurynews.com/wp-content/uploads/2024/08/SUT-L-smart-thermostat-0808-01.jpg?w=140)
Five tips to help keep your utility bill somewhat manageable this summer
Killing 'energy vampires' and adjusting your thermostat can help reduce energy use and save money...
![Moderate air quality forecasts extend into Friday for the Santa Clara Valley, and through Saturday for the Bay Area Coast and Central Bay. Moderate air quality forecasts extend into Friday for the Santa Clara Valley, and through Saturday for the Bay Area Coast and Central Bay.](https://www.mercurynews.com/wp-content/uploads/2023/08/SJM-L-BADAIR-0831-1.jpg?w=140)
Air quality advisory issued as wildfire smoke blankets Bay Area
Moderate air quality forecasts extend into Friday for the Santa Clara Valley, and through Saturday...
![Firefighters at work on a wildfire Firefighters at work on a wildfire](https://www.mercurynews.com/wp-content/uploads/2024/08/WORLD-NEWS-ENV-WILDFIRES-CLIMATE-GET.jpg?w=132)
Wildfires create smoke clouds that hold heat and warm the earth, researchers say
These smoke clouds contain particles of black carbon soot that absorb twice as much sunlight
![According to Cal Fire, there are 507 engines and 6,627 total personnel in the area. Twenty-five engines came from Texas, 10 from Utah and one from Nevada, and an engineer from Arizona also joined the team fighting the blaze. According to Cal Fire, there are 507 engines and 6,627 total personnel in the area. Twenty-five engines came from Texas, 10 from Utah and one from Nevada, and an engineer from Arizona also joined the team fighting the blaze.](https://www.mercurynews.com/wp-content/uploads/2024/08/FAIRGROUND-01.jpg?w=123)
From far and wide, crews across the US band together fighting Park Fire
According to Cal Fire, there are 507 engines and 6,627 total personnel in the area....
![The most detailed map of emissions shows stark disparities in exposure to soot and smog in Bay Area neighborhoods. The most detailed map of emissions shows stark disparities in exposure to soot and smog in Bay Area neighborhoods.](https://www.mercurynews.com/wp-content/uploads/2017/05/baypol3.jpg?w=140)
Some Bay Area neighborhoods breathe more hazardous air. Here’s where they are.
The most detailed map of emissions shows stark disparities in exposure to soot and smog...
![CalFire reported growth of about 9,000 acres in less than 30 hours. CalFire reported growth of about 9,000 acres in less than 30 hours.](https://www.mercurynews.com/wp-content/uploads/2024/08/parkfire0807-listing.png?w=140)
Map: Park Fire’s active burning prompts more evacuations
CalFire reported growth of about 9,000 acres in less than 30 hours.
![A slight relief from the heat is expected during the weekend. A slight relief from the heat is expected during the weekend.](https://www.mercurynews.com/wp-content/uploads/2024/07/SJM-L-HEATWAVE-0702-06.jpg?w=132)
More heat for the Bay Area, this time with more than a hint of mugginess mixed with it
A slight relief from the heat is expected during the weekend.