Good AQI is likely throughout most of the forecast area today. Yosemite Valley is seeing elevated smoke levels in the early morning most likely due to local campfires. Communities on the east side are seeing impacts from the Mosquito Fire to the north.

Current Air Quality

View current air quality conditions throughout Yosemite National Park and the region at https://fire.airnow.gov/

Good AQI is likely throughout the forecast area today with the exception of Yosemite Valley, which is likely to be USG. As fire activity increases, smoke impacts may increase, and some haze may be visible in the drainages overnight into the morning.

Current Air Quality

View current air quality conditions throughout Yosemite National Park and the region at https://fire.airnow.gov/

Air quality in the forecast area has greatly improved over the last day. Today, mostly Good AQI in the foothill communities is likely, with Moderate AQI for sites within the park. Smoke may be increasing as fuels dry out and the fires become more active later in the week.

Current Air Quality

View current air quality conditions throughout Yosemite National Park and the region at https://fire.airnow.gov/

Widespread smoke/haze can be expected over the region due to local fires and other fires across the state which will result in primarily Moderate AQI for all locations. Periods of increased smoke can be expected during the morning through midday, especially within the Tuolumne Rivers, Merced River, Chilnuana Creek, and other nearby drainages, as a result of the Red and Rodgers Fires smoke settling into the valleys during the overnight. Up to Unhealthy AQI can be expected for many park locations with up to Very Unhealthy AQI within the Yosemite Valley each day.

With an unsettled forecast this weekend there is potential for rain showers and gusty winds. There will be potential for quick changes in weather and air quality conditions with rain showers helping clear the air, and gusty winds pushing smoke in any direction.

Current Air Quality

View current air quality conditions throughout Yosemite National Park and the region at https://fire.airnow.gov/

Smoke from multiple California wildfires is impacting air quality this morning throughout the region with at least Moderate to Unhealthy for Sensitive Groups (USG) Air Quality Index (AQI) for all locations. Conditions will improve by early afternoon for most with Good to Moderate AQI for the late afternoon. Smoke will once again settle this evening and overnight with air quality impacts expected for Saturday morning.

The potential for cloud cover throughout the weekend may cause smoke to linger later into the daytime before improving. However, the potential for rain showers and outflow winds may create cleaner air for some while pushing smoke to others. Overall, continue to expect the largest air quality impacts during the morning hours with at least some improvement for the afternoons.

Current Air Quality

View current air quality conditions throughout Yosemite National Park and the region at https://fire.airnow.gov/

Smoke from the Red, Aspen and Rodgers Fires will impact air quality throughout the Merced River drainage from Yosemite Valley westward to Lake McClure as well as areas of southern Yosemite NP southwest towards the central valley. Largest smoke impacts will be in within the park with short-term AQI reaching Unhealthy for most locations, and even Very Unhealthy to Hazardous for Yosemite Village. Smoke from the Rodgers and Aspen Fires will settle into the Tuolumne River and nearby valleys with Moderate-USG AQI at times from Tuolumne Meadows to Hetch Hetchy Reservoir, Hodgdon Meadows, and to Groveland and nearby areas, primarily during the morning. Light smoke will also impact Lee Vining and Mammoth Lakes at times. Smoke from Yosemite NP fires and other fires in California will also contribute to smoke impacts along the foothills, including the Mariposa area. Current Air Quality View current air quality conditions throughout Yosemite National Park and the region at https://fire.airnow.gov/

 Smoke outlook: https://outlooks.airfire.org/outlook/17996aec 

Yosemite Public Information Map HERE. No closures

Good AQI is likely throughout most of the forecast area today. Yosemite Valley is seeing elevated smoke levels in the early morning most likely due to local campfires. Communities on the east side are seeing impacts from the Mosquito Fire to the north.

Current Air Quality

View current air quality conditions throughout Yosemite National Park and the region at https://fire.airnow.gov/

Good AQI is likely throughout the forecast area today with the exception of Yosemite Valley, which is likely to be USG. As fire activity increases, smoke impacts may increase, and some haze may be visible in the drainages overnight into the morning.

Current Air Quality

View current air quality conditions throughout Yosemite National Park and the region at https://fire.airnow.gov/