National Weather Service

Watches, Warnings & Advisories
NWS Homepage

One product issued by NWS for: Yosemite Valley CA
Share |

Air Quality Alert

1257 PM PDT Sat Aug 18 2018

The Tuolumne County Air Pollution Control District has issued an Air
Quality Alert for Tuolumne County due to smoke impacts from area
fires. Smoke levels continue to reach well into the hazardous range.

The San Joaquin Air Pollution Control District continues the
Air Quality Alert for the mountains and foothills of Madera,
Fresno, and Tulare Counties due to ongoing smoke impacts.

This Air Quality Alert is in effect until all active fires are
extinguished or weather conditions change.

Exposure to particle pollution can cause serious health problems,
aggravate lung disease, cause asthma attacks and acute
bronchitis, and increase risk of respiratory infections.

Residents are advised to use caution through this weekend.
People with heart or lung diseases should follow their doctor`s
advice for dealing with episodes of unhealthy air quality.

Additionally, older adults and children should avoid prolonged
exposure, strenuous activities or heavy exertion, as conditions




U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE