Placer County, California
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Weather Alerts: Placer County, California
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Air Quality Alert
Greater Lake Tahoe Area-Mono County-
502 PM PDT Wed Jul 19 2017


Stage 1 Health Advisory
Affected Communities: Mono and Alpine Counties
Smoke Source: Detwiler Fire

Based on air pollution levels at the Ranchos PM2.5 monitor in
Gardnerville, NV (operated by Nevada Division of Environmental
Protection) from midnight to 9:00 am PDT on July 19, 2017 a
Stage 1 Air Pollution Health Advisory has been issued for Alpine
and Mono Counties. Smoke forecasts predict that conditions will
worsen starting in the early afternoon.

Due to elevated particulate pollution levels, children, the elderly,
people with heart or lung problems, or people with current illnesses
such as the flu, are advised to stay indoors and avoid strenuous
outdoor activities in the impacted areas.

Smoke conditions may change quickly. If you have any questions please
visit or call the Great Basin Air Pollution
Control District office in Bishop at 760-872-8211.


Dense Smoke Advisory
Greater Lake Tahoe Area-Mono County-
Mineral and Southern Lyon Counties-Greater Reno-Carson City-
Minden Area-Western Nevada Basin and Range including Pyramid Lake-
Including the cities of South Lake Tahoe, Truckee, Bridgeport,
Mammoth Lakes, Yerington, Smith Valley, Stateline,
Incline Village, Sparks, Gardnerville, Virginia City, Fernley,
and Silver Springs
300 AM PDT Thu Jul 20 2017


* A large dense plume of smoke from the Detwiler Fire in Mariposa
County is impacting areas throughout the Sierra and western

* Visibility: Ranging from 2 to 5 miles. Visibility of one mile
or less is possible along the eastern Slopes of the Sierra
and around the Tahoe Basin, Alpine County and Douglas

* Impacts: Unhealthy air quality at least through tomorrow
afternoon. Outdoor activities are strongly discouraged.


Persons with respiratory illnesses should remain indoors to avoid
inhaling smoke particles. Keep windows and doors closed to avoid
letting the smoke inside buildings. For the latest Air Quality
Index please visit:



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