RELATED: Does wearing a mask when it's smoky outside work?
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This is not uncommon, as the jet stream continuously moves west to east.
RELATED: Unhealthy air from Camp Fire continues to blanket Bay Area
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In August, smoke from fires in California was also pushed far east. Areas affected eastward would likely only see a light haze with minimal health impacts.
See more stories, photos and videos on the Camp Fire in Butte County here.
MAP: Current Bay Area Air Quality Conditions