NWS Bay Area on Twitter: "As the winds weaken aloft, gravity will take over as the primary vertical transport of the smoke. Suspended smoke will descend closer to the surface and could lead to darker skies and worsening air quality today. This is beyond the scope of our models so we rely on your reports!"

Official Twitter account for the National Weather Service San Francisco Bay Area. Details: http://weather.gov/twitter

San Francisco, CA

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