Observed air quality and the smoke outlook for Union City, CA: when smoke arrives, how bad it gets, when it clears — with the fires nearby and a live local map. Forecasts from NOAA, NASA, and ECCC models, checked hourly against real monitors and satellites.
Nearby: Fremont, CA smoke forecast (3.7 mi SE) · Newark, CA smoke forecast (4.7 mi S) · Fairview, CA smoke forecast (5.9 mi N) · Hayward, CA smoke forecast (6.1 mi NW) · San Jose, CA smoke forecast (19 mi S) · San Francisco, CA smoke forecast (25 mi NW)