The 18:00 UTC (11:00 PDT) HRRR smoke model shows a smoky 48 hours for the Bay Area, although perhaps slight improvement may be coming. The bulk of the smoke looks like it's coming from the fires in Tehama and Glenn counties and other places to our north. rapidrefresh.noaa.gov/hrrr/H…

In general, these HRRR smoke images can be found at: rapidrefresh.noaa.gov/hrrr/H… for the southwest US or rapidrefresh.noaa.gov/hrrr/H… for the whole country. The 48 hour long runs are done only every 6 hours; other runs just extend 24 hours.