The current wildfire season in California started early and is worse than usual. The other day I was in Santa Cruz, and the air quality was pretty bad - I could smell the wildfire even when swimming in the ocean; and I would have thought being so close to saltwater should make it a non-issue. I wondered whether I could have known this before; yeah, the NWS weather report is pretty good and it included "patchy smoke" warnings etc. - however, nothing beats an almost real-time satellite picture from NASA. You can clearly see the major wildfires and where the smoke is going. Unsurprisingly, a lot of the smoke from Big Sur ends up over Monterey Bay.
I grabbed this picture showing the conditions as of 6/29 (yesterday!) from the Aeronet Fresno subsets page. Image courtesy of MODIS Rapid Response Project at NASA/GSFC.