Sunrise the other day:

Like most of North America, San Francisco has been a lot warmer than usual this week. Tonight the fog machine kicked in and started cooling things down. It comes over the hills from the ocean side, eventually closing in the downtown area:

A closeup of the fog rolling over Alamo Square and in to Hayes Valley:

And passing around San Francisco City Hall:

The three “fog shots” were taken on the opposite side of the building from my apartment.