This afternoon we got the best fog we've had in ages. It wasn't very thick here— trees a quarter mile away were vague shapes— but I went to Safeway and visibility at that lower elevation was no more than 300 feet. Colors were muted, and the headlights of oncoming cars would suddenly appear from the gray, each with its own little halo. The fog on my street was a bit thicker by the time I got back, and I'd have gone for a walk if I hadn't had to make dinner. An hour later, slow rain had arrived and begun washing the fog from the air. Tomorrow, alas, is expected to be mostly clear. I hope we get at least a few more days of such splendid fog before winter ends.