The other night we had some terrific fog — the sort of blanket that torments the outside lands but rarely touches the Dogpatch. Did you hear the foghorns? Did they remind you that we live within shouting distance of a working seaport and one of the largest estuaries in the world?

In case you somehow missed them, someone took the time to record them:
Foghorns on the bay at Potrero Hill Recreation Center by radiothom