It's a ham thing. Here, just read about it at the event's web site.
If you're not familiar with the concept of hams hosting special event stations, think of it as the amateur radio equivalent of a running club putting on a 5k to commemorate an event, occasion, anniversary, etc. Here's the Wikipedia page on the subject, it's pretty short.
Remains of the Bay Bridge. This is where the eastern eye wall – i.e., the bad part – made its final landfall. No particular reason, just felt like posting it.