For those who noticed, the JFK area feed was down for several days; sorry, I couldn't get to it until today to get it back up and running.
This feed uses a Pi and a USB hub. Restarting the Pi several times did not seem to solve the problem. It was only after I restarted both the Pi and the USB hub that it came back up.
I thought I'd mention that in case anyone else runs in to the same situation.