I was just on the NOAA buoy site...looks like the 44013 was tired of being stationary and decided to take a little cruise. :)

Buoy at station 44013 went adrift on 12/9/2011 and its last report from its moored position was at 0500Z. This buoy was recovered on 12/9/11. This buoy will be restored to service when it can be worked into the schedule. When the service date is known, it will be posted on the weekly maintenance report.

018 is down too.

013 should get fixed pretty quickly being the Boston entrance buoy, who knows when they'll fix 018 since it was a transplant.

back up and running
NDBC - Station 44013 (http://www.ndbc.noaa.gov/station_page.php?station=44013)