Lockloss 11/19 21:51UTC (Lockloss page has been offline for 85 mins as of when I'm writing this so I cannot link the lockloss page for this lockloss)
Not sure of cause. An earthquake was rolling through (crosshairs at lockloss time) but we had gotten through the biggest part fine. Microseism and wind are still high so it's possible that the lockloss was caused by their combination.
1384379987 Looks like some glitches in DARM / Length in the 500ms before, as seen in 73818.