2319z has Alucia approaching the Mirafloras locks, the first of the three sets on her passage through the canal.
Edit: Hm, fiddling with the map I found more information.
The Whitney Bay is in the lead. And there are four ships still coming South to get through if they truly run only one way at a time. One of the four is just about clearing the locks at this moment. It looks like Alucia and Whitney Bay are going to get into the locks going North before the pipeline is cleared.
Go to the pancanal.com site and you can find live video of the passage if you get there soon enough.