Soon the JR will be passing through the locks in the Panama Canal.
See the JR on the map as it will start moving Sunday and watch it go through the Miraflores locks around 9 AM on Monday:
Or perhaps a more friendly site:
The Panama Canal is a busy place. The JR is just to the left of the word Panama as of about 13:00 EST on Sunday, June 5, 2011 and is one of the cyan colored markers.
Tides and sea levels in the two oceans have an effect on transit schedules:
Souces: www.mobilegeographics.com, Wikipedia