Turns out there's a Category 4/5 hurricane in our general vicinity. It looks like Hurricane Jimena will pass by us without too much ado, but we're already feeling some of the side effects. The usual 2-4 foot waves out back are expected to possibly reach 12 feet tonight. Just in the last couple of hours they have grown to about 6 feet. It's going to be an especially noisy night.
It also turns out that Google Earth can track hurricanes - I had no idea.

The star is where we're staying in Puerto Vallarta. The two middle red dots on Hurricane Jimena's plot represent her approximate locations at 2 AM and 2 PM Pacific today - Monday.
Jimena's course also happens to intersect with our flight path tomorrow night. I hope we go around it.