I was going to go flying today but was put off by the following scene (and NO I don't mean the runway was under water!
) ....
There are 2,500ft mountains to the east of us and a 25 mph easterly wind was blowing. The lenticulars were forming at just over 2,500ft, I didn't go and have a closer look. It looked like wave was carrying on over the Pacific for quite a number of tens of miles.