Today I traded sunny California for foggy. Five minutes drive from here it was bright and sunny and warm. My father and I figured we'd pick a nice spot and it would brighten up any minute. By the time we were done, it was just as cold and foggy as when we'd arrive.
Again my biggest challenge was getting those "barely there" tones in the hills. I mixed up some big puddles and started, laid in big shapes, stepped back and then scrapped it all and started again. Three times!
The other side effect of using acrylic in the direct path of a chilly foggy breeze coming of the lagoon, was that my paint wouldn't really dry. It just gut a nasty sort of gummy. That's why I had to keep scraping.