Yes, I know it does. Especially when it's the only wet spot in a dry landscape. Think about it, those vinyards are already saturated & you could still see the leaks. Imagine out where it's all bone dry, how much any wet spots show up. "Like a sore thumb"! They fly along dry hills & look for any wet spots that should not be there. Don't underestimate these guy's, they are desperatly trying to find you. They use everything they can, & FLIR technology makes it very easy.
Good luck bro, keep laughing
peace
doublejj