Right, you got the idea.
Weather front passing from west to east slowly, you would know where its going and plan accordingly, like War 2 in Europe.
Not a large front that would take up the whole theater but something like 20 percent. And would pass completely over in say 90 mins or so.
Perhaps with embedded thick and thin patches (wisps of fog) to make you wonder if that is a tank out there at 800 meters or a log.
Or low clouds to force NOE runs to target with very limited vis. Easier to hide Goons.
