Fall Kreml Weather??

[Green]

I think the trouble is that once visibility starts to change, it often continues to do so until it reaches either the maximum or minimum. It can then stick at this new value for some time. Remaining unchanged for several days is not unusual. I have run some quick tests and have been able to recreate the problem you have been having, more than once. If you have a range of 1 to 5, and enough turns, at some point you will have several consecutive days of visibility 1.

So, even though your visibility is now finally improving (after the Storm, anyway) at some point in the future it is likely to drop back down to the new minimum of 2 and potentially stay there for a number of days. If you feel that this is unrealistic, then the simplest thing to do is change the weather.dat file to have a range of 3 to 5. It is a compromise but possibly better that than abandoning the game.