Could be really good!
You really need to work on the power/spending ratio. And the music does not fit at all. it sounds like it should be on the transport tycoon soundtrack or something, not in a post-apocalyptic wargame, or whatever the story is, I didn't pay attention.
But I do believe you could make this game really great just by adjusting some parameters in the script and maybe adding a little more variety in animation.
And I like that you add a factor of randomness through the weather, but I don't like HOW you do it. It just doesn't work so well.
I'm looking forward to seeing a version 2 of the game.