Here is a picture of a Kitty Food Feeding Station I made. They are easy and effective, in keeping the food dry. I have used blue plastic tubs before, but found, the kitties REALLY like the clear plastic ones, as they can then "monitor" what is going on around them, while they have their meal!
They hold up well in snow and summer too. I made some last year, and they are still looking great--and the kitties really use them a lot!
You really only need the plastic tub and some duct tape. I also used some nylon twine to tie the lid on for the "roof", and if you look, you can see where I made holes on the side and tied the twine into the holes, to make sure the roof stays stable!
**Edited to add: You can put a brick inside, to weigh it down, if you place it in a windy area.
**Edited to add: You can put a brick inside, to weigh it down, if you place it in a windy area.