Hello!

I have a rear door that sits flush with a small slab of concrete. There is a storm door also attached, however for some reason whenever I open the door, dirt and leaves get pulled into my kitchen. I have a sweep on the storm door that is lowered as far as possible until it drags too much to shut. The house is 100 years old so obviously there is some settling and nothing fits quite perfectly. Any suggestions of what I can do to prevent leaves and dirt from blowing between the doors and coming into my home? Thanks!