Does the kangaroo pocket keep things dry in the rain and snow?

It depends on the zipper quality and seam sealing. The kangaroo pocket is a large opening on the front of the jacket, and its zippers are a potential water entry point. Look for anoraks with water-resistant zippers (like YKK Aquaguard) and storm flaps over the pocket zippers. In heavy rain or wet snow, even well-sealed pockets may allow some moisture ingress over time. Store electronics in internal pockets or a dry bag if conditions are extreme.