In this episode of Fly Fishing Untangled Brian discusses how pressure systems affect the quality of fishing. Why was that perfect weather day so slow, and why was that two hour period before those thunderstorms so good? Unless you keep a fishing journal with tedious notes you might not fully realize what's going on in nature. Hopefully this video will give you some insight on what we witness day in and out on the water and dealing with fronts moving across the region. Enjoy!