On the reality TV show “The Deadliest Catch,” you see the crew of the Northwestern enduring storms and other dangers while crab fishing in the Bering Sea in the middle of winter. You might be surprised to learn that the Northwestern and the hundreds of other boats that make up the North Pacific Fishing Fleet are not based in Alaska. Rather, they travel thousands of miles south each year to tie up in Seattle. So, why is the fleet based here? There certainly are more convenient ports closer to the fishing grounds. The reasons have to do with water, weather and people. Oh, and tradition plays a part. Read more on I Wonder Why ...?