Tropical storms and hurricanes that move slowly near the coast or inland are among the most feared by forecasters. Sometimes these tropical cyclones may not have powerful wind speeds, but the threats posed can be amplified due to their sluggish pace. Here's a look at what a slow speed means for rainfall potential and some other typical threats from a storm that's in no hurry to exit a region. A slow-moving storm brings relentless rainfall In focus: The slower a storm moves, the more incredible the rainfall amounts can become. A storm chugging along at just 5 mph has a...