They pull a lot in expectation and the result of rain and also due to power demands. That's why they usually pull harder in the early morning and late evening when most people are using electricity. In this case, from the post, it was due to the recent rains and the leveling of pools all along the system in response to the conditions weather-wise. Learning what to do when they are pulling at different strengths is key because the fish set up and even move in depth in the water level during these times to "fish" themselves. So, we're fishing for fishing fish, sort of The TVA Navigation Charts page on the internet is crucial for fishing Guntersville. You can also see the trends from year to year and see it's usually a low pool this time of year each year, too.