It's time for Sky Q, where the FOX 4 Weather Team answers your questions about science behind our weather in North Texas and around the world. Issac Rinartz asked "what is the cap and why do we always talk about it in North Texas?" If the air cools too much they are not able to break through the warm air of the cap. In North Texas, the cap is more important than in other parts of the country. That warm air actually helps fuel the cap, keeping it stronger than in other areas.