Understanding atmospheric pressure is vital, newsroom meteorologist Justin Ballard said, because those giant H’s and L’s representing high and low air pressure systems on a weather map are ...

High pressure often represents stable air, while low pressure can signify instability. On a cold, sunny day there will be a significantly higher atmospheric pressure than when a big storm is ...

Some people really can feel atmospheric pressure changes within their bodies. These symptoms of high- and low-barometric pressure can show up in your head, your blood pressure and blood sugar ...