I'm sure you've heard meteorologists refer to high and low pressure. As many of you know, the weather you are experiencing is heavily influenced by upper-level patterns, particularly high and low air ...

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 meaningless ...

ST. LOUIS — Rain and intense winds aren't the only severe weather that will affect residents' lives around the St. Louis region on Tuesday. Very low air pressure is also expected to hit communities, ...

Skies continue to clear early tomorrow, but we'll have some haze from incoming wildfire smoke that also works to lower our air quality. As a result, we're under an Air Quality Alert until noon on ...

The St. Louis region could be hit with the lowest air pressure reading since the '70s, meteorologists said. It could cause increased migraines and joint pain. Increased Dangers for Putin — Kremlin on ...