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 ...

Blocking highs, like the one setting up this week, are often responsible for our highest impact and longest duration weather events. They block energy from easily leaving our state. Blocking highs can ...

CLEVELAND — "High pressure means sun and fun, Low pressure means doom and gloom." This little quip is how I explain the impacts of high and low pressure in the atmosphere, but not all pressure systems ...

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, ...

What Makes the Wind Blow explains the fundamental forces behind wind and air movement using real-world and laboratory demonstrations. The film shows that wind is caused by differences in air pressure, ...