Air pressure fluctuations occur primarily because of changes in temperature, elevation and humidity. Regarding temperature, warm air is less dense than cool air. As air is warmed, its molecules move ...

LYNCHBURG, Va. (WSET) — The Science Behind Severe Weather is here and Monday is Day One of experiments. Here is one the whole family can do at home using household objects. This experiment ...

We’re hearing meteorologists talk about Texas being trapped under a “heat dome” again, but what is it exactly and why is it happening? A heat dome is basically a system of high pressure sitting over ...

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, ...