Pressure altitude is used to determine your aircraft’s performance in non-standard conditions, which are any time the barometric pressure is anything other than 29.92 Hg at sea level.

For over two centuries, meteorologists were puzzled by the observation that atmospheric pressure in the tropics peaks at 10 a.m. and 10 p.m. nearly every day.

Not only is this a record for Heathrow, beating 1047.3 mb from February 7, 1964, but it’s also the highest barometric pressure recorded in London in more than 300 years of recordkeeping, Burt ...

Systems of atmospheric pressure can shape Texas weather as deadly hurricanes or as scorching heat domes, depending on whether it's low or high.

Fluctuations in atmospheric pressure can heavily influence how much natural gas leaks from wells below the ground surface at oil and gas sites, according to new research. However, current ...