High temps will be in the low-mid 80s. I’ll have more details on the weather between tomorrow and Sunday in tomorrow’s weather blog. Meteorologist: Jeremy Wheeler ...

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 ...

Areas of high pressure are characterized by sinking air, which tends to warm and lead to sunny, pleasant weather. In low pressure areas, the air rises, cools and condenses into clouds, leading to ...

A map illustrates lines of surface pressure, called isobars, with areas of high and low pressure marked for March 14, 2025. Winds are strongest when isobars are packed closely together. [Image ...

Simply put, on a 500-millibar (mb) map, one of the key ways of observing the upper atmosphere, when there is a ridge, it appears as a hill-like shape and indicates high pressure, which generally ...