But what exactly is pressure? What is a pressure system? And why should anyone care? The difference between high and low pressure is sometimes the difference between sunshine and downpours.

Today will be mostly sunny and breezy with highs in the mid-50s, about five degrees below normal. Winds may be gusty along the I-84 corridor. Mountain areas could see a few showers, but the ...

The research group previously developed a method for objectively identifying mobile high- and low-pressure systems from global atmospheric data to elucidate the mechanism underlying the ...