In between these low-pressure and high-pressure systems is a strong change in pressure over a distance—a pressure gradient.

Air tends to flow from high pressure to low pressure, but never in a straight line because of the rotation of the Earth. When a high pressure system and a low pressure system are farther apart ...

Today will be mostly sunny and breezy, with highs in the mid-50s—about 5 degrees below normal. Winds may be gusty along the I ...

Parts of Mississippi will likely see severe weather and tornadoes on Wednesday with more widespread severe storms expected ...