Barometric Pressure

Barometric pressure is the weight of the atmosphere pressing down on the Earth's surface, measured in units like inches of mercury or millibars. For outdoor enthusiasts, changes in barometric pressure serve as a reliable weather forecasting tool - rapidly falling pressure typically indicates approaching storms or bad weather, while rising pressure suggests clearing conditions. Many outdoor watches, GPS devices, and weather instruments include barometric pressure readings to help hikers and campers predict weather changes and make informed decisions about their outdoor activities.