Understanding Barometric Pressure and Its Effects Barometric Pressure, also known as atmospheric pressure, influences weather and health. Rising Barometer: Clear, calm weather. Falling Barometer: Cloudier, stormier conditions. Survival Tip: Use a barometer or a device like a Kestrel to predict weather. Rapidly Falling Pressure: Approaching storm or worsening weather. Slowly Falling Pressure: Prolonged poor weather. Rising Pressure: Improving weather conditions. Health Impact: Rapid pressure chan