What does a barometer measure?

Answer by  Valentine62 (2131)

It is an instrument used to measure atmospheric pressure. The change in air pressure can predict an oncoming storm such as when the air pressure drops. Air pressure, combined with the wind, makes it possible to predict weather conditions that are in the near future. Barometers are set for sea level, and must be reset according to geographical locations.

Answer by  gmun (603)

A barometer is used in weather forecasting to measure pressure. The measurement is in millibars and helps forecasters understand what is going on in the atmosphere so they can accurately predict rain, snow etc.

Answer by  Thorfax (42)

A barometer is a device used to measure atmospheric pressure. It can be used in the water, or other places to read pressure to determine if it is a safe pressure.