Question

How is barometer used for forecasting weather?

Answer 1

A barometer helps in weather forecasting in the following ways:

1. If the barometric level falls at a place without any increase in the moisture content of the air, it indicates that a dusty storm is approaching.
2. If the barometric level falls and there is an increase in the moisture content of the air, it indicates that rain is approaching.
3. If the barometric level falls gradually and there is an increase in the moisture content of the air, it indicates that the weather will slowly change to rainy weather.
4. If the barometric level falls abruptly and there is an increase in the moisture content of the air, it indicates that rain, storm, or cyclone is approaching.
5. If the barometric pressure rises gradually and there is a decrease in the moisture content of the air, it indicates that the weather is slowly changing to dry weather.
6. If the barometric pressure rises abruptly, it means the weather is dry but may change to an anti-cyclonic one.