User:Tonybui56

How Does Rain Form

Rain is the of a cooling air mass. As the temperature of the air mass decreases, it gets smaller. At some temperature, the air mass humidity is 100% and it is saturated with water vapor. If the air mass cools even more,the water vapor will form water droplets. Tiny form cloud or fog. Larger droplets fall as rain. Cooling an air mass is like wringing out a wet sponge.