Louis J. Sheehan, Esquire Humidity is a measure of the amount of water vapor dissolved in the
air, not including any liquid water or ice falling through the air. For
clouds to form, and rain
to start, the air doesn't have to reach 100% relative humidity at the
Earth's surface, but only where the clouds and rain drops form. This
normally occurs when the air rises and cools. Typically, rain falls
into air with less than saturated humidity. Some water from the rain
may evaporate into the |