Understanding Weather. Carin Miranda Smyrna Middle School Winter 2013. Water in the Air. Evaporation is when water changes from a liquid to a gas. When air reaches its dew point relative humidity is at 100% . Clouds. Nimbostratus clouds will bring light to heavy continuous rainy weather.
Smyrna Middle School
â€¢Sleet-Starts as rain then freezes in the air.