Skip to NavigationSkip to Content
Image that reads Storm-E Weather Simulation that links to the Storm-E home page.
Button that takes you to Students.Button that takes you to Teachers.Button that takes you to Weather Extra.Button that takes you to Links.Button that takes you to Images.
Image that reads Students.
Air Pressure  

Humidity Team

Home | Fast Facts | Picture Help | Maps and Graphs

Fast Facts for the Humidity Team

  1. Relative humidity is the amount of water vapor actually in the air divided by the amount of water vapor for the air to be saturated. This is assuming the temperature and pressure do not change. Relative humidity is stated as a percentage.
  2. The closer relative humidity gets to 100 percent, the more likely it is that clouds form.
  3. Dew point is the temperature to which air must be cooled to become saturated with water vapor.
  4. The closer air temperature gets to the dew point, the more likely it is that clouds form at altitudes where the temperature and dew point are close.
  5. Fronts are narrow zones between two air masses. The air masses have different temperatures, humidity, or both. Clouds and precipitation often form along a front.

Privacy Statement and Copyright © 1999-2004 by Wheeling Jesuit University/The NASA-sponsored Classroom of the Future program. All rights reserved.
Some images copyright © 2004