Weather for Kids

The United States operates two meteorological satellites in geostationary orbit, one over the East Coast and one over the West Coast with overlapping coverage of the country. Satellites provide weather forecasters with many different views of the clouds. During daylight a visible satellite picture gives forecasters a similar view as if standing in outer space looking down at the earth. At night, however, satellites detect cloud temperatures allowing meteorologists to track storm systems around the clock. Other satellite views give forecasters a measurement of water vapor, fog and low clouds, stability, and wind speeds. Satellites can also aid in estimating rainfall and flooding during a storm event.

Doppler Radar is another tool used by meteorologists to predict the weather and provide life-saving warnings. The radar gets its name from the Doppler Effect, which is based on the effect you observe when a train blows its whistle, and the change in pitch that occurs as the train passes by you. Doppler Radar detects precipitation intensity, wind direction and speed, and provides estimates of hail size and rainfall amounts.

Doppler Radar gives forecasters the capability of providing early detection of severe thunderstorms that may bring strong damaging winds, large hail, heavy rain, and possibly tornadoes. Combined with satellites, radar gives forecasters the ultimate tools to provide accurate forecasts and advanced severe weather warnings.