A discussion of the interactions between the four spheres of Earth and how they affect weather and climate. The slideshow is divided into two parts. The first deals with interactions between the atmosphere and the hydrosphere and the...

Images and diagrams of the Sun, solar phenomena such as sunspots and flares, space weather, Earth's magnetosphere and upper atmosphere, the aurora, and more.

Taken by Voyager 1 as it passed Jupiter in 1979, this image shows the Great Red Spot, which is a hurricane-like storm that has lasted over 300 years, and is more than three times the size of planet Earth.

Check out real-time satellite photos of the earth to study weather patterns.

A very detailed description of air masses, how they move and interact, and what weather takes place when this happens.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations and the instruments that measure them. Here you can find a photograph of the first Doppler weather radar built by the National...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations and the instruments that measure them. Here you can find a photograph of the second Doppler weather radar built by the National...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations and the instruments that measure them. Here you can find a photograph of the first doppler weather radar built by the National...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations and the instruments that measure them. Here you can find a photograph of the first Doppler weather radar built by the National...

Scientists study ice sheets because they influence weather and climate, playing a role in atmospheric and ocean circulation. Ice sheets can also have huge impacts on global sea levels because they store so much water. Explore this...

The National Weather Service presents this site on synoptic meteorology, large-scale weather systems. Learn about the structure and behavior of the atmosphere, including clouds, precipitation, winds and more. Also includes learning...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations and the instruments that measure them. Here you can find a photograph of a solar-powered Surface Automated Measurement (SAM) site....

The National Weather Service presents this site which explains the operations of the NWS. Learn about the Weather Forcast Offices, the River Forcast Office, NOAA Weather Radio, and more...including Career opportunities with the NWS.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. This photograph is of several strokes of lightning striking during a nighttime thunderstorm.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Utilizing time-lapse photography, this photograph captures multiple cloud-to-ground lightning strokes during a nighttime...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Using time-lapse photography, this image captures numerous cloud-to-ground lightning strokes during a nighttime thunderstorm in...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Originally appearing in National Geographic Magazine, this photograph captures a lightning strike above Norman, Oklahoma.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. This photograph captures several lightning strikes during an early evening thunderstorm.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. Utilizing time-lapse photography, this image captures numerous cloud-to-ground lightning strikes during a nighttime thunderstorm...

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. This photograph of a hailstone is measured on a ruler to indicate a diameter of 6 inches (approximately the size of a grapefruit).

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. This photograph of a hailstone is measured on a ruler to indicate a diameter of 4 inches (approximately the size of a baseball).

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. This photograph was taken in 1966 of a tornado in Enid, Oklahoma in a mature state of development.

The National Oceanic and Atmospheric Administration provides a photo library of severe weather formations. This photograph is taken in 1966 of a tornado in Enid, Oklahoma in a mature state of development.