It takes more than a ruler in a snowbank to get accurate snow depth measurements.

PLOWS campaign opens a window on how snow develops in clouds.

NCAR scientists have performed one of the most detailed simulations ever of a massive tornado outbreak. They simulated two waves of tornadic storms that occurred on April 27,2011 in Alabama, the deadliest U.S. tornado day since 1925.

The DYNAMO field project will help improve long-range weather forecasts and seasonal outlooks by focusing on the Madden-Julian Oscillation.

Every so often, a dome of upper-level high pressure sits in place for a few days, sometimes as long as several weeks. A major block can produce seemingly endless stretches of blazing heat or bitter cold. By the time it dissipates, it may leave behind a whole stack of broken weather records and an array of disastrous consequences.