1. Closeup of a ruler

    Accumulated wisdom: How to measure snow

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

    • Weather

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  2. Where snow is born: Getting on top of winter storms

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

    • Weather

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  3. Modeling study captures deadly tornado outbreak

    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.

    • Weather

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  4. radar at DYNAMO field project

    Scientists probe Indian Ocean for clues to worldwide weather patterns

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

    • Weather

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  5. Ronald Reagan Washington National Airport under a heavy snow

    Blocking the way

    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.

    • Weather

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