1. 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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  2. UCAR Magazine

    NCAR colloquium looks at African weather and climate

    A group of scholars and students from nine countries came together in Boulder this summer for two weeks of study dedicated to the world’s second largest and second most populous continent.

    • Climate,
    • Weather

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  3. Flights can inadvertently generate rain and snow near airports

    The inadvertent cloud-seeding effect occurs up to about 6 percent of the time at major airports.

    • Weather

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