1. Military vehicles ford floodwaters in Minnesota

    UCAR Congressional Briefing: Weather and climate risks to national security

    A panel of experts at a congressional briefing warned that increasingly powerful hurricanes, sea level rise, and other changing aspects of Earth's climate system are posing new challenges to the U.S. military.

    • Climate,
    • Government Relations,
    • Weather

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  2. Map of North America showing areas where climate change has altered wintertime precipitation.

    Climate change has altered winter precipitation across the Northern Hemisphere

    A team of scientists has successfully teased out the influence of human-caused climate change on wintertime precipitation over much of the last century, showing that the warming climate has altered wintertime rainfall and snowfall across the Northern Hemisphere.

    • Climate,
    • Weather

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  3. A severe storm forms on the Great Plains in 2010

    Facial recognition technique could improve hail forecasts

    The same artificial intelligence technique typically used in facial recognition systems could help improve prediction of hailstorms and their severity.

    • Weather

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  4. Street with houses destroyed or damaged by Hurricane Ike

    Communicating coastal storm risks through a sense of place

    NCAR is leading a new project studying how maps and other visualizations can help communicate forecasts and help residents better understand the risks to their communities.

    • Water,
    • Weather

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  5. 20-day forecast simulation with starting conditions that differed on the order of a thousandth of a degree of the control (Forecast vs Fake Reality) yielded drastically different results past six days.

    Confronting the unpredictable

    Even with the ideal computer model and nearly perfect observations, new research confirms what meteorologists have long thought: there's a limit to how far in advance we can forecast the weather.

    • Weather

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