AtmosNews: Uncertainty and seasonal hurricane outlooks

Nature's roadblock to hurricane prediction
The quiet Atlantic hurricane season of 2013 came as a surprise to many, as seasonal forecasts had consistently predicted an unusually large crop of named storms. A new study by scientists at NCAR and North-West University (South Africa) finds that internal variability—processes that unfold without being dictated by larger-scale features—can make one season twice as active as another, even when El Niño and other large-scale hurricane-shaping elements are unchanged. The results suggest that seasonal hurricane forecasts could be improved by conveying the amount of unavoidable uncertainty in the outlook. more>

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Announcement Timing: 
July 24, 2014 to August 1, 2014