Early disappearance of winter snowpack can have a major impact on spring and summer water supplies for people, ecosystems, and agriculture.
The large, warm pool of ocean water in the Indian and west Pacific Oceans has been growing warmer and expanding in size since 1900, impacting the Madden Julian Oscillation and regional rainfall.
A new NOAA-funded index scores U.S. states' long-term vulnerability to drought, based on a combination of sensitivity, exposure, and their ability to adapt.
Climate models project dangerous combinations of heat and humidity by the end of the 21st century. New research says these extremes are already happening.
The most comprehensive database ever assembled of paleoclimate proxies that tell scientists about temperatures since the last ice age ended around 12,000 years ago has been released to the public.
Between the weekly forecast and a seasonal outlook—and often less accurate than both—sit “sub-seasonal” weather predictions. In this profile, atmospheric scientist Libby Barnes talks about her work leading a NOAA task force whose members are trying to overcome the special challenges of forecasting over the 2-week to 2-month horizon.