Early disappearance of winter snowpack can have a major impact on spring and summer water supplies for people, ecosystems, and agriculture.
News & Features
Unlike past years, flooding from snowmelt to be less severe.
February 2021 was the 16th-warmest February on record, and it concluded the 8th-warmest Northern Hemisphere winter season on record.
La Niña weakened through February, and a transition to neutral is likely in the late spring.
NOAA climate experts are working on the latest update to the U.S. Climate Normals. Here’s a sneak peak at how what’s normal for winter will change.
February 2021 was the United States' coldest February in 30 years, but the winter overall was warmer than average. Much of the West remained in some level of drought.
Polar vortex expert Amy Butler and Arctic expert James Overland offer perspectives on the February cold snap in the southern U.S., the polar vortex, and how the Arctic might influence mid-latitude weather.
A warmer-than-average start to spring is favored for the central and eastern United States while a drier-than-average March is likely across the southern tier of the contiguous U.S.
La Niña has been going strong this winter, but the Northern Hemisphere doesn't appear to be paying attention. Our blogger discusses what may be going on.
Our planet’s history includes episodes of cold so extreme that glaciers reached sea level in equatorial regions.