In a record going back to 1850, Earth hasn't had a year colder than the 20th-century average since 1976—almost half a century.
The latest forecast says a major disruption of the polar vortex is on its way, but the stratosphere has been acting up for a while. Our bloggers explain what it might mean for U.S. weather.
Will December's mild weather continue in January, or will winter finally rear its ugly (and cold) head?
Before 2023 officially wraps up we want to highlight some of the climate related stories, maps, and graphs that we brought you over the past year.
Most models predict that the polar vortex will remain slightly weaker than average through December. Others say a full-on breakdown remains in the cards.
From record-high summer heat to the greening of the Arctic, this collection of images highlights several key "vital signs" of the Arctic.
If this blog teaches you one thing, we want it to be this: "polar vortex" is not a synonym for "cold snap."
Was the late November Great Lakes snowstorm a harbinger for December?
It's not perfect, but ENSO is still the best tool we have for predicting average winter precipitation over the U.S.
Nearly 100 NOAA scientists and staff contributed to the Fifth National Climate Assessment. Among this group were 35 authors, 13 chapter leaders, 20 members of NOAA’s technical support team, technical contributors and reviewers.