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Annual maintenance of weather instruments at Ailaktalik station
Spotlight
The Silalirijiit Project was an innovative effort to engage community members and stakeholders to better monitor and understand the weather of Baffin Island’s Clyde River region. It combined state-of-the-art weather-monitoring technology with local Inuit knowledge.
Colorado snowstorm hangs heavy on ponderosa pine branches
Analysis - Snow Today
March started out dry in the western United States, but made significant gains in winter storms toward the end of the month, finishing tenth in snow-covered area over the 24-year-satellite record. Snow-covered area reached a maximum on January 17, 2024, spot on with the average over the data record.
Windnagel digging a snow pit
Spotlight
Ann Windnagel is a project manager at NSIDC. Her contributions span data set development, interactive applications, and research related to glaciers, sea ice, and snow. In this Q&A, she describes the many hats she has worn over the years, her biggest challenges, and her biggest rewards.
The graph above shows Arctic sea ice extent as of March 14, 2024, along with daily ice extent data for four previous years and the record low year. 2023 to 2024 is shown in blue, 2022 to 2023 in green, 2021 to 2022 in orange, 2020 to 2021 in brown, 2019 to 2020 in magenta, and 2011 to 2012 in dashed brown. The 1981 to 2010 median is in dark gray.
Analysis - Sea Ice Today

Arctic sea ice has likely reached its maximum extent for the year, at 15.01 million square kilometers (5.80 million square miles) on March 14. The 2024 maximum is the fourteenth lowest in the 46-year satellite record.

This NASA blue marble image shows Arctic sea ice extent on March 14, 2024, when sea ice reached its maximum extent for the year. Sea ice extent for March 14 averaged 15.01 million square kilometers (5.80 million square miles), the fourteenth lowest in the satellite record.
News Release
Arctic sea ice has likely reached its maximum extent for the year, at 15.01 million square kilometers (5.80 million square miles) on March 14, according to scientists at the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder.
This plot shows the departure from average air temperature in the Antarctic at the 925 hPa level, in degrees Celsius, for December 2023 through February 2024. Yellows and reds indicate above average temperatures; blues and purples indicate below average temperatures.
Analysis - Sea Ice Today

During February, Arctic sea ice extent increased along the lower 10 percent interdecile value, with the average monthly extent tied for fifteenth lowest in the satellite record.