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Observing & Predicting
- March 22, 2017
Despite being at opposite points of the annual cycle, the Arctic and Antarctic had something in common in March 2017: record-low sea ice extents.
- Department:March 22, 2017
Hot and dry conditions across the Southern Plains proved perfect for the spread of large wildfires across the prairie in March.
- Department:March 20, 2017
Based on historical climate data from thousands of stations across the United States, these maps show the warmest and coldest daytime high temperatures ever recorded at a given location on March 20—the astronomical first day of spring.
- March 16, 2017
Near-record warmth across the U.S. this past winter raised the odds for a warmer than average spring. Even so, several places received plenty of snow, which raised the risk of flooding in the Northern Rockies, the Northern Plains, and New England.
- February 17, 2017
The Arctic sea ice's typical winter expansion has been sluggish in 2016-17. Following a record-low January extent, this year's winter maximum may wind up being the smallest on record.
- February 7, 2017
Springtime melting and retreating sea ice allowed more sunlight to reach the upper layers of the ocean, stimulating widespread blooms of algae and other tiny marine plants which form the base of the marine food chain: a sign of the rapid changes occurring in a warming Arctic.