A fresh blast of Arctic air is poised to spill across a wide swath of the United States, and the latest polar vortex map makes clear which regions are most exposed. Forecast models show a sharp southward dip in the jet stream that will funnel frigid air from Canada into the central and eastern states,

In a more immediate forecast, temperature overnight tonight should crash to about the 5-15 range NNJ to SNJ by Saturday morning. Highs should then range from about 10-20 NNJ to SNJ on Saturday afternoon with dry mostly sunny conditions. So how much snow will NJ get?

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

As Arctic Council Ministers prepare to meet to outline priorities for the Council’s next two years, WWF has released a mapping tool to help inform those priorities. As Arctic Council Ministers prepare to meet to outline priorities for the Council’s ...

As the Earth warms, new shipping routes from one side of the globe to the other are opening around Greenland, making the vast island a strategic priority for superpowers.

An arctic blast will plunge most of the United States into "dangerously cold" territory this weekend, and maps shared by AccuWeather and the National Weather Service (NWS) reveal which states can expect to get hit the hardest by the arctic weather—one of ...

The National Geospatial-Intelligence Agency and the National Science Foundation publicly released new 3-D topographic maps of Alaska Sept. 1 in support of a White House Arctic initiative to inform better decision-making in the Arctic. The 3-D digital ...

The left panel shows the near-surface permafrost extent (bluish area, overlaid on satellite imagery) estimated by the most commonly used pan-arctic map product for a site in Alaska. The right panel shows the estimate for the same site generated by a new ...