From heat to snow: Rocky Mountains see 60-degree plunge

Summer came to an abrupt halt in parts of the Rocky Mountains on Tuesday as temperatures reaching into the 90s plunged about 60 degrees in less than 24 hours, with a powerful surge of cold air from Canada unleashing snow ...

The current winter is a big win for seasonal forecasts

Seasonal forecasts for this winter were markedly accurate, with mild conditions in Northern Europe in December and January predicted already in October. Researchers in the S2S4E project are now working to find out how to ...

A relationship between severe winter weather and Arctic warmth?

A new review article published in Nature Climate Change evaluates whether severe winter weather in the United States, Europe and Asia is sensitive to Arctic temperatures. The lead author is NSF-funded scientist Judah Cohen, ...

Warm ocean water delays sea ice for Alaska towns, wildlife

The U.S. research vessel Sikuliaq can break through ice as thick as 2.5 feet (0.76 meters). In the Chukchi Sea northwest of Alaska this month, which should be brimming with floes, its limits likely won't be tested.

Snow may have delayed some blooms for the first day of spring

The first day of spring, when daylight hours begin to exceed nighttime hours, seems especially significant this year—record warm temperatures in the Northwest are marking the change of seasons. But our blooms may be a couple ...

Long, cold winter won't affect fire season, says expert

Alberta's long, cold winter won't do anything to dampen the 2019 wildfire season, but being extra careful when working and playing in the forests this spring could help, says a University of Alberta expert.

Warming in the stratosphere leads to cold winters

In the first week of January, the Arctic stratosphere suddenly warmed up, an occurrence known as "sudden stratospheric warming" (SSW). This phenomenon results in cold winter weather, just the kind we are facing now – ETH ...

Warmer winters mean more rain on the Svalbard archipelago

It's often said that the Arctic is one of the places most vulnerable to climate change. Temperatures are climbing faster there than anywhere else on the planet. Increasing winter temperatures mean increasing amounts of rain ...

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