A videograb shows boiling water evaporating in the thin air.

Gulf Today,  Staff Reporter

In Alaska’s capital temperature dropped to -23°C, prompting ice storm warnings and likely hazardous travel conditions.

The National Weather Service (NWS) said on Wednesday on its Twitter, “The Arctic chill continues into the weekend across Southeast Alaska. A High Wind Warning has been issued for Downtown Juneau and Skagway through late this evening for gusts to 60mph.

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“High winds combined with the cold air will make for dangerous wind chills. Bundle up!..”

The NWS also carried out an experiment in the cold.

It shared a video of boiling water evaporating in the thin air. 

The NWS wrote on Twitter, “The temperature dropped to -23°C at the Juneau Forecast office this morning, which means it’s time for a science experiment! What happens when boiling water interacts with sub zero air?

“The hot water rapidly cools and condenses into a cloud.”

The NWS said, “Coldest day in over a decade in Juneau as the airport dropped to a frigid - 20°C! Back here at the Juneau Forecast Office, the temperature has dropped to -25°C…”

The Arctic chill continues through the end of the week. Coldest temperatures expected in coming days in valleys and wind sheltered areas.

A weather system has already been punishing the Midwestern United States with the coldest temperatures of the winter forecast to spin to the south and West. The authorities issued ice storm warnings and likely hazardous travel conditions.

The cell of Arctic high pressure sitting over Canada that has driven temperatures some 20 or 30 degrees below normal in the US Midwest and northern plains will bring even rougher weather as it moves into central and southern states, the National Weather Service said.