Officials hope the changes will better illustrate to communities when they should worry about cold weather.
An abandoned car sits at Valley of the Moon Park in Anchorage, Alaska as colder weather moves through the area on November 20, 2023. NWS Alaska meteorologist Tim Markle said the warnings are designed to let community members know when the cold weather presents a risk to the community. However, the old system set wind chill warnings and advisories, which were statewide in scope, and only kicked in when there was a wind chill.
The new system updates advisories in two ways. The newly renamed extreme cold advisories and warnings no longer require a wind chill. And they’re regionally specific, instead of statewide. For example, Markle said an advisory in Anchorage would be at 25 below, and a warning would be 35 below. Ideally, Markle said, an advisory would represent a level of extreme cold that a community sees once or twice a year, and a warning would mark temperatures a community sees maybe once every few years. He said since the new advisories and warnings were launched in the fall, they’ve been issued in Interior communities like Fairbanks and Ft. Yukon and Southeast communities like Haines.
Cold Weather Advisory National Weather Service Tim Markle
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