Whiteout conditions near the Unalaska airport. (Lauren Rosenthal/KUCB)

Unalaska’s White Christmas has come a day too late. A winter storm is heading through town, bringing gale-force winds and freezing temperatures. It’s expected to drop about four inches of snow on Wednesday, on top of the slush that accumulated throughout Christmas day.

The Department of Public Safety has issued a category one travel advisory this morning due to the slippery roads and blowing snow. Drivers should use headlights, and public safety director Jamie Sunderland says truck-trailers are authorized to use chains. That’s in accordance with a new ordinance approved this May, which prohibits truck drivers from using chains unless the city gives them permission to do so on bad-weather days.

The travel advisory will stay in effect until 12 pm Thursday, or until conditions improve.