It was seeming increasingly inevitable with the closure of almost all resorts in Europe this weekend, but the last 24 hours has seen the start of a mass closure of ski resorts across the United States. We'll endeavor to update this article as regularly as possible but the picture is changing by the hour. As it stands:

Colorado

The Governor of Colorado has ordered the closure of all CO ski resorts for at least a week, starting immediately.

Vail Resorts

All Vail resorts to close for at least a week with immediate effect. The resorts affected include Vail, Keystone and Breckenridge in Colorado; Park City Mountain Resort in Utah; Heavenly, Northstar and Kirkwood in the Lake Tahoe area of California and Nevada; Stowe Mountain in Vermont; and Whistler Blackcomb in British Columbia, Canada.

Alterra

Alterra has also closed all of its own resorts for a week to assess the situation. These resorts include: Steamboat and Winter Park in Colorado; Squaw Valley, Mammoth and Big Bear Mountain in California; Crystal Mountain in Washington; Stratton and Sugarbush in Vermont; and Deer Valley and Solitude in Utah.

Other Closures

Jay Peak, Vermont will close for the season with immediate effect. Alta Ski Area and Mt Bachelor have closed for at least a week, with starting today (Sunday 15th March). Taos and Santa Fe, New Mexico will close for the season immediately. Many more resorts, including Killington, Jackson Hole, Sugarloaf, Snowbasin, Big Sky and Brighton are all closed. We expect more closure announcements, amounting to all major resorts, in the course of the coming days.