SPOKANE — Snow-related roof collapses were spreading across Eastern Washington and Northern Idaho on Friday, and although no significant injuries have been reported, the close calls were getting closer.

Falling snow and the threat of avalanches kept Washington’s three main east-west mountain passes closed for most of New Year’s Day. Snoqualmie Pass reopened Thursday night while Stevens and White passes were reopened before noon Friday.

In Cheney, southwest of Spokane, Eastern Washington University officials announced Friday that “excessive accumulations of snow” in that city had made them decide to cancel classes for Monday. On its Web site, the university noted that parking on and near the campus is severely limited under the snowy conditions.

Eastern Washington said it hoped to resume classes Tuesday if snow conditions allow.

Washington has had at least two weather-related deaths in the past week, while 10 people have been killed in recent British Columbia avalanches.

Jeff Roma had been up clearing snow off the roof of his Spokane business, Buck’s Tire and Automotive, on Friday morning when the roof started to collapse.

“I heard it start to go and I had to get off,” Roma told The Spokesman-Review.

He was not injured.

In nearby Coeur d’Alene, Idaho, a business owner and his dog escaped just as a building roof caved in.

“My shop dog, Macine, and I ran out as it was coming down,” said Brian Rice, owner of Bedrock Jewelers, one of two tenants in the building.

The roof collapsed over a vacant space and the building was empty except for Rice and his yellow Lab.

Rice said he heard popping and cracking sounds, and Macine headed for the door. He followed her out while the eastern section of the building fell.

The risk of roof collapse caused a Spokane-area Costco to close Friday and hire a contractor to shovel its roof. In addition, three Wal-Mart stores were closed in the region while snow was cleared from their roofs, The Spokesman-Review reported.

About 4 to 5 inches of snow fell in Spokane on Friday, bringing the season’s total to 69 inches. More snow was expected Sunday.

The National Weather Service forecast colder temperatures and wind gusts of up to 36 mph in Eastern Washington and northern Idaho over the weekend.

More snow was expected in the Cascade and Olympic mountains over the weekend and rain or rain mixed with snow was possible in the Western Washington lowlands, the weather service said.