The latest on heavy rains in the Pacific Northwest (all times local):

7 a.m.

Washington state officials say it could be hours before a single lane is reopened on a major northwest thoroughfare that was swamped by a massive landslide triggered by days of pounding rain.

Some trucks have been stranded since Wednesday afternoon on the state's busiest highway. A shelter has been set up for stranded motorists at Woodland High School.

The Washington Department of Transportation says there's no estimate for when it can reopen northbound lanes of Interstate 5 near Woodland as rain soaks the already drenched Pacific Northwest.

The department said Thursday morning it's working to get one lane open.