Sticky, unseasonable warmth stretching across the eastern United States this week will set the stage for a sprawling storm system that threatens to bring thunderstorms and heavy rain — weather more typical of spring than the dead of winter — from Thursday through Saturday.

A storm trekking eastward across the U.S. will bring storms to the Plains on Thursday, with snow possible in Texas.

Severe winter storms have triggered mass flight cancellations across Europe, stranding thousands of travelers at major hubs like Amsterdam and Paris.

The Clearwater River Basin saw a boost in its snowpack. Prior to the storm, the mountains that feed the Clearwater River and its tributaries with water had a snowpack measuring 71%. It jumped to 81% by Wednesday. The snowpack in the Blue Mountains that feed the lower Snake River Basin jumped from 46% of average Tuesday to 51% by Wednesday.

Oklahoma could see a severe thunderstorm risk with a low threat for tornadoes on Thursday. >> Download the KOCO 5 App | Subscribe to KOCO 5’s YouTube channel | Sign up for KOCO 5’s Morning Newsletter

The Mt. Hood National Forest announced a slate of roads and trails closed by storm damage, just as another winter storm began blowing across the mountain.

Heavy rain triggers flooding across the Southland, closing Santa Barbara Airport. While the Bay Area faces King Tide flooding, Southern California braces for debris flows in burn scarred areas.

The latest powerful storm to hit Southern California brought new mudflows and hazardous driving conditions to local mountain communities over the weekend. Wrightwood, in the San Gabriel Mountains,