This week’s storm, which dropped several feet of snow on the California mountains and wet other areas with torrential rain, is heading for the Midwest and eventually the Northeast.
The weather system, which was the season’s first to have coast-to-coast consequences, was also threatening severe thunderstorms in parts of the South, according to the Weather Channel.
It was too early to tell how it would affect the Northeast, but there was a chance of snow, sleet, or freezing rain by late Wednesday or Thursday as weak cold fronts pushed temperatures to lower ahead of the storm’s arrival.
On Sunday, the Sierra Nevada was blanketed with snow, with gusts that shuttered mountain highways and forced the closure of a Lake Tahoe ski resort.
Flood warnings were issued for parts of California and Nevada at lower elevations.
A 250-mile area from Reno to Yosemite National Park was under snowstorm warnings that lasted until early Monday.
Wind gusts of up to 100 mph shook lift seats in Lake Tahoe, forcing at least one resort to suspend operations.
Mammoth Mountain received just under 2 feet of snow on Saturday and expected another 2 feet as the storm moved into the eastern Sierra.
According to the UC Berkeley Central Sierra Snow Lab at Soda Springs, Calif., more than 43 inches of snow fell in just 48 hours.
There is no visibility along a 70-mile length of US highway. Interstate 80 eastbound was closed between Colfax, California, and the Nevada state boundary.
The National Weather Service forecast 6 to 12 inches more rain “possible through Monday for the Great Basin, Central Rockies, Arizona, and southern California highlands.”
Avalanche warnings were also issued for the rugged wilderness west of Lake Tahoe and parts of central and southern Idaho.
The big storm will move slowly over the United States over the next week, with rain expected in southern California.
The battery could bring frigid temperatures and up to a foot of snow to regions above 5,000 feet elevation in Arizona.
The storm will arrive in the Plains midweek with considerable rain and below-average temperatures, according to NWS meteorologist Marc Chenard, who noted Sunday that “it will be a busy week while this system progresses across the country.”