As severe storms prompted at least nine tornado reports in parts of the central US, a barrage of snow, rain and harsh wind is forecast Monday in places from the West Coast to the Great Lakes, including some still without power following a similar string of severe weather last week.
More than 265,000 US homes and businesses were without power as of Monday, according to PowerOutage.us. About half in Michigan, which is bracing for another round of ice and snow to hit the region Monday. Outages were also reported in Oklahoma, Missouri, Indiana, Texas, and California, which was hit by a major winter storm last week.
In Oklahoma, at least seven tornadoes and 12 injuries were reported in Sunday's severe weather. Two tornadoes were reported in Kansas.
More than 100 other storm reports - including wind and hail - were recorded in parts of Oklahoma, Kansas and Texas as hurricane-force winds and severe thunderstorms tore through. A gust of 183km/hr was recorded In Memphis, Texas - equivalent to sustained wind in a Category 3 hurricane.
Pictured is the Oklahoma town of Norman, which was hit hard overnight.
Preliminary survey information from the National Weather Service office in Norman has confirmed the tornado Sunday night was at least an EF-2. The survey team will continue to survey the path "where significant damage is reported to have occurred," the weather service said, and more details about the wind speed, path length and tornado width will be available when the survey is completed.
As the storm shifts north, a slight risk for severe weather - possibly a few tornadoes and wind gusts - could impact cities including Indianapolis, Cincinnati and Columbus, Ohio. A tornado watch was in effect for parts of eastern Illinois and much of central Indiana, including Indianapolis and Champaign, Illinois, until 4pm local time, and tornado watch has been issued for portions of Ohio, eastern Indiana, and far northern Kentucky, in effect until 6pm, including Fort Wayne, Cincinnati, Dayton and Columbus.
Roofs were torn from houses in Norman.
"I got up and then the wind just threw me back. And I'm screaming," resident Frances Tabler told CNN affiliate KOCO.
"It was like a blizzard inside the house."
Wind turbines in the southern Sierra Nevada Mountains foothills are surrounded by fresh snow at unusually low elevations brought by a powerful storm near Mojave, California.
Truckers drive State Route 58 across the southern Sierra Nevada Mountains following its reopening in the wake of a powerful storm that brought snow to unusually low heights.
Ice-covered tree branches are seen on the ground after a freezing ice storm in Ypsilanti, Michigan.
Blizzard warnings went into effect Monday local time in the Sierra Nevada range as more rounds of rain and snow moved into California.
The new series of storms arrived even as parts of the state were still digging out from last week's powerful storm, which added to a massive snowpack left by a siege of "atmospheric rivers" in December and January.
East of Los Angeles, all roads to San Bernardino Mountain resort communities around Big Bear Lake remained closed because of last week's huge snowfall. One route to the Mojave Desert was open only to downhill traffic. In the San Gabriel Mountains, roads remained closed to the Mountain High resort, where the storm dumped 2.5m of snow.
Storm clouds and snow are seen over the San Gabriel mountain range behind Griffith Observatory in the Hollywood Hills, Los Angeles.
In this grab taken from video provided by KOCO, a view of the damage to a property after severe storms, in Shawnee, Oklahoma.