California is facing more extreme weather, while the powerful winter system that had earlier triggered record rainfall, heavy snow and flooding in the Golden State was threatening the Plains with powerful winds and tornadoes Sunday night.
The big picture: The National Weather Service tweeted Sunday evening that the first of two new storm systems hitting northern California with rain and snow was causing "dangerous travel conditions," with blizzard warnings to take effect early Monday in the Sierra Nevada — where 4 to 7 feet of snow was set to fall this week.
A severe storm system was unleashing powerful winds and triggering tornado warnings for Texas, Kansas, Missouri and Oklahoma as it lashed the Plains over Sunday night.
The big picture: Damage to buildings and widespread power outages were reported in Oklahoma after the National Weather Service confirmed a tornado had struck the city of Norman late Sunday. There were reports of a suspected tornado in Mclean, east of Amarillo, Texas, earlier in the evening.