Winter weather warnings are in place from eastern Texas east to Tennessee and into the mid Atlantic. In parts of Texas and Louisiana, a mixture of light freezing rain, sleet and snow could cause traces of ice buildup and light icing – mostly on raised surfaces – until Sunday morning.
Parts of northern Alabama, northern Georgia, northern South Carolina and eastern Tennessee are now subject to a winter storm warning, according to the National Weather Service (NWS). These areas can see about 2 to 5 inches of snow, especially at higher elevations.
There are now at least 14 million people on winter storm warning.
In northern Mississippi, most areas could also see up to an inch of snow until Monday morning. Some isolated locations, especially at higher elevations, might see a drop of more than 2 inches.
Total snowfall 4 to 8 inches higher is possible in the southern Appalachians in areas covered by winter storm warnings. Areas of the central Atlantic, including Washington DC, could see snow accumulations of 3 to 6 inches through Monday.
Additionally, winter weather warnings are in place in interior parts of New England where 3 to 5 inches of fresh snow are expected on Sunday.
Meanwhile, severe storms and torrential rains are forecast for part of the southeast.
A Level 2 in 5 risk of severe storms is in place Sunday in the southeast, including Savannah, GA; Tallahassee, Florida; Columbia, South Carolina; and Charleston, South Carolina. Thunderstorms with destructive gusts of wind, a few tornadoes and isolated large hail are all possible until Sunday evening.
Heavy rains are also possible over much of the southeast on Sunday as the storm system moves east, increasing the risk of flash flooding. A Level 2 in 4 risk of excessive precipitation is in effect for a small portion of southern South Carolina and eastern Georgia.
Arctic Air and Wind Chill Alerts
Temperatures on the east coast will be above average on Sunday before giving way to more seasonal air behind the passing storm system.
Meanwhile, below normal temperatures are expected over much of the central United States and cold air continues to spread south and east. Some places have seen temperatures drop 20 to 30 degrees since Saturday. Wind chill alerts affect more than 20 million people from Minnesota to north Texas.
The coldest air on Sunday morning will be on the northern level – where temperatures will stay well below zero with wind chills as cold as 50 below. Dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes.
As cold air rises southward, much of the southern coast and Gulf will experience high temperatures in the 1940s and 1950s from Sunday to Monday.
Heavy snow possible in the Pacific Northwest
Winter storm warnings and winter weather advisories are in effect for much of the Northwest Mountains in addition to the Sierras as a new system is brewing across the Pacific Northwest. This system will bring heavy snow and risk of displacement at these higher altitudes until Monday.
“A slowly moving cold front will produce 1 to 2 feet of snow for the northern Cascades and Olympic Mountains on Sunday before focusing on the southern Cascades on Monday, where 2-4 feet are likely,” the NWS said.
The snow will then spread further south throughout the day on Sunday, bringing 6 to 12 inches of snow to the northern Sierras and northern Rockies.
This system will also bring heavy rainfall to coasts and valleys where isolated areas could be at risk of flash floods.
Strong winds are also forecast in the region and strong wind alerts have been issued.
“These strong winds can cause significant blowing snow from the dry powdery snow that is currently on the ground. This can lead to significant reductions in visibility … especially over mountain passes and open terrain,” warned the weather service.
This reduced visibility will certainly result in some dangerous travel across the region to start the week.
Kentucky suspenders for winter
Several homes and buildings were damaged, power outages affected more than 1,000 customers and 75 roads were closed statewide due to flooding, according to a press release from the office of Kentucky Governor Andy Beshear.
Four tornadoes have touched down, the NWS reported, and investigations are still ongoing in several counties, according to the press release.
There were also at least seven landslides and washouts, and a bridge embankment was destroyed, according to the governor.
No deaths or injuries have been confirmed or reported so far, according to the press release.
CNN’s Eric Levenson contributed to this report.