In the Northeast, hail and sleet covered parts of Pennsylvania and New York. Other areas in the region are being covered with snow. More than 30 million people across the region are being advised for winter weather on Sunday morning.
It said a quarter to a half inch of ice is expected to build up on Sunday.
“Traveling conditions are extremely hazardous. Untreated surfaces will be very slippery. Isolated power outages may occur,” the NWS office said.
Residents are advised to avoid driving unless absolutely necessary.
“If you must travel, keep extra flashlights, food and water in your vehicle in case of an emergency,” says the NWS office at State College.
By Sunday afternoon, the chilly combination of winter precipitation in the Northeast will turn to freezing rain in most areas and snow at some higher elevations before ending tonight,
Vast swathes of New England are expected to reach anywhere from a layer of ice to a quarter of an inch on Sunday. But most of the ice sheet is forecast to be west of major metro areas.
There may be big storms and tornadoes in the South
More than 10 million people from eastern Texas to Florida could face strong to severe storms today.
The National Weather Service’s Hurricane Center said today there will be strong winds, several tornadoes and isolated large hail across parts of Louisiana, Mississippi and Alabama.
There is currently a Category 2 risk of 5 for severe storms across Louisiana, Mississippi and Alabama. These threatened cities include Jackson and Hattiesburg in Mississippi.
Flooding could also be an issue for parts of the Gulf Coast, with some areas expecting 2 to 3 inches of rain on Sunday.
Cold Arctic air covers the Upper Midwest
Chilly winds below zero are expected to engulf much of the Upper Midwest on Sunday.
A wind chill warning is in effect from Montana to Michigan’s Upper Peninsula, with the potential for wind chills of -20 to -40 degrees Fahrenheit.
High temperatures will be hard to come by above zero for parts of northern North Dakota and Michigan.
This cold spell will extend to the Great Lakes on Sunday and into the Northeast on Monday and Tuesday.
On Tuesday morning, areas inside the Northeast and New England could face sub-zero temperatures.
Brutal cold fronts and strong winds will result in heavy snowfalls of Lake Superior and Lake Ontario.