In the Northeast, freezing rain and sleet have covered parts of Pennsylvania and New York. Other areas of the region are being hit by snow. More than 30 million people across the region receive winter weather advisories on Sunday morning.
He said a quarter to a half inch of ice is expected to accumulate on Sunday.
“Extremely dangerous travel conditions. Untreated surfaces will be very slippery. Isolated power outages are possible,” the NWS office said.
Residents are urged to avoid driving unless absolutely necessary.
“If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency,” said the NWS office at State College.
By Sunday afternoon, the icy mix of winter precipitation in the Northeast will shift to freezing rain for most and snow for some of the higher elevations before ending tonight.
Wide swaths of New England are expected to get between a glaze and a quarter inch of ice on Sunday. But most of the ice accumulations are forecast to remain west of major metropolitan areas.
Severe storms and tornadoes possible in the south
More than 10 million people from East Texas to the Florida Peninsula could face strong to severe storms today.
“Damaging gusts, a pair of tornadoes and isolated large hail will be possible in parts of Louisiana, Mississippi and Alabama today,” the National Weather Service’s Storm Prediction Center said Sunday.
There is now a level 2 out of 5 risk of severe storms in Louisiana, Mississippi and Alabama. Cities under this threat include Jackson and Hattiesburg in Mississippi.
Flooding could also be a problem for parts of the Gulf Coast, with some areas expected to receive 2 to 3 inches of rain Sunday.
Freezing Arctic Air Engulfs the Upper Midwest
Freezing winds are expected to engulf much of the Upper Midwest on Sunday.
Wind chill alerts are in effect from Montana to Michigan’s Upper Peninsula, with possible temperatures of -20 to -40 degrees Fahrenheit.
High temperatures will have a difficult time getting above zero degrees in some parts of northern North Dakota and Michigan.
This intense cold will spread to the Great Lakes on Sunday and to the northeast on Monday and Tuesday.
By Tuesday morning, parts of the interior of the Northeast and New England could face freezing temperatures.
The brutally cold air and strong winds will lead to heavy lake effect snowfall downwind of Lake Superior and Lake Ontario.