2:16
Brendan Mcdermid/Reuters
A deadly winter storm that brought massive snowfall across the U.S. knocked out power to hundreds of thousands of people in the South and crippled travel in the Northeast.
At least 20 states declare state of emergency
At least 20 states have declared a state of emergency as the storm nears: Alabama, Arkansas, Delaware Georgia, Indiana, Kansas, Kentucky, Louisiana, Maryland, Mississippi, Missouri, New Jersey, New York, North Carolina, Pennsylvania, South Carolina, Tennessee, Texas and Virginia.
Washington, D.C., has also declared a state of emergency.
National Guardsmen from 12 states are activated for Fern
Hundreds of National Guard troops from 12 states — with eight states on alert — have been activated for Winter Storm Fern, according to National Guard Bureau Chief Gen. Steven Nordhaus.
He said the Guardsmen were "working tirelessly alongside interagency partners to clear roads, help stranded motorists and support communities in need" in a post on X.
Will Newton/Getty Images
In South Carolina, 220 Guardsmen have been called up for the response — in addition to 168 troops in Arkansas, about 100 in Maryland, roughly 180 in Missouri, and about 50 in Oklahoma.
-ABC News’ Christopher Boccia
Over 45,000 customers without power in Louisiana
Roughly 2% of power customers (45,325) across Louisiana are without service, according to Power Outage.US.
Impacts are concentrated in the northern part of the state with DeSoto (51%) and Ouachita (31%) counties affected more than others.
-ABC News’ Michael O’Keefe
Over 57,000 customers without power in Texas so far
Over 57,000 customers are without power Saturday afternoon in Texas amid the winter storm, according to Power Outage.US.
Over 540,000 customers without power
At least 540,363 customers were without power as of 6:00 a.m. ET on Tuesday, according to PowerOutage.us, with Tennessee, Mississippi, Louisiana and Kentucky hit the hardest.
At least 173,997 customers were without power in Tennessee, 140,375 customers in Mississippi, 99,614 customers in Louisiana and 28,072 in Kentucky, PowerOutage.us said.
Brett Carlsen/Getty Images
Also without power were 27,920 customers in Texas, 14,132 in South Carolina, 12,984 in Georgia, 10,412 in Virginia, 6,506 in West Virginia and 4,794 in Florida.
The Nashville Electric Service -- which as of Monday was the hardest-hit utility in the country according to PowerOutage.us -- said it planned to "double its workforce" to respond to the outages.
-ABC News' Aidan Gellert and Charlotte Slovin
