More than 2.7 million Texans are still without power as of Monday afternoon, according to poweroutage.us
About 150 million Americans are still under ice or winter weather advisories as Winter Storm Uri continues to produce dangerous conditions across much of the country, including perilous ice and low temperatures
The National Weather Service said that the forecast through early Tuesday predicts 8 to 12 inches of snow in central Oklahoma, and up to 8 inches in an area from eastern Texas to the Ohio Valley in the Northeast
By mid-morning on Monday, 3,000 flights had been canceled across the country, about 1,600 of them at Dallas/Fort Worth International and Bush Intercontinental airports in Texas
PICTURED: Four of six victims killed in the 133-car pile-up caused by Winter Storm Shirley after a FedEx truck plowed into a barrier when the driver lost control on an icy downhill stretch on a Texas freeway
Six people were confirmed dead following a 133 car pile up on Interstate 35 in Fort Worth, Texas, Thursday
The victims have been identified as 34-year-old Tiffany Gerred, Aaron Watson, 45, Michael Wells, 47, Christopher Vardy, 49, William Williams, 54, and 46-year-old Tamara Mendoza Querales
Officials say 65 people were treated for injuries, including 36 who were rushed to local hospitals
The crash occurred around 6am on Thursday, with video showing a FedEx truck sliding into a barrier before causing trailing cars to slam into one another