Winter storm updates: Dozens dead across US in wake of massive snowfall, deep freeze

This weekend’s massive winter storm brought 10 to 20 inches of snow to the Plains and the Northeast and dangerous sleet and freezing rain to the South, crippling travel.

As the snow ends Monday morning, nearly 270 million people across the central and eastern U.S. are under alert for dangerously cold temperatures.

In the South, the wind chill -- what temperature it feels like -- dropped Monday morning to minus 3 degrees in Dallas, 7 degrees in Austin, zero degrees in Little Rock, Arkansas, and 2 degrees in Nashville, Tennessee. Dallas, New Orleans and Austin may hit record low temperatures on Monday, and that brutal cold will continue into Tuesday.

In the Midwest, the Monday morning wind chill is hitting a dangerous minus 27 degrees in Minneapolis and minus 14 in Chicago.

And for the Northeast, the wind chills will see a major drop on Tuesday morning to minus 4 in Washington, D.C., minus 3 in Boston and minus 18 in Pittsburgh, Pennsylvania.

-ABC News' Daniel Manzo

The Louisiana Department of Public Health announced on Sunday that at least two people in the state had died from hypothermia in the ongoing winter storm.

Two men died in Caddo Parish, according to the agency.

Austin city officials confirmed on Sunday that at least one person has died during the ongoing winter storm.

Austin-Travis County EMS confirmed to ABC News that one person was found dead in the parking lot of an abandoned gas station early Sunday morning. Due to the circumstances, the presumed cause is hypothermia; however, ATCEMS cannot officially rule on causes of death. Only the medical examiner can make that determination.

The identity of the individual has not been released.

-ABC News' Vanessa Navarrete

Snow totals in the Northeast so far have reached: 13 inches in Bridgeport, Connecticut; 12 inches in Ridgefield, New Jersey; 11 inches in the Bronx in New York City; and 15 inches in Midland in western Pennsylvania.