A round of frigid temperatures is sweeping across much of the United States this week, bringing dangerously cold conditions to millions and setting the stage for widespread disruptions.

At the Dakota Zoo in Bismarck, which closed last weekend due to cold, critters such as bison, elk and bighorn sheep don't mind the temperatures as they munch food to stay warm and

Storms have overwhelmed the state in recent years. On top of the floods, snow is expected soon. Sheets of rain drenched Kentucky in recent days, causing floods that turned roads and neighborhoods into rivers in a part of the country that has been pummeled by severe weather in recent years.

Here's what to know about the devastating floods that hit Kentucky over the weekend and the upcoming weather forecast.

Recovery efforts were underway across the eastern U.S. after a powerful storm inundated communities with heavy rain and caused at least 13 deaths.