With temperatures plunging and multiple days of brutal temperatures in the forecast, Gov. Jared Polis issued a disaster declaration Friday — allowing the Colorado National Guard to help those in need of resources during the cold snap looming this weekend.

Polis’ declaration activates the Colorado State Emergency Operations Plan — a statewide framework for coordination and action during times of drastic emergencies and recovery. The next four days are expected to fit that description.

The weekend will see Colorado– and a big chunk of the nation — getting hit by a polar vortex, according to the National Weather Service. High temperatures are expected to hit single digits from Saturday to Monday, with lows below zero and wind chills as low as -20 degrees. Warmth will not peek its head until Tuesday, with temperatures returning to the 30s.

The disaster declaration directs the Department of Public Safety and its Division of Homeland Security and Emergency Management to “take all necessary and appropriate state actions to assist the affected jurisdictions with their response, recovery and mitigation efforts,” according to a Thursday news release from the governor’s office.

“No one should freeze to death in our state for lack of shelter. We are working with cities and local communities to ensure that everyone has a warm place to go during this extreme cold snap,” Polis said in the release.

The Colorado Public Utilities Commission noted in a press release that people should keep natural gas meters and dryer vents clear of snow and ice. People with fireplaces should also close dampeners when they aren’t using it to prevent heat loss.

Everyone is advised to avoid unnecessary travel and outdoor activities until Tuesday, according to the Governor’s Office.