The declaration activates a range of shelter and assistance services on the part of the city and affiliated agencies, including services for those experiencing homelessness.

The City Health Department has declared a code Blue Cold Alert through Thursday morning due to freezing temperatures expected this week.

After putting its cold-weather protocol in place for much of last week, the city of Santa Fe reactivated a "Code Blue" through Tuesday night. Code Blue is called when nighttime temperatures fall to 15 degrees or below and triggers citywide efforts to get homeless residents into overnight shelters.