Baltimore has issued a Code Blue Alert ahead of dropping temperatures expected Tuesday night.
Overnight lows are expected to be in the 20s, but with wind chills it could feel like 10 to 15 degrees.
FORECAST: Cold front to bring wintry showers
The Baltimore City Health Commissioner can declare a Code Blue when temperatures including wind chill are expected to be 13 degrees or lower or when conditions pose a significant threat to the health of vulnerable people living in the city.
People are encouraged to stay inside in the heat and check on elderly or at-risk neighbors to make sure they have heat and power.
Those living in the city can call 311 to report a neighbor that's without heat or power so city agencies can help.
"Extreme cold temperatures can permanently injure, or even kill. Hypothermia, or low body temperature, can be just as dangerous as extreme heat, so it is important to stay indoors in heated areas. Be sure to check on your elderly neighbors to ensure that they have heat and power tonight," health commissioner Leana Wen said in a release.