Overnight Monday, temperatures in Hamilton are expected to dip below –15 C, the city says, prompting the medical officer of health to issue a cold alert.

With the wind chill, it will feel like –22 C, according to Environment Canada. There’s a chance for flurries in the evening.

Tuesday morning will feel like –20 C, with a wind chill of -12 in the afternoon. Temperatures will increase Wednesday to a high of 1 C.

The federal weather agency has not issued a warning for the area.

In Hamilton, the medical officer puts cold alerts in place when temperatures are expected to be below –15 C or feel like –20 or colder with the wind chill.

In response to the alert, the city and social service providers focus on providing warm spaces for people experiencing homelessness, such as recreation centres and library branches during regular business hours.

The best place for residents during a cold weather alert is indoors, says the medical officer of health. If people must be outside they should:

• Dress in layers of clothing. Keep inner layers dry. Wet clothing increases the risk of cold injury.

• Protect your face, ears and hands with a scarf, hat, and gloves.

• To protect your feet, socks must be dry. Wool is a good material to keep your feet dry.

• Drink warm fluids, but avoid caffeine and alcohol.

• Avoid strenuous exercise.