Montreal about to be hit with another heat warning

A boy and girl dunk their heads in a water fountain during a heat wave in Montreal, Monday, July 2, 2018. (THE CANADIAN PRESS/Graham Hughes)

Environment Canada has issued a heat warning for southern Quebec starting Sunday afternoon.

Those in the greater Montreal area can expect the humidex to reach 40 degrees, it said.

The agency recommends planning your day around the cooler periods, staying hydrated, using air conditioners and fans, and moving to cooler spaces like malls, libraries, and shaded parks to avoid heatstroke.

It is recommended to avoid direct exposure to the sun and heat, to wear lightweight clothes and hats when outside.

Environment Canada also urges those who are around people at greater risk of heat illness — like seniors, those living alone, and other at-risk people — to check in multiple times a day.

Children and pets should not be left alone in parked vehicles.

Signs of heat exhaustion may include a headache, nausea, dizziness, thirst, dark urine and intense fatigue.

Heat stroke, which is a medical emergency, often manifests as red and hot skin, dizziness, nausea, confusion and change in consciousness.

If you suspect that you or a loved one is experiencing heat-related illness, Environment Canada advises calling emergency services.