A heat warning continues to be in effect for Greater Sudbury. Temperatures will reach 29 or 30 C in many localities in Northeastern Ontario, with humidex values in the mid thirties expected later today.
However, a cold front will move through later today. A cooler and less humid air mass will arrive in its wake by this evening, heralding an end to this heat event.
Watch for the effects of heat illness: swelling, rash, cramps, fainting, heat exhaustion, heat stroke and the worsening of some health conditions.
Drink plenty of water even before you feel thirsty and stay in a cool place.
Never leave people or pets inside a parked vehicle.
Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion.