Extended Heat Warning Notification for the City of Hamilton effective September 5, 2023

HAMILTON, ON – The Medical Officer of Health for the City of Hamilton has initiated an Extended Heat Warning beginning today. The Extended Heat Warning stays in effect until a cancellation notice is sent.

A hot and humid airmass is expected through Wednesday. Daytime highs are expected to be 29 to 34 degrees Celsius with Humidex values near 40.  Overnight lows will be 18 to 22 degrees Celsius bringing little relief from the heat. Humidex values and daytime highs will be very atypical of early September. The passage of a cold front will bring an end to the heat Thursday.

The City of Hamilton and participating community agencies are responding to the heat by offering “cool places” to go during all stages of a heat event. These locations can be identified by a “Cool Down Here” sign at the entrance.

All outdoor pools have closed for the season, beginning September 5, 2023. 

As part of the heat response plan regularly scheduled Open Swims at all City of Hamilton indoor pools will be free of charge. For more information visit www.hamilton.ca/heat.

Signs of heat exhaustion include heavy sweating, weakness, cold, pale and clammy skin, weak pulse, fainting and vomiting. If experiencing symptoms, seek help right away – call 9-1-1 if needed.

Reduce your risk of heat-related illness by following these precautions:

• Drink plenty of water. Avoid drinking alcoholic and caffeinated beverages on hot days.
• Go to an air-conditioned place. Visit a designated cool place listed on www.hamilton.ca/heat
• Dress to protect from the heat. Wear lightweight, loose-fitting, light coloured clothing. Wear a hat or take an umbrella to keep your head cool and don’t forget sunscreen.
• Take it easy. Limit physical activities (walking, running, gardening, etc.) during the day. If rescheduling activities to dawn or dusk when it may be cooler, protect yourself with insect repellant as mosquitoes are more active at such times. Check labels to apply.
• Cool off. Take a cool bath or shower.
• Keep your living space cool. Close your blinds or curtains. Open windows to let air circulate when using a fan.
• Never leave children or pets alone in closed vehicles. Temperatures in a car can become life threatening within minutes.
• Check on your neighbours and family.
• Landlords can help to decrease the risk of heat-related illness for tenants. Connect with tenants to determine if units have adequate cooling.  If not, provide tenants with onsite access to a cool space accessible throughout the heat warning, such as a common room with air conditioning.