Heat warning issued for Hamilton, as Environment Canada says it may feel like 44 on Thursday

Environment Canada has issued a heat warning for Hamilton, Burlington, Niagara and area with a heat event is expected to begin Thursday.

The federal weather agency says the hottest conditions are expected on Thursday, with slightly cooler daytime highs Friday and into the weekend. However, overnight lows will remain unseasonably warm, offering little relief.

Environment Canada says daytime temperatures are predicted to reach near 35 C, with humidex values expected to reach 44 on Thursday. On Friday the forecast calls for a daytime high of 30 C, with peak humidex values near 40.

Meanwhile, Hamilton's medical officer of health has also issued a heat warning beginning Thursday.

Cooling centres available throughout heat event

The city says cooling centres — identified by "Cool Down Here" signs — will be available throughout the heat event.

As part of the city's heat response plan, all regularly scheduled open swims at indoor and outdoor pools will be free, and residents are encouraged to make use of spray pads, community centres and other designated cool places.

Hamilton Public Health is reminding residents to take steps to avoid heat-related illness, including:

• Drinking plenty of water, avoiding alcohol and caffeine.
• Staying in air-conditioned spaces or visiting city-designated cool area.
• Wearing loose, light-coloured clothing and using sunscreen.
• Limiting outdoor physical activity to early morning or evening hours.
• Taking cool baths or showers.
• Closing blinds and circulating air with fans.
• Checking on vulnerable neighbours and family members.
• Never leaving children or pets in closed vehicles.

Landlords are also being encouraged to ensure tenants have access to cool indoor spaces.

Symptoms of heat exhaustion include heavy sweating, pale or clammy skin, weakness, nausea, fainting, and vomiting. Residents are advised to seek help immediately if symptoms appear.