4:43 AM EDT Sunday 4 August 2024 Heat Warning in effect for: Montréal Island area One last hot day. Heat and humidity will continue today with humidex values above 35. In addition, tonight''s overnight period will remain warm with lows near 18 degrees Celsius. The feeling of discomfort will be particularly acute in urban areas, where temperatures could reach a few degrees higher. However, the heat and humidity will ease on Monday. The health risks are greater for older adults, infants and young children, pregnant people, people with physical and/or mental illnesses, and people with disabilities or mobility issues. Drink plenty of water regularly, even before you feel thirsty to decrease your risk of dehydration. Thirst is not a good indicator of dehydration. Check several times a day on older family, friends and neighbours. Make sure they are cool and drinking water. Reduce your heat risk. Schedule outdoor activities during the coolest parts of the day. Never leave people, particularly children, 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. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or tweet reports using #QCStorm . Watches 10:15 AM EDT Sunday 4 August 2024 Severe Thunderstorm Watch in effect for: Montréal Island area This afternoon and evening, conditions will be favourable for the development of severe thunderstorms capable of producing strong wind gusts, large hail and heavy rain. Remember, severe thunderstorms can produce tornadoes. Water-related activities may be unsafe due to violent and sudden gusts of wind over bodies of water. Lightning kills and injures Canadians every year. Remember, when thunder roars, go indoors! Severe thunderstorm watches are issued when atmospheric conditions are favourable for the development of thunderstorms that could produce one or more of the following: large hail, damaging winds, torrential rainfall. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or tweet reports using #QCStorm .