SWPH issues heat warning from July 14-16
![Heat warning](/en/news/resources/Heat-Warning.png)
Southwestern Public Health (SWPH) issues heat warnings when Environment Canada forecasts temperatures that are expected to be at least 31 degrees celsius and/or a Humidex value above 40 degrees celsius for at least two days, with overnight temperatures at or above 20 degrees celsius.
Environment Canada is forecasting a multi-day heat event for Elgin, expected to begin on Sunday and may continue into Tuesday.
A hot and humid airmass will reach southern Ontario Sunday. Daytime maximum temperatures are expected to be 29 to 31 degrees celsius with humidex values near 40. There will be little relief at night as minimum temperatures are expected to be near 20 degrees celsius.
During extreme temperature conditions, stay indoors in an air conditioned building if possible, and limit time in the sun between 11 a.m. and 4 p.m. when the UV is the most intense. Also, drink plenty of water to stay hydrated, take cool showers or baths, apply sunscreen with SPF 30 or higher 20-30 minutes before going outside, and check on those who are most vulnerable to the heat.
Anyone who experiences physical stress due to extreme temperatures should seek immediate medical attention, either by calling 911 or by visiting the nearest emergency department.