Ottawa Fire Services has issued an open-air fire ban for the city of Ottawa. All open-air fires are prohibited during a ban, even if you have an open-air fire permit. This ban applies to agricultural burns, brush pile burns, campfires, and wood-burning outdoor fireplaces. “There will be zero tolerance enforcement during the fire ban,” Ottawa Fire Services say. An extended heat warning remains in effect in the city, with high temperatures in the 30 C area and humidex values in the low 40s. Smoke from wildfires in northern Ontario and the Prairies has also blown over the city in recent days, leading to poor air quality. Ottawa has seen 21.7 millimetres of rain so far this month, with fewer than 7 mm in the last week. A chance of showers is in the forecast Thursday.