Heat warning, thunderstorms, high 31°C

Special weather statement

Details, here.

Heat warning

Multi-day heat event expected, possibly lasting until Sunday.

Daytime high temperatures of 31 to 33 degrees Celsius with humidex values near 40 are expected for the next five days. Overnight lows near 21 degrees Celsius will provide little relief from the heat.

Slightly cooler temperatures are expected on Sunday.

Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high risk category.

Watch for the effects of heat illness: swelling, rash, cramps, fainting, heat exhaustion, heat stroke and the worsening of some health conditions.

Check on older family, friends and neighbours. Make sure they are cool and drinking water

Seek a cool place such as a tree-shaded area, swimming pool, shower or bath, or air-conditioned spot like a public building.

Never leave people or pets inside a parked vehicle.

Ask a health professional how medications or health conditions can affect your risk in the heat.

Watch for the symptoms of heat illness: dizziness/fainting; nausea/vomiting; rapid breathing and heartbeat; extreme thirst; decreased urination with unusually dark urine.

Keep your house cool. Block the sun by closing curtains or blinds.

Outdoor workers should take regularly scheduled breaks in a cool place.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or tweet reports using #ONStorm.

Today – July 20, 2022

Clear early this morning then a mix of sun and cloud with a few showers beginning this afternoon. Risk of a severe thunderstorm late this afternoon. Wind becoming southwest 30 km/h gusting to 50 early this morning. High 31. Humidex 39. UV index 10 or very high.

Tonight

A few showers ending this evening then partly cloudy. Risk of a severe thunderstorm early this evening. Wind south 20 km/h gusting to 50 becoming west 30 near midnight. Low 21.

Thu, 21 Jul – Mainly cloudy. Wind west 30 km/h. High 31. Humidex 38. UV index 8 or very high. Night: Clear. Low 21.

Fri, 22 Jul – Sunny. High 33. Night: Cloudy periods with 60 percent chance of showers. Low 22.

Sat, 23 Jul – Cloudy with 60 percent chance of showers. High 31. Night: Showers. Low 22.

Sun, 24 Jul – Showers. High 29. Night: Cloudy with 70 percent chance of showers. Low 19.

Mon, 25 Jul – A mix of sun and cloud. High 28. Night: Cloudy periods. Low 19.

Tue, 26 Jul – A mix of sun and cloud. High 29.

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