Special weather statement
Conditions are favourable for the development of dangerous thunderstorms that may be capable of producing strong wind gusts and torrential rain.
Hazards:
Torrential rain.
Wind gusts up to 90 km/h.
Timing:
Continuing early this morning.
Discussion:
An area of thunderstorms has developed from Michigan and may affect southwestern Ontario early this morning. There is still some uncertainty as to the development and exact track of these thunderstorms, however, torrential downpours and moderate to strong winds are possible should these thunderstorms track over the area.
Strong wind gusts can toss loose objects, damage weak buildings, break branches off trees and overturn large vehicles. Heavy downpours can cause flash floods and water pooling on roads. 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.
The Office of the Fire Marshal and Emergency Management recommends that you take cover immediately if threatening weather approaches.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.
For more information: http://www.emergencymanagementontario.ca/english/beprepared/beprepared.html.
Heat warning
Hot and humid conditions are expected to continue today.
Daytime temperatures will reach the high twenties or low thirties once again with humidex values near 40. High temperatures Friday may also reach the upper twenties with humidex values again approaching 40 before cooler and less humid air arrives Friday night.
Warm temperatures above 20 degrees tonight will provide little relief from the heat.
Hot and humid air can also bring deteriorating air quality and can cause the Air Quality Health Index to approach 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.
Drink plenty of water even before you feel thirsty and stay in a cool place.
Reduce your heat risk. Schedule outdoor activities during the coolest parts of the day.
Never leave people or pets inside a parked vehicle.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.
Today – August 12, 2021
Showers with thunderstorms ending this morning then clearing. Wind southwest 20 km/h gusting to 40. High 31. Humidex 42. UV index 7 or high.
Tonight
Increasing cloudiness. Wind becoming southwest 30 km/h near midnight then light overnight. Low 21.
Fri, 13 Aug – Cloudy. 60 percent chance of showers in the morning and early in the afternoon with risk of a thunderstorm. Wind southwest 30 km/h becoming light early in the afternoon. Wind becoming north 30 gusting to 50 late in the afternoon. High 28 with temperature falling to 24 in the afternoon. Humidex 34. Night – Cloudy periods. Low 14.
Sat, 14 Aug – A mix of sun and cloud. High 25. Night – Cloudy periods. Low 13.
Sun, 15 Aug – A mix of sun and cloud. High 26. Night – Cloudy periods. Low 15.
Mon, 16 Aug – A mix of sun and cloud. High 27. Night – Cloudy periods. Low 17.
Tue, 17 Aug – A mix of sun and cloud. High 28. Night – Cloudy periods. Low 19.
Wed, 18 Aug – A mix of sun and cloud. High 28.
