Warnings
11:22 AM EDT Thursday 05 July 2018
Heat Warning in effect for:
Goderich – Bluewater – Southern Huron County
Listowel – Milverton – Northern Perth County
Stratford – Mitchell – Southern Perth County
Wingham – Blyth – Northern Huron County
The extreme heat event will continue today.
Temperatures are expected to be in the low to mid thirties with Humidex values likely to reach near forty again today.
A cool down is expected by Friday morning with the passage of a cold front.
Never leave people or pets inside a parked vehicle.
Extreme heat affects everyone.
The risks are greater for young children, pregnant women, older adults, people with chronic illnesses and people working or exercising outdoors.
Watch for the effects of heat illness: swelling, rash, cramps, fainting, heat exhaustion, heat stroke and the worsening of some health conditions.
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 [email protected] or tweet reports using #ONStorm.
Watches
12:22 PM EDT Thursday 05 July 2018
Severe thunderstorm watch in effect for:
Goderich – Bluewater – Southern Huron County
Listowel – Milverton – Northern Perth County
Stratford – Mitchell – Southern Perth County
Wingham – Blyth – Northern Huron County
Conditions are favourable for the development of dangerous thunderstorms that may be capable of producing torrential rain.
Scattered thunderstorms are expected to develop this afternoon across southern Ontario.
Given the high heat and humidity a few of these thunderstorms could be intense resulting in localized torrential downpours. These thunderstorms are expected to be slow moving, thus some locations could receive on the order of 25 to 50 mm of rain over a short period of time. Localized wind gusts up to 90 km/h will also be a concern.
Fast-moving water across a road can sweep a vehicle away. Strong wind gusts are also possible. Intense lightning is likely with any thunderstorm that develops. Heavy downpours can cause flash floods and water pooling on roads.
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 [email protected] or tweet reports using #ONStorm.
For more information:
http://www.emergencymanagementontario.ca/english/beprepared/beprepared.html.