Summer arrives in a serious way in the capital region just in time for Canada’s 151st birthday celebrations. Environment Canada has issued a special weather statement for the Ottawa-area. Here’s what we can expect:
4:37 AM EDT Wednesday 27 June 2018
Potential for heavy thunderstorms today followed by an extreme heat event for the Canada Day long weekend. Showers and thunderstorms are forecast to affect portions of central and eastern Ontario today into tonight. Total local rainfall amounts could be in the 20 to 40 mm range, with higher amounts possible under the heaviest storms.
A persistent southwest flow is then forecast to develop, bringing hot and humid air from the Gulf of Mexico to Southern Ontario. Beginning Friday or Saturday and continuing through the Canada Day long weekend, expected daytime highs are in the low to mid thirties with humidex values into the mid forties. Overnight low temperatures will only fall to the low twenties, providing little or no relief from the heat.
There is still uncertainty regarding when the heat event will come to an end, but its’ believed the heat could persist into the middle of next week.. (Environment Canada)
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