Environment Canada has issued a severe thunderstorm warning for London and Middlesex County ahead of potential severe storms late Wednesday afternoon and evening.
The national weather agency issued the warning around 5:30 p.m., saying that a line of severe thunderstorms located from 10 kilometres east of Southhampton to Lambton Shores was tracking east at 65 km/h.
The hazards for the storms, the advisory says, are 90 km/h gusts and nickle-sized hail.
The warning comes on top of a separate severe thunderstorm watch which was issued earlier in the afternoon. In addition to the late afternoon storms, the watch says another line of thunderstorms could also make its way to the region in the evening or overnight hours.
It’s the latest in a string of extreme weather this week.
Officials with Western University’s Northern Tornadoes Project (NTP) have confirmed that severe weather that passed through the London area Tuesday afternoon produced a preliminary EF0 tornado.
A heat warning also remains in effect for the region due to daytime highs in the high 20s to low 30s, feeling closer to 40 with the humidex, and overnight lows above 20 C. A one-day heat alert, set to take effect Thursday, has also been issued by the Middlesex-London Health Unit.
Environment Canada also issued a special weather statement Wednesday morning, which has since lifted, over concerns of frequent lightning and heavy downpours in the early morning hours.
On Monday, Global News meteorologist Ross Hull said this could be the hottest week of the summer for London, though he anticipated that cooler weather would arrive towards the end of the workweek.
As of Wednesday afternoon, the forecast calls for a high of 31 C Thursday with a chance of showers and an overnight low of 21 C before the temperature climbs throughout the day Friday to 25 C with an overnight low of 12 C.
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