Severe thunderstorms briefly turned tornadic in parts of southwestern Ontario Saturday evening, with two warnings issued for parts of the Bruce–Grey area, with tree and structure damage reported in their wake. Looking ahead, Sunday features more storm risk, though scaled back, and the week ahead sees several systems move through, making for some soggy weather. More details, below.
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SUNDAY: FEELS-LIKE VALUES COULD REACH 40, RAIN, SEVERE STORMS POSSIBLE
The atmosphere above southern Ontario was primed for severe storms Saturday, and it looks like that same heat and humidity will continue Sunday, with a humidex near or at 40 across southern Ontario and Quebec, though temperatures will be slightly warmer in the former.
Once again, that will help fuel severe thunderstorm risk across much of southern Ontario and Quebec. Indeed, the risk looks to be least along much of the 401 corridor in southern Ontario down to the Lake Ontario shores and the Niagara region. Almost all of the rest of the two provinces will have at least some severe risk.
Where storms do turn severe, they will be marked by strong winds, torrential rainfall, and large hail.
VACATION ALERT: STALLED BOUNDARY LEADS TO SWATH OF HEAVY RAINFALL THROUGH NEXT WEEK
Warm summer weather is likely to continue into next week, but that will come with an ongoing threat for more unsettled weather, as an active storm track develops along the stalled boundary. Despite a bit of a lull in the stormy pattern for the early part of the week, more widespread showers and thunderstorms return by mid-week, possibly impacting vacation plans and the Canada Day holiday.
There will be a daily threat for rain and thunderstorms, along with some peeks of sunshine in between, with many places seeing more than a month's worth of rain fall over the week. Drought-busting rains will bring totals of 75-150 mm over the next 7 days, temporarily eliminating the risk for forest fires.
"Of course this is disappointing news for those on vacation, however, there will also be periods of dry weather with sunshine and warm temperatures," says Dr. Doug Gillham, a meteorologist at The Weather Network. "So, it will not be as miserable as it may look if you just quickly glance at the weather icons in your forecast for the week."
The threat for showers and thunderstorms is expected through at least Friday, with a few days of cooler weather are expected as we head through next weekend -- thanks in part to a recurving typhoon in the western Pacific.
However, forecasters are still watching the potential for a period of very warm to hot weather after July 5.
Thumbnail courtesy of Aidan Stevens near Lucknow, Ont.
Be sure to check for the latest updates on the weather in your area.