Tornado clocks have been issued in parts of southern Quebec as heavy storms hit the region on Thursday. A cold front that drives warm, unstable air will risk heavy storms, extending from Toronto to Montreal. Confidence is highest in severe storms scattered during the afternoon and early evening in eastern Ontario and southern Quebec, where storm dynamics seem more favorable for strong winds, heavy hail, rain torrential and even a possible tornado.
9:22 AM EDT – CURRENT TORNADO WATCHES: Tornado clocks are emitted when weather conditions are favorable for the development of storms that could produce tornadoes.
- Lachute area
- Saint-Eustache area
- Saint-Jérôme area
- Berthierville – Saint-Gabriel area
- Mascouche area
- Rawdon – Joliette area
- Mont-Tremblant – Sainte-Agathe area
- Area Sainte-Adele – Saint-Sauveur
- Area La Minerve – Rouge River
- Mont-Laurier area
- Saint-Donat area – Mont-Tremblant Park
- Saint-Michel-des-Saints area
- Fort William – Shawville Area
- Rapides-des-Joachims area
- Hare River area
- Low – Wakefield area
- Maniwaki – Gracefield area
- Papineau-Labelle reservation area
- Papineauville – Chénéville area
TORNADO 101: What you need to know to stay safe
The following is a broader view of the forecast:
A cold front rushing south and east of Ontario will carry a risk of severe to severe storms across the region during the day on Thursday.
Depending on the time of the front, with maximum daytime warming and atmospheric instability, eastern Ontario and southern Quebec would see the threat of the strongest storms. This is where the storm dynamics seem most favorable for strong winds, heavy hail, torrential rain and even a possible tornado.
Across the Greater Toronto Area (GTA) and the southern rural country, storm confidence is lower and it is likely to be more isolated from nature.
However, one or two storms in the early afternoon in the GTA cannot be ruled out, with torrential rains, strong winds and hail as the main threats.
RELATED: Don’t fall victim to these seven dangerous tornado myths
The eastern stretches of the GTA east of Ontario will have the greatest potential to see some scattered mid-afternoon storms. Passengers on Highway 401 should be alerted to the rapidly changing weather conditions at times.
“The type of storm in southern Quebec will be more widespread and linear in nature, with the potential for a developing storm line that would produce strong and damaging winds,” said Kelly Sonnenburg, a meteorologist with The Weather Network. “Heavy hail, torrential rain and an isolated tornado are also possible.”
Before 10 a.m., tornado surveillance was issued for parts of southern Quebec
“This is a dangerous and potentially deadly situation,” says Environment and Climate Change Canada (ECCC) on the clock. “Be prepared for bad weather. Take cover immediately, if the threatening weather is approaching.”
SEE BELOW: TORNADO SAFETY TIPS YOU NEED TO KNOW
DON’T MISS IT: As forecasters warn you of a serious danger
It is likely that the storms will be at dinner time through Sant Llorenç and will move to the eastern municipalities during the evening hours. Several storms can occur in southern Quebec, including the city of Montreal.
A cold front dive south Friday will bring another round of storms to parts of eastern Ontario and southern Quebec, but atmospheric dynamics do not seem so favorable for the stronger development of the storm.
ANOTHER DAY OF GREAT HEAT AND MOISTURE BEFORE A NICE AND REFRESHING FATHER’S WEEKEND
Before the storms and cold forehead appear, we will have to sweat another hot day on Thursday.
SEE ALSO: The best digital and analog thermometers for your own backyard
High daytime temperatures will be even warmer than Wednesday, with high temperatures ranging from the upper 20 degrees to the lower 30 degrees. Humidex values will be in the upper 30s and lower 40s. The timing of storms will have a major impact on high temperatures.
Friday seems to be a beautiful day behind the cold front. Temperatures will drop around the seasons during the day, with the possibility of showers and storms in the eastern sections of Ontario.
We look forward to a “sunny” weekend across Ontario, as this cooler pattern is temporarily installed for a few days. Abundant sunshine, lower humidity and pleasant temperatures will prevail, albeit slightly below the seasons. It will be a great Father’s Day for any outdoor plan.
Beyond that, a warming trend is forecast for early and mid-next week as the heat wave in the midwestern U.S. tries to spread to the region. There is uncertainty about where the boundary between tropical heat and humidity will be compared to more comfortable conditions.
Southwestern Ontario will probably have a couple of days of excessive heat with a humidex by the 1940s. This pattern favors a pair of MCS (mesoscale convective systems) near the warm front. Cooler weather is expected to return on weekends and weekends.
Below: MORE TIPS ON HOW TO BE SAFE IN THE EVENT OF A TORNADO
Stay tuned to The Weather Network for the latest conditions in Ontario and Quebec.