The Weather Network – The high potential for heavy storms in Ontario includes the risk of tornado

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Thursday, July 16, 2020, 1:20 p.m. – A network crossing southern Ontario could trigger severe thunderstorms Thursday, with the possibility of one or two tornadoes in the Niagara region.

After a brief break from the heat and thunderstorms, the two are expected to return to southern Ontario at the end of the week. A frontal border could trigger potentially violent thunderstorms over much of the south on Thursday, chance of a tornado or two in the Niagara region where a favorable wind directional shear will be present. Temperatures will start to rise, with daytime highs returning to 30 ° C on Friday and wetx values ​​close to or above 40 on weekends. Details and schedule, below.

Check out our full guide to summer 2020 for an in-depth look at summer forecasts, tips for planning them, and more


WEATHER HIGHLIGHTS:

  • Threat of severe thunderstorms in the northwest and south, with risk of tornado in Niagara
  • Heat intensifies on Friday, peaks on weekends
  • Temperatures and humidity will ease a bit early next week
  • Keep an eye on the weather ALERTS in your region

THURSDAY: RISK OF SERIOUS STORMS IN THE NORTH, SOUTH AND TORNADO POTENTIAL IN NIAGARA

A frontal border crossing Thursday will cause thunderstorms, possibly violent, in southern Ontario. He understands the threat of a tornado in Niagara. After a first rain and thunderstorms in the morning, the areas along the shores of Lake Ontario were able to observe a brief interruption of the rain in the middle of the afternoon.

However, storms could re-develop in the late afternoon and early evening, particularly in the Niagara region. Storms are expected to enter eastern Ontario in the late evening and persist overnight.

Those at risk of severe storms range from Windsor to Kingston, in a cottage, in eastern Ontario, as well as in the Nickel Belt region, with Niagara most likely to see them trigger. With favorable upper dynamics, with headwinds, there is a risk of a tornado or two in the Niagara region.. Storms can also cause torrential rain and strong gusts of wind. Hail will not be of great concern as the risk is low.

Meanwhile, in the northwest, a trough could trigger severe thunderstorms in the region in the late afternoon, early evening. Areas west of Thunder Bay and south of Highway 11 are more likely to see heavy storms develop, including supercells, but wind shear is limited.

ONRiskNW

After a few days of moderate temperatures, Thursday will begin to see daytime peaks climb in the south, but will remain below 30 ° C. With humidity, it will also feel like bass in mid-thirties in the south and northeastern Ontario.

WIND SHEAR MAY INCREASE THE RISK OF SEVERE STORM IN SOUTHERN ONTARIO

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