Tornado watches issued in northern Ontario, high risk of storms

·2 min read
Tornado watches issued in northern Ontario, high risk of storms
Tornado watches issued in northern Ontario, high risk of storms

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Tornado thunderstorm watches have been issued in parts of northern Ontario there is a likely threat of severe thunderstorms capable of producing torrential rain and hail -- nickel to ping pong ball-sized -- target the region through Sunday evening. Conditions are favourable for the development of severe thunderstorms, which may produce isolated tornadoes and wind gusts near 100 km/h.

CURRENT TORNADO WATCHES

  • Fort Hope - Lansdowne House - Ogoki

  • Pickle Lake - Cat Lake

12:07 p.m. (EDT) - Strong thunderstorms are expected to develop across the region late this afternoon or this evening. These storms may be capable of producing isolated tornadoes.

A tornado watch does not mean a tornado has been spotted, however, it is issued when atmospheric conditions are favourable for the development of thunderstorms that could produce tornadoes.

Residents are advised to monitor the forecast closely and prepare to take shelter immediately if and when severe weather strikes.

ONNorth1
ONNorth1

Visit our Complete Guide to Summer 2021 for an in-depth look at the Summer Forecast, tips to plan for it and much more!

SUNDAY: SEVERE THUNDERSTORMS LIKELY, INCLUDES TORNADO THREAT

Severe thunderstorms lit up skies Saturday night across portions of southern Manitoba, and are still ongoing early Sunday morning through the Winnipeg area. As the day progresses, the storms will continue to push into northwestern Ontario through the morning.

The main threat comes Sunday afternoon for the region as clearing is expected, and the atmosphere continues to destabilize. A sharp line of storms is then expected to form along a boundary, which is likely to become severe by the late afternoon and early evening hours.

nwrisk
nwrisk

The line of storms is expected to be quite narrow, so not everyone will see storms. The main threats are large hail, strong winds, locally heavy downpours and the risk for a tornado or two as supercells are possible.

The strongest storm energy will be focused across northwestern Ontario including areas such as Kenora, Dryden, Sioux Lookout. This line of storms is expected to diminish later Sunday evening before reaching the Lake Superior shorelines.

However, there is still a risk for severe thunderstorms to the west and east of the aforementioned region -- extending into eastern Manitoba and another area in northern Ontario closer to the Quebec border, including Timmins and Kapuskasing. The main hazards in these areas are large hail, strong wind gusts and heavy rainfall.

LOOK AHEAD: HEAT WAVE SUBSIDES IN NORTHERN ONTARIO MID-WEEK, WARMTH RETURNS TO MANITOBA

Beyond Sunday, the heat wave will continue in northern Ontario through early next week with daytime highs in the upper 20s and lower 30s. It will turn much cooler mid-week, with thunderstorms for parts of the region from a passing cold front.

ONTempThurs
ONTempThurs

Sunshine and near seasonal temperatures late next week and a potential to return to above seasonal values next weekend.

Meanwhile, after a brief reprieve from the record-breaking heat Sunday, hot weather returns to southern Manitoba at times next week. There will also be no widespread rain for the southern Prairies through early next week.

Stay tuned to The Weather Network as we continue to update the potential for severe weather in northwestern Ontario Sunday.

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