Ontario Braces for Autumn with Rain, Snow, and Waterspout Threats

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Ontario Braces for Autumn with Rain, Snow, and Waterspout Threats

Ontario is preparing for a shift in weather patterns as autumn settles in. Chilly and wet conditions are expected, particularly across the Great Lakes region. This week, southern Ontario will experience an influx of lake-effect rain, with the possibility of thunderstorms, while northern areas may see some wet snow.

Weather Patterns and Impacts

This week, a cold upper-level trough is set to affect Ontario’s weather, leading to thunderstorms and showers. The storms will bring significant lake-effect rain, especially from Lake Erie, possibly impacting the Niagara region, including Fort Erie and Niagara Falls.

Rain and Snow Forecast

  • Heavy lake-effect rain could exceed 50 mm in the Niagara region.
  • Areas in northern Ontario may receive snow.
  • Weather conditions are expected to shift on Wednesday, with temperatures dropping to low double digits.

Ontario experienced its last 20°C day on Sunday. The shift towards cooler, more seasonal weather will mark the end of October. The forecast indicates prolonged periods of rain from Tuesday night into Wednesday, especially in Bruce County, where lake-effect rain may accumulate between 10 to 30 mm.

Recommendations and Preparedness

Residents should prepare for potential severe weather conditions, including thunder, hail, and graupel. It’s a good time for homeowners to ensure that structures are winter-proofed, especially with the colder weather on the horizon.

As the province braces for autumn’s arrival, it’s essential to stay updated on weather forecasts. This week’s weather will be a reminder of seasonal changes and the need for readiness as winter approaches.