After days of hot and humid weather, parts of southern and eastern Ontario may be in for some turbulent weather Wednesday night.

In a special weather statement, Environment Canada said severe thunderstorms will bring much-needed rain but it’s not known which regions may be hit with violent weather.

Because of the uncertainty of the storm’s path, the national weather service is warning residents in a wide swath of the province – from Niagara Region to Grey and Bruce counties and east to Kingston – to pay attention to the weather and be aware of the potential of heavy rain, damaging wind gusts, intense lightning and hail Wednesday night and into Thursday morning.

The disturbance was approaching central Minnesota early Wednesday morning and is expected to reach the central Great Lakes in the evening.

Storms are expected to cross southern Ontario and generate much-needed rain from Lake Huron and Georgian Bay to Lake Ontario and possibly Lake Erie in what may be the most widespread rainfall in weeks, Environment Canada said.

General rainfall amounts of 15 to 30 millimetres are possible with higher amounts in the heaviest thunderstorms, according to the special weather statement.

“The thunderstorms may be quite intense with the potential for damaging wind gusts and large hail, in addition to the heavy downpours,” Environment Canada said. “A spectacular display of frequent and intense lightning will also likely accompany the storms.”

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