St. Thomas, Ontario, Canada Severe Weather Alertstar_ratehome

Squalls with wind gusts up to 45 knots, frequent lightning and poor to very poor visibility in thunderstorms heavy at times are expected or occurring in the area.

A line of thunderstorms approaching western lake Erie and the Detroit River will move over the region and continue eastward over the next hour,

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Poor to very poor visibility may contribute to voyage delays and make marine navigation hazardous.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Conditions are favourable for the development of squalls with wind gusts up to 35 knots and poor to very poor visibility in thunderstorms heavy at times.

A line of showers or thunderstorms is expected to track across portions of Lake St. Clair and Lake Erie from west to east late this afternoon through this evening.

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Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Heavy rain expected today.

What:
Rainfall amounts of 20 to 40 mm.
The ground may have little ability to absorb further moisture due to recent rainfall events.

When:
Today through this evening.

Additional Information:
Much of the region will see a break in rainfall through the afternoon and early evening hours, however a line of heavy showers and possible thunderstorms is expected to track through this evening. The heaviest rain will occur in areas that receive thunderstorms.

For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit Ontario.ca/floods for the latest details.

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Water will likely pool on roads and in low-lying areas. Visibility will likely be suddenly reduced at times.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.