Weather impacting Northern Ontario

Weather Advisories, Thunder Bay, Wawa, Nipigon, Wawa, Rossport

Alerts across Northern Ontario

THUNDER BAY – Environment Canada has issued alerts across much of the southern half of Northern Ontario. The Weather Radar at 20:45EDT shows that there is a significant storm cell headed right over Wawa Ontario.

Severe Thunder Storm Warning

Severe thunderstorm warning in effect for:

  • Agawa – Lake Superior Park

Updated or ended by 9:31 p.m. EDT.

A line of thunderstorms producing heavy rain is located over Lake Superior Provincial Park. Radar indicates that these thunderstorms have given rainfall amounts near 50 mm. An additional 20 mm is possible this evening.

Take cover immediately, if threatening weather approaches. Fast moving water across a road can sweep a vehicle away. Rapidly rising rivers and creeks can sweep away bridges, culverts, buildings, and people.

Special weather statements are in effect for:

Significant rain continues tonight through Tuesday morning for areas north and east of Lake Superior. Rain developing over Northwestern Ontario Monday morning.

Showers continue this evening from Lake Superior northeastwards towards Kapuskasing as a front remains nearly stationary over the area. These showers are expected to ease somewhat overnight however a developing low pressure system currently over South Dakota will spread rain over much of Northern Ontario early Monday morning. Total rainfall amounts of 25 to 40 mm are expected by Tuesday morning. Locally higher amounts may be possible due to thunderstorms where rainfall amounts may exceed 50 mm over the two day period. Rain will taper off in Northwestern Ontario Tuesday morning and late Tuesday for Northeastern Ontario.

  • Marathon – Schreiber
  • Nipigon – Rossport

Significant rain continues tonight through Tuesday morning for areas north and east of Lake Superior. Rain developing over Northwestern Ontario Monday morning.

Showers continue this evening from Lake Superior northeastwards towards Kapuskasing as a front remains nearly stationary over the area. These showers are expected to ease somewhat overnight however a developing low pressure system currently over South Dakota will spread rain over much of Northern Ontario early Monday morning. Total rainfall amounts of 25 to 40 mm are expected by Tuesday morning. Locally higher amounts may be possible due to thunderstorms where rainfall amounts may exceed 50 mm over the two day period. Rain will taper off in Northwestern Ontario Tuesday morning and late Tuesday for Northeastern Ontario.

  • Wawa – Pukaskwa Park
  • White River – Dubreuilville

Significant rain continues tonight through Tuesday morning for areas north and east of Lake Superior. Rain developing over Northwestern Ontario Monday morning.

Showers continue this evening from Lake Superior northeastwards towards Kapuskasing as a front remains nearly stationary over the area. These showers are expected to ease somewhat overnight however a developing low pressure system currently over South Dakota will spread rain over much of Northern Ontario early Monday morning. Total rainfall amounts of 25 to 40 mm are expected by Tuesday morning. Locally higher amounts may be possible due to thunderstorms where rainfall amounts may exceed 50 mm over the two day period. Rain will taper off in Northwestern Ontario Tuesday morning and late Tuesday for Northeastern Ontario.

Rainfall warnings are issued when total rainfall amounts of 50 mm in 24 hours are expected. Environment Canada meteorologists will continue to monitor the situation and will issue any warnings or statements as required.