weather
Late season snowfall continues.
What:
Total snowfall amounts of 5 to 12 cm.
Reduced visibility in heavy snow.
When:
Ending tonight.
Additional information:
Roads and walkways may be difficult to navigate due to accumulating snow. Motorists should allow extra time to get to their destination.
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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.
From: Mar 22, 2026 01:28
Until: Mar 22, 2026 10:01
blowing snow
Poor visibilities in snow and blowing snow Friday.
What:
Significantly reduced visibilities in areas of snow and blowing snow.
Strong winds gusting up to 70 km/h.
Total snowfall amounts near 10 cm.
When:
Beginning late Friday afternoon or early Friday evening and ending by Saturday morning.
Additional information:
Temperatures will drop rapidly in the wake of a cold front. Northwest winds gusting up to 70 km/h will result in blowing snow producing significantly reduced visibilities. Conditions will improve by Saturday morning.
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Travel will likely be hazardous due to near-zero visibility.
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.
From: Feb 26, 2026 22:23
Until: Feb 27, 2026 14:23
cold
A period of very cold wind chills is expected.
What:
Wind chill values near minus 40.
When:
Tonight into Tuesday morning.
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Extreme cold puts everyone at risk.
Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter.
Watch for cold related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes.
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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Jan 19, 2026 23:50
Until: Jan 20, 2026 15:50
winter storm
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Roads and walkways will likely be difficult to navigate. Travel will likely be challenging. Visibility will likely be suddenly reduced to near zero 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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 28, 2025 14:56
Until: Dec 29, 2025 06:56
winter storm
Significant winter storm expected overnight through to Monday night.
What:
Snowfall amounts of 10 to 20 cm.
Northwesterly wind gusts of 60 to 80 km/h.
Reduced visibility in heavy snow and blowing snow.
When:
Beginning overnight and continuing into Monday night.
Additional information:
Snow will begin overnight and continue through Monday night. The strong northwesterly winds will pick up through Monday morning leading to reduced visibility in blowing snow. The snow and winds will ease from west to east through Monday night.
###
Roads and walkways will likely be difficult to navigate. Travel will likely be challenging. Visibility will likely be suddenly reduced to near zero 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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 28, 2025 14:56
Until: Dec 29, 2025 06:56
winter storm
Hazardous winter storm expected tonight through to Monday night.
What:
Snowfall amounts of 30 to 50 cm.
Northwesterly wind gusts of 60 to 70 km/h.
Blizzard conditions.
When:
Beginning this evening and continuing into Monday night.
Additional information:
Snow will begin this evening continuing through Monday night. The strong northwesterly winds will pick up through Monday morning leading to blizzard conditions. The snow and winds will ease from west to east through Monday night.
###
Roads and walkways will likely be very difficult to navigate. Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Road closures are possible.
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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 28, 2025 11:00
Until: Dec 29, 2025 03:00
winter storm
Significant winter storm expected overnight through to Monday night.
What:
Snowfall amounts of 10 to 20 cm.
Northwesterly wind gusts of 60 to 70 km/h.
Reduced visibility in heavy snow and blowing snow.
When:
Beginning overnight and continuing into Monday night.
Additional information:
Snow will begin overnight and continue through Monday night. The strong northwesterly winds will pick up through Monday morning leading to reduced visibility in blowing snow. The snow and winds will ease from west to east through Monday night.
###
Roads and walkways will likely be difficult to navigate. Travel will likely be challenging. Visibility will likely be suddenly reduced to near zero 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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 28, 2025 10:58
Until: Dec 29, 2025 02:58
winter storm
Significant winter storm expected Sunday night into Monday night.
What:
Snowfall amounts of 10 to 20 cm.
Northwesterly wind gusts of 60 to 70 km/h.
Reduced visibility in heavy snow and blowing snow.
When:
Beginning Sunday night and continuing into Monday night.
Additional information:
Snow will begin Sunday night and continue through Monday night. The strong northwesterly winds will pick up through Monday morning leading to reduced visibility in blowing snow. The snow and winds will ease from west to east through Monday night.
###
Roads and walkways will likely be difficult to navigate. Travel will likely be challenging. Visibility will likely be suddenly reduced to near zero 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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 28, 2025 04:23
Until: Dec 28, 2025 20:23
winter storm
Hazardous winter storm expected Sunday night into Monday night.
What:
Snowfall amounts of 30 to 50 cm.
Northwesterly wind gusts of 60 to 70 km/h.
Blizzard conditions.
When:
Beginning Sunday night and continuing into Monday night.
Additional information:
Snow will begin Sunday evening continuing through Monday night. The strong northwesterly winds will pick up through Monday morning leading to blizzard conditions. The snow and winds will ease from west to east through Monday night.
###
Roads and walkways will likely be very difficult to navigate. Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Road closures are possible.
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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 28, 2025 04:14
Until: Dec 28, 2025 20:14
winter storm
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From: Dec 17, 2025 16:11
Until: Dec 28, 2025 14:57
winter storm
Significant winter storm expected Sunday night into Monday night.
What:
Snowfall amounts of 10 to 20 cm.
Strong northwesterly winds with gusts of 60 to 70 km/h
Blizzard conditions.
When:
Beginning Sunday night and continuing into Monday night.
Additional information:
Snow will begin Sunday evening continuing through Monday night. The strong northwesterly winds will pick up through Monday morning leading to blizzard conditions. The snow and winds will ease from west to east through Monday night.
###
Roads and walkways will likely be difficult to navigate. Travel will likely be challenging. Visibility will likely be suddenly reduced to near zero 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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 27, 2025 22:03
Until: Dec 28, 2025 14:03
winter storm
Hazardous winter storm expected Sunday night into Monday night.
What:
Snowfall amounts of 30 to 50 cm.
Strong northwesterly winds with gusts of 60 to 70 km/h
Blizzard conditions.
When:
Beginning Sunday night and continuing into Monday night.
Additional information:
Snow will begin Sunday evening continuing through Monday night. The strong northwesterly winds will pick up through Monday morning leading to blizzard conditions. The snow and winds will ease from west to east through Monday night.
###
Roads and walkways will likely be very difficult to navigate. Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Road closures are possible.
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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 27, 2025 22:00
Until: Dec 28, 2025 14:00
winter storm
Hazardous winter storm continues through Friday afternoon.
What:
Total snowfall amounts of 30 to 50 cm with higher amounts possible.
Reduced visibility in heavy snow and blowing snow.
Risk of freezing rain.
When:
Continuing through Friday afternoon.
Additional information:
Snow, at times heavy, will continue to affect the area. Any rain in the vicinity of Smooth Rock Falls to Little Abitibi Lake will change back over to snow this evening as temperatures rapidly fall below the freezing mark. Brief freezing rain is possible during this transition.
Northerly winds gusting 50 to 60 km/h, except up to 70 km/h south of James Bay will result in blowing snow through Friday afternoon. The combination of heavy snow and blowing snow may result in near zero visibility at times.
The highest snowfall amounts are expected to remain north of Highway 11 where total accumulations may exceed 50 cm locally.
Conditions will improve from west to east through Friday afternoon.
###
Roads and walkways will likely be very difficult to navigate. Visibility will likely be suddenly reduced to near zero at times. Road closures are possible.
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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 18, 2025 23:20
Until: Dec 19, 2025 15:25
winter storm
Hazardous winter storm expected.
What:
Total snowfall amounts of 30 to 50 cm
Strong northerly winds and reduced visibility in heavy snow and blowing snow.
When:
Tonight through Friday evening.
Additional information:
Strong northerly winds are expected to develop on Thursday night before easing Friday evening. The strong winds will cause blowing snow that could lead to near zero visibility at times in combination with heavy snowfall.
There is still some uncertainty with the low pressure system's track and therefore the swath of heaviest snow. Total snowfall amounts of 30 to 50 cm are possible with the potential for local amounts exceeding 50 cm.
###
Roads and walkways will likely be very difficult to navigate. Visibility will likely be suddenly reduced to near zero at times. Road closures are possible.
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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 17, 2025 16:11
Until: Dec 18, 2025 08:11
winter storm
Winter storm expected.
What:
Total snowfall amounts of 30 to 50 cm
Strong northerly winds and reduced visibility in heavy snow and blowing snow.
When:
Beginning late overnight, continuing through Thursday and Friday, and ending from west to east Friday night.
Additional information:
Strong northerly winds are expected to develop on Thursday night and easing through Friday night. The strong winds will cause blowing snow that could lead to near zero visibility at times in combination with heavy snowfall.
There is still some uncertainty with the low pressure system's track and therefore the swath of heaviest snow. Total snowfall amounts of 30 to 50 cm are possible with the potential for local amounts exceeding 50 cm.
###
Roads and walkways may be very difficult to navigate. Visibility may be suddenly reduced to near zero at times. Road closures are possible.
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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 17, 2025 10:00
Until: Dec 18, 2025 02:00
snow squall
Periods of brief but intense snowfall are expected. Visibility will be rapidly reduced due to the heavy snow combined with blowing snow.
What:
Brief periods of poor visibility in heavy snow and blowing snow.
Northwest winds gusting to 70 or 80 km/h.
When:
This morning.
Additional information:
Brief periods of heavy snow and blowing snow associated with a strong cold front will impact portions of northeastern Ontario this morning. Due to the brief nature of the heavy snowfall, significant accumulations are not expected.
###
Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero 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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 17, 2025 10:26
Until: Dec 17, 2025 17:19
snow squall
Periods of brief but intense snowfall are expected. Visibility will be rapidly reduced due to the heavy snow combined with blowing snow.
What:
Brief periods of very poor visibility in heavy snow and blowing snow.
Northwest winds gusting to 70 or 80 km/h.
When:
This morning.
Additional information:
Brief periods of heavy snow and blowing snow associated with a strong cold front will impact portions of northeastern Ontario this morning. Due to the brief nature of the heavy snowfall, significant accumulations are not expected.
###
Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero 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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 17, 2025 08:09
Until: Dec 17, 2025 15:03
winter storm
Hazardous winter conditions are possible.
Winter storm expected.
What:
Total snowfall amounts of 30 to 50 cm
Strong northerly winds and reduced visibility in heavy snow and blowing snow.
When:
Beginning Wednesday night and ending from west to east through Friday evening.
Additional information:
Strong northerly winds are expected to develop on Thursday night and easing through Friday night. The strong winds will cause blowing snow that could lead to near zero visibility at times in combination with heavy snowfall. There is still some uncertainty with the lows track and therefore the swath of heaviest snow. Total snowfall amounts of 30 to 50 cm are possible with the potential for local amounts exceeding 50 cm.
###
Roads and walkways may be very difficult to navigate. Visibility may be suddenly reduced to near zero at times. Road closures are possible.
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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 16, 2025 21:39
Until: Dec 17, 2025 13:39
snow squall
Brief, intense snowfall is expected. Visibility will be rapidly reduced due to the heavy snow combined with blowing snow.
What:
Possible near zero visibility in frontal snow squall.
Roads will quickly be snow covered and slippery.
When:
This morning.
Additional information:
A narrow but intense band of heavy snow is moving eastward across the region.
###
Visibility will likely be suddenly reduced to near zero 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.
For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
From: Dec 06, 2025 10:29
Until: Dec 06, 2025 17:03
snow squall
Snow squalls are no longer expected.
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From: Dec 06, 2025 13:32
Until: Dec 06, 2025 14:32
