winter storm
Significant winter storm expected Sunday evening to Monday night.
What:
Freezing rain with 10 to 15 mm of ice accretion.
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 evening and continuing into Monday night.
Additional information:
Precipitation is expected to begin as freezing rain Sunday evening and continuing through the overnight. The freezing rain is expected to transition to snow through Monday morning. During the transition a period of ice pellets is possible. The strong northwesterly winds will pick up through Monday afternoon leading to reduced visibility from blowing snow and falling snow.
###
Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Prolonged utility outages 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 04:06
Until: Dec 28, 2025 20:06
winter storm
Significant winter storm expected Sunday afternoon to Monday night.
What:
Freezing rain with 5 to 15 mm of ice accretion.
Snowfall amounts of 10 to 15 cm.
Reduced visibility in heavy snow and blowing snow.
When:
Beginning Sunday afternoon through Monday night.
Additional information:
Precipitation is expected to begin as freezing rain Sunday afternoon continuing through the overnight. The freezing rain may transition to periods of rain or drizzle Monday morning as temperatures are expected to rise to near or just above the freezing mark. Any rain or drizzle will then change over to snow near midday Monday as temperatures quickly fall to below the freezing mark.
There remains some uncertainty regarding the track of the low pressure system and as a result exact precipitation amounts remain somewhat uncertain.
###
Roads and walkways will likely be difficult to navigate. Visibility will likely be suddenly reduced to near zero at times. Road closures are possible. Local utility outages are likely.
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 04:03
Until: Dec 28, 2025 20:03
winter storm
Significant winter storm expected Sunday evening to Monday night.
What:
Freezing rain with 10 to 20 mm of ice accretion.
Snowfall amounts of 10 to 15 cm.
Strong northwesterly winds with gusts of 60 to 70 km/h
Reduced visibility in heavy snow and blowing snow.
When:
Beginning Sunday evening and continuing into Monday night.
Additional information:
Precipitation is expected to begin as freezing rain Sunday evening and continuing through the overnight. The freezing rain is expected to transition to snow through Monday morning. During the transition a brief period of ice pellets is possible. The strong northwesterly winds will pick up through Monday afternoon leading to reduced visibility from blowing snow and falling snow.
###
Roads and walkways may be very difficult to navigate. Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Prolonged utility outages are possible. Significant property or tree damage is 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 21:57
Until: Dec 28, 2025 13:57
winter storm
Significant winter storm expected Sunday afternoon to Monday night.
What:
Freezing rain with 5 to 15 mm of ice accretion.
Snowfall amounts of 10 to 15 cm.
Reduced visibility in heavy snow and blowing snow.
When:
Beginning Sunday afternoon through Monday night.
Additional information:
Precipitation is expected to begin as freezing rain Sunday afternoon continuing through the overnight. The freezing rain is expected to transition to periods of rain or drizzle Monday morning as temperatures are expected to raise to just above the freezing mark. Any rain or drizzle will then change over to snow near midday Monday as temperatures quickly fall to below the freezing mark.
There remains some uncertainty regarding the track of the low pressure system and as a result exact precipitation amounts remain somewhat uncertain.
###
Roads and walkways will likely be difficult to navigate. Visibility will likely be suddenly reduced to near zero at times. Road closures are possible. Local utility outages are likely. Property or tree damage is 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 21:50
Until: Dec 28, 2025 13:50
weather
Freezing rain Sunday night and Monday morning.
What:
A long lasting period of freezing rain.
Ice accretion amounts of 5 to 10 mm.
When:
Sunday evening to Monday morning.
Additional information:
A rapidly intensifying low pressure system is expected to track over the Great Lakes. Precipitation is expected to begin as freezing drizzle or light freezing rain Sunday evening before transitioning freezing rain or ice pellets Sunday night. Freezing rain is expected to change to snow late Monday.
There remains some uncertainty regarding the track of the low pressure system and as a result exact ice accretion amounts are somewhat uncertain.
Local utility outages are possible. Travel conditions are expected to be difficult. Ice covered surfaces are likely.
###
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 10:23
Until: Dec 28, 2025 02:23
winter storm
A major winter storm expected Sunday evening to Monday night.
What:
Possible snowfall amounts of 10 to 20 cm.
Reduced visibility in heavy snow and blowing snow.
Freezing rain is possible.
When:
Beginning Sunday evening through to Monday night.
Additional information:
A rapidly intensifying low pressure system is expected to track over the Great Lakes. Precipitation is expected to begin as freezing drizzle or light freezing rain before transitioning to ice pellets or snow Sunday night. Snow mixed with ice pellets and freezing rain at times is expected to change to snow Monday afternoon and end overnight.
There remains some uncertainty regarding the track of the low pressure system and as a result exact precipitation amounts remain somewhat uncertain.
###
Roads and walkways may be difficult to navigate. Visibility may be suddenly reduced to near zero at times. Road closures are possible. Local utility outages 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 05:20
Until: Dec 28, 2025 02:16
weather
Significant snow expected today.
What:
Snowfall amounts of up to 10 cm.
When:
This afternoon into tonight.
Additional information:
Snow is expected to begin near noon and continue through the afternoon before ending from west to east through this evening. There is still some uncertainty regarding the track of the low pressure system, which may impact the eastern edge of the significant snowfall area.
Travel may be difficult due to the accumulating snow. Motorists should exercise caution and adjust travel plans accordingly.
###
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 26, 2025 09:40
Until: Dec 27, 2025 01:40
snowfall
Significant snowfall continues.
What:
Snowfall amounts near 15 cm.
Reduced visibility at times in heavy snow.
Reduced visibility in blowing snow near the North Channel and Manitoulin Island.
When:
Ending this afternoon.
Additional information:
Snow will end from west to east this afternoon. Strong winds from the southeast gusting up to 60 km/h near the North Channel and Manitoulin Island may reduce visibility to near zero at times in blowing snow.
###
Travel will likely be challenging. Visibility will likely be 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.
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 26, 2025 10:06
Until: Dec 27, 2025 00:04
weather
Significant snow possible Friday.
What:
Snowfall amounts of up to 10 cm.
When:
Friday afternoon into Friday night.
Additional information:
Snow is expected to begin near noon Friday and end from west to east through Friday evening. There is still some uncertainty regarding the track of the low pressure system, which may impact the eastern edge of the significant snowfall area.
Travel may be difficult due to the accumulating snow. Motorists should exercise caution and adjust travel plans accordingly.
###
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 26, 2025 03:03
Until: Dec 26, 2025 21:34
snowfall
Significant snowfall beginning tonight.
What:
Snowfall amounts near 15 cm.
Reduced visibility at times in heavy snow.
Reduced visibility in blowing snow near the North Channel and Manitoulin Island.
When:
Beginning tonight and ending Friday afternoon.
Additional information:
Snow, heavy at times, is expected to move into the region overnight. Snow will end from west to east during the day on Friday. Strong winds from the southeast gusting up to 60 km/h near the North Channel and Manitoulin Island may reduce visibility to near zero at times in blowing snow.
###
Travel will likely be challenging. Visibility will likely be 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.
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 26, 2025 03:25
Until: Dec 26, 2025 19:25
snowfall
Significant snowfall beginning tonight.
What:
Snowfall amounts near 15 cm.
Reduced visibility at times in heavy snow.
Reduced visibility in blowing snow near the North Channel and Manitoulin Island.
When:
Beginning after midnight and ending Friday afternoon.
Additional information:
Snow, heavy at times, is expected to move into the region overnight. Snow will end from west to east during the day on Friday. Strong winds from the southeast gusting up to 60 km/h near the North Channel and Manitoulin Island may reduce visibility to near zero at times in blowing snow.
###
Travel will likely be challenging. Visibility will likely be 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.
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 25, 2025 22:00
Until: Dec 26, 2025 14:00
snow squall
A frontal snow squall is expected.
What:
Near zero visibility at times in heavy snow and blowing snow.
West winds gusting up to 70 km/h.
When:
This evening.
Additional information:
A strong cold front will pass through the region this evening. This front will bring strong wind gusts and a frontal snow squall, briefly reducing visibility to near zero in heavy snow and blowing snow.
###
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 21, 2025 01:30
Until: Dec 21, 2025 07:00
snow squall
Lake effect snow squalls off Georgian Bay overnight into Saturday morning.
Hazards:
Snowfall amounts of 10 to 15 cm.
Low visibility in heavy snow.
Timing:
Overnight into Saturday morning.
Additional information:
Lake effect snow squalls are expected to develop with a cold southwesterly flow off Georgian Bay. Lake effect snow squalls will move south of the area Saturday morning.
###
Travel may be hazardous. Roads and walkways may be difficult to navigate due to accumulating snow.
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 12, 2025 20:29
Until: Dec 13, 2025 12:29
snow squall
Snow squalls expected off Georgian Bay tonight into Saturday.
What:
Snowfall accumulations of 10 to 30 cm.
Poor visibility in areas of heavy snow.
When:
Beginning tonight and ending Saturday afternoon or evening.
Additional information:
Lake effect snow squalls are expected to develop tonight near Georgian Bay. The lake effect activity is expected to shift south of the area Saturday afternoon or evening as winds become more northerly.
###
Travel may be hazardous. Visibility may 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 12, 2025 18:42
Until: Dec 13, 2025 10:42
snowfall
Heavy snow and local blowing snow expected.
What:
Total snowfall amounts of 10 to 20 cm.
Reduced visibility in heavy snow and blowing snow.
When:
Beginning this evening and ending Wednesday evening.
Additional Information:
Lake effect flurries, which could be heavy at times, are expected to push into the region this evening. An Alberta clipper will then push into the region on Wednesday bringing snow across the area which may be heavy at times. The snow is expected to end from southwest to northeast through the day Wednesday.
###
Travel will likely be challenging. Roads and walkways will likely be difficult to navigate due to accumulating snow. There may be a significant impact on rush hour traffic. Visibility will likely be 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.
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 09, 2025 19:05
Until: Dec 10, 2025 11:05
snow squall
Snow squalls will continue off of Georgian Bay today.
What:
Total snowfall amounts of 10 to 20 cm with locally higher amounts possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Ending this evening.
Additional information:
Lake effect snow squalls are expected to redevelop this afternoon. These snow squalls will be accompanied by southwesterly winds gusting up to 60 km/h. As a result, blowing snow will further reduce visibility.
###
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 09, 2025 15:54
Until: Dec 10, 2025 04:03
snow squall
Snow squalls will continue off of Georgian Bay today.
What:
Total snowfall amounts of 10 to 20 cm with locally higher amounts possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Ending this evening.
Additional information:
Lake effect snow squalls have developed this morning. There may be a brief break in snow squall activity later this morning before snow squalls strengthen this afternoon. These snow squalls will be accompanied by southwesterly winds gusting up to 60 km/h. As a result, blowing snow will further reduce visibility.
###
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 09, 2025 13:55
Until: Dec 10, 2025 04:03
snow squall
Snow squalls possible today.
What:
Total snowfall amounts of 10 to 20 cm with locally higher amounts possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This afternoon.
Additional information:
Snow squalls could develop ahead of an Alberta clipper today. Lake effect snow will be accompanied by southwesterly winds gusting up to 60 km/h. As a result, blowing snow will further reduce visibility.
###
Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Roads and walkways may be difficult to navigate due to accumulating snow.
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 09, 2025 10:33
Until: Dec 10, 2025 02:08
snow squall
Snow squalls are expected. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 20 to 40 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Continuing through early this morning.
###
Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow.
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 05:28
Until: Dec 06, 2025 21:28
snow squall
Snow squalls are expected to develop. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 10 to 15 cm possible.
Reduced visibility in heavy snow and local blowing snow.
When:
Continuing into this morning.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Conditions are expected to improve this morning. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Roads and walkways may be difficult to navigate due to accumulating snow.
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 05:26
Until: Dec 06, 2025 21:26
snow squall
Snow squalls off Georgian Bay possible.
What:
Total local snowfall amounts of 10 to 20 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Tonight into Saturday.
Additional information:
Snow squalls off of Georgian Bay may move south into the region tonight. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
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 06, 2025 03:50
Until: Dec 06, 2025 19:50
snow squall
###
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 06, 2025 03:50
Until: Dec 06, 2025 19:50
snow squall
Snow squalls are expected. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 20 to 40 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Continuing through early Saturday morning.
Additional information:
A band of lake effect snow has moved back into the region. This band of snow is located from Key Harbour northeast to Lake Nipissiing.
Conditions are expected to improve by Saturday morning.
###
Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow.
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 05, 2025 23:46
Until: Dec 06, 2025 15:46
snow squall
Snow squalls are expected to develop. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 10 to 15 cm possible.
Reduced visibility in heavy snow and local blowing snow.
When:
This evening through Saturday morning.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Conditions are expected to improve Saturday morning. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Roads and walkways may be difficult to navigate due to accumulating snow.
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 05, 2025 22:12
Until: Dec 06, 2025 14:12
snow squall
Snow squalls off Georgian Bay possible.
What:
Total local snowfall amounts of 10 to 20 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This evening into Saturday.
Additional information:
Snow squalls off of Georgian Bay may move south into the region tonight. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
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 05, 2025 20:15
Until: Dec 06, 2025 12:15
snow squall
Persistent snow squalls are expected to develop. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 10 to 20 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This afternoon through Saturday morning.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Conditions are expected to improve Saturday morning. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Roads and walkways may be difficult to navigate due to accumulating snow. 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 05, 2025 20:09
Until: Dec 06, 2025 12:09
snow squall
Snow squalls are expected. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 20 to 40 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Continuing through early Saturday morning.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Conditions are expected to improve by Saturday morning. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow. 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 05, 2025 19:58
Until: Dec 06, 2025 11:58
snow squall
Snow squalls off Georgian Bay possible.
What:
Total local snowfall amounts of 10 to 20 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This afternoon into Saturday.
Additional information:
Snow squalls off of Georgian Bay may move south into the region later today. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
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 05, 2025 16:18
Until: Dec 06, 2025 08:18
snow squall
Snow squalls are expected. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 20 to 40 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This morning through early Saturday morning.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Conditions are expected to improve by Saturday morning. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow. 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 05, 2025 14:13
Until: Dec 06, 2025 06:13
snow squall
Snow squalls are expected. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 20 to 40 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This morning through early Saturday morning.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Areas that will be mainly affected will be highway 69 near French River and vicinity. Conditions are expected to improve by Saturday morning. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow. 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 05, 2025 13:19
Until: Dec 06, 2025 05:19
snow squall
Persistent snow squalls are expected to develop. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 20 to 40 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This morning through Saturday afternoon.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Conditions are expected to improve Saturday afternoon. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Roads and walkways may be difficult to navigate due to accumulating snow. 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 05, 2025 08:23
Until: Dec 06, 2025 00:23
snow squall
Persistent snow squalls are expected to develop. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow, and snow will quickly accumulate.
###
Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Roads and walkways may be difficult to navigate due to accumulating snow. 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 05, 2025 08:16
Until: Dec 06, 2025 00:23
snow squall
Persistent snow squalls are expected to develop. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 20 to 40 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This morning through this afternoon.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Conditions are expected to improve this afternoon. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Roads and walkways may be difficult to navigate due to accumulating snow. 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 05, 2025 08:16
Until: Dec 06, 2025 00:16
snow squall
Snow squalls are expected. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate.
###
Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow. 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 05, 2025 08:14
Until: Dec 05, 2025 22:10
snow squall
Snow squalls are expected. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 20 to 40 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Early this morning into this afternoon.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Areas that will be mainly affected will be highway 69 near French River and vicinity. Conditions are expected to improve this afternoon. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow. 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 05, 2025 08:14
Until: Dec 05, 2025 22:10
snow squall
Snow squalls are expected. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 20 to 40 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Early this morning through early Saturday morning.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Areas that will be mainly affected will be highway 69 near French River and vicinity. Conditions are expected to improve by Saturday morning. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely be difficult to navigate due to accumulating snow. 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 05, 2025 08:24
Until: Dec 05, 2025 22:10
snow squall
Persistent snow squalls are expected to develop. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 15 to 25 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Friday into Saturday.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Conditions are expected to improve Saturday afternoon. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Roads and walkways may be difficult to navigate due to accumulating snow.
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 05, 2025 03:56
Until: Dec 05, 2025 19:56
snow squall
Persistent snow squalls are expected to develop. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow, and snow will quickly accumulate.
What:
Total local snowfall amounts of 20 to 40 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Friday into Saturday.
Additional information:
Lake effect snow will be accompanied by southwesterly winds gusting 40 to 60 km/h. As a result, blowing snow will further reduce visibility. Conditions are expected to improve Saturday afternoon. There is uncertainty with the exact locations of snow squalls that will develop and snowfall accumulations may be quite variable across the region.
###
Travel may be hazardous. Visibility may be suddenly reduced to near zero at times. Roads and walkways may be difficult to navigate due to accumulating snow. 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 04, 2025 18:41
Until: Dec 05, 2025 10:41
snow squall
Snow squalls continue this morning.
What:
Additional local snowfall amounts of 10 to 20 cm.
Reduced visibility at times in heavy snow.
When:
This morning into early afternoon.
Additional information:
The heaviest snow squalls are currently between Still River and Pointe au Baril extending northeastwards towards Loring. Higher snowfall amounts are possible if snow squalls remain stationary. Snow squalls are expected to weaken late this morning into early this afternoon.
###
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.
From: Dec 02, 2025 09:41
Until: Dec 02, 2025 21:06
snow squall
Snow squalls tonight.
What:
Local snowfall amounts of 20 to 45 cm.
Reduced visibility at times in heavy snow and blowing snow.
When:
Tonight through Tuesday morning.
Additional information:
The heaviest snow squalls are expected between French River and Pointe au Baril. Higher snowfall amounts are possible if snow squalls remain stationary. Snow squalls are expected to weaken Tuesday afternoon.
###
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.
From: Dec 02, 2025 05:30
Until: Dec 02, 2025 21:05
snow squall
Snow squalls intensifying this evening.
What:
Local snowfall amounts of 20 to 40 cm.
Reduced visibility at times in heavy snow and blowing snow.
When:
Tonight through Tuesday morning.
Additional information:
The heaviest snow squalls are expected between Key River and Pointe au Baril. Higher snowfall amounts are possible if snow squalls remain stationary. Snow squalls are expected to weaken Tuesday afternoon.
###
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.
From: Dec 02, 2025 01:35
Until: Dec 02, 2025 17:35
weather
Lake effect snow tonight.
What:
Local snowfall amount near 10 cm.
When:
Tonight.
Additional information:
Lake effect snow will taper off Tuesday morning.
Roads and walkways may be difficult to navigate due to accumulating snow.
###
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: Dec 02, 2025 04:21
Until: Dec 02, 2025 17:04
