weather
Rain tonight, followed by gusty winds and rapidly falling temperatures Friday.
What:
Total rainfall amounts of 10 to 20 mm.
Rapidly falling temperatures resulting in surfaces becoming icy and slippery.
Westerly to northwesterly winds gusting 60 to 80 km/h.
When:
Tonight through Friday night.
Additional information:
Rain will overspread the area tonight before changing over to flurries from west to east through the day on Friday as temperatures rapidly fall below the freezing mark. This will be the result of a strong cold front passing through the area.
Southerly winds will abruptly become westerly to northwesterly upon the passage of the cold front with gusts of 60 to 80 km/h. Winds are expected to ease through Friday evening, except after midnight for far eastern Ontario.
Flurries and snow squalls off Lake Huron and Georgian Bay are also expected behind the front.
Roads and walkways may become icy and slippery.
Travel may become difficult at times.
Local utility outages are possible.
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.
###
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 18:59
Until: Dec 19, 2025 10:59
snow squall
Snow squalls continue today.
What:
Additional snowfall accumulations of 5 to 10 cm today with locally higher amounts possible.
Storm total accumulations of 10 to 20 cm.
Poor visibility in areas of heavy snow and blowing snow.
When:
Continuing through this afternoon.
Additional information:
Lake effect snow squalls off Georgian Bay will continue to affect western portions of the region today before weakening this afternoon.
###
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 14, 2025 13:36
Until: Dec 15, 2025 01:01
snow squall
Lake effect snow will continue through the day. However, snow squall conditions are no longer expected.
###
From: Dec 14, 2025 18:23
Until: Dec 14, 2025 19:23
snow squall
Snow squalls continue this morning.
What:
Additional snowfall accumulations of 5 to 10 cm today with locally higher amounts possible.
Storm total accumulations of 10 to 20 cm.
Poor visibility in areas of heavy snow and blowing snow.
When:
This morning.
Additional information:
Lake effect snow squalls off Georgian Bay are expected to shift south of the area this morning as winds become northerly.
###
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 14, 2025 09:21
Until: Dec 14, 2025 15:59
snow squall
###
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 14, 2025 09:21
Until: Dec 14, 2025 15:59
snow squall
Snow squalls weakening later tonight.
What:
Total snowfall amounts of 30 to 50 cm. Locally higher amounts in excess of 75 cm possible in the most persistent lake effect snow bands.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Tapering off later tonight.
Additional information:
An intense and nearly stationary band of lake effect snow has affected the area from roughly Wasaga Beach to Angus for much of the day. This band is expected to weaken later tonight.
Snowfall amounts will be highly variable across the area.
Northwesterly winds gusting to near 50 km/h will result in local blowing snow further reducing visibility.
###
Travel will likely be extremely 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 11, 2025 21:59
Until: Dec 12, 2025 13:02
snow squall
Snow squalls weakening tonight.
What:
Additional snowfall amounts of 5 to 10 cm.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Tapering off overnight.
Additional information:
Snow squalls are expected to weaken through the overnight.
Northwesterly winds gusting to near 50 km/h will result in local blowing snow further reducing visibility.
###
Travel may be extremely hazardous. 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 12, 2025 02:48
Until: Dec 12, 2025 10:02
snow squall
Snow squalls possible today.
What:
Total snowfall amounts near 15 cm, particularly for areas north of Newmarket and west of Georgina.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This afternoon through this evening.
Additional information:
Snow squalls will affect areas to the northwest of York Region today, but may extend into the region at times.
Snow squalls are expected to weaken this evening. Snowfall amounts will be highly variable across the area.
Northwesterly winds gusting to near 50 km/h will result in local blowing snow further reducing visibility.
###
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 11, 2025 14:05
Until: Dec 12, 2025 04:02
snow squall
Snow squalls expected today.
What:
Total snowfall amounts near 15 cm, particularly for areas north of Newmarket and west of Georgina.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This morning through this evening.
Additional information:
Snow squalls are expected to weaken this evening. Snowfall amounts will be highly variable across the area.
Northwesterly winds gusting to near 50 km/h will result in local blowing snow further reducing 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 11, 2025 11:58
Until: Dec 12, 2025 03:58
snow squall
Snow squalls expected today.
What:
Total snowfall amounts of 15 to 30 cm, particularly for areas north of Newmarket and west of Georgina.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This morning through this evening.
Additional information:
Snow squalls are expected to weaken this evening. Snowfall amounts will be highly variable across the area.
Northwesterly winds gusting to near 50 km/h will result in local blowing snow further reducing visibility.
###
Travel may be extremely hazardous. 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 11, 2025 08:45
Until: Dec 12, 2025 00:45
weather
Significant snowfall expected.
What:
Total snowfall amounts of up to 10 cm.
Reduced visibility in heavy snow and blowing snow.
When:
Beginning overnight and ending Wednesday morning or afternoon.
Additional Information:
Snow will continue this evening with some accumulation possible. A more significant snowfall is expected Wednesday. An Alberta clipper will bring snow across the area which may be heavy at times beginning overnight. The snow is expected to taper to rain showers or flurries from southwest to northeast Wednesday.
Travel may become difficult at times. Allow extra time for travel.
###
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 20:13
Until: Dec 10, 2025 12:13
freezing drizzle
Areas of freezing drizzle continue.
What:
Freezing drizzle leading to icy surfaces.
When:
Continuing into this evening and possibly overnight.
Additional information:
Patchy freezing drizzle has developed over some locations.
###
Icy surfaces will likely form and could be difficult to detect. There is risk of injury due to slips and falls.
Freezing drizzle advisories are issued when drizzle is expected to freeze on contact and create icy surfaces.
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 23:55
Until: Dec 10, 2025 09:59
snow squall
Snow squalls possible beginning this evening.
What:
Near zero visibility at times in heavy snow and blowing snow.
Total local snowfall amounts near 10 cm.
When:
Beginning this evening and ending Monday morning.
Additional information:
Snow squalls are expected to develop off Georgian Bay this evening as brisk northwesterly winds set up over the region. Locally heavy snow and blowing snow will be possible. The squalls should weaken early Monday morning as winds become more westerly.
###
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.
From: Nov 30, 2025 15:17
Until: Dec 01, 2025 07:17
weather
Strong winds expected today.
What:
Strong southwest winds with gusts of 60 to 70 km/h possible.
When:
Beginning later this morning and easing in the evening as winds become more northwesterly.
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.
From: Nov 30, 2025 14:32
Until: Dec 01, 2025 05:01
weather
Snow and strong winds expected today.
What:
Additional snowfall amounts of 2 to 4 cm leading to challenging travel conditions.
Strong southwest winds with gusts of 60 to 70 km/h possible.
When:
Snow will ease later this morning to scattered flurries or rain showers.
Strong winds will begin later this morning and ease in the evening as winds become more northwesterly.
Additional Information:
Snow is expected to ease to scattered flurries or transition over to rain showers later this morning. An additional 2 to 4 cm is possible.
Local utility outages are possible. 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.
From: Nov 30, 2025 10:31
Until: Dec 01, 2025 02:31
weather
Significant snow and strong winds expected Sunday.
What:
Total snowfall amounts of 5 to 10 cm leading to challenging travel conditions.
Strong southwest winds with gusts of 60 to 70 km/h possible.
When:
Snow will begin late tonight and taper off Sunday morning.
Strong winds will begin Sunday morning and ease in the evening as winds become more northwesterly.
Additional Information:
On Sunday morning, snow is expected to mix with or transition over to rain in most areas. If the precipitation remains as snow, then accumulations may exceed 10 cm.
Local utility outages are possible. 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.
From: Nov 29, 2025 22:39
Until: Nov 30, 2025 14:39
weather
Strong winds expected Sunday.
What:
Strong southwest winds with gusts of 70 to 80 km/h possible.
When:
Beginning Sunday morning and easing in the evening as winds become more northwesterly.
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.
From: Nov 29, 2025 22:35
Until: Nov 30, 2025 14:35
snow squall
Snow squalls beginning today.
What:
Total snowfall amounts of 15 to 30 cm with locally higher amounts possible.
Near zero visibility at times in heavy snow and local blowing snow.
Strong winds gusting to 70 km/h.
When:
Beginning today and possibly continuing into Saturday.
Additional information:
Lake effect snow off of Lake Huron is expected to intensify today. The lake effect bands may extend well inland, particularly today and Friday. Westerly winds gusting to 60 or 70 km/h will result in areas of near zero visibility at times in blowing snow.
###
Roads and walkways may be very 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: Nov 27, 2025 09:47
Until: Nov 28, 2025 07:07
weather
Lake effect snow possible today and tonight.
What:
Reduced visibility in snow and local blowing snow.
When:
Today and tonight.
Additional information:
Lake effect snow may affect portions of the Greater Toronto Area today and tonight. Snowfall accumulations are not expected to be significant, but visibility may be reduced in brief bursts of heavier snow and local blowing snow. Hazardous travel conditions are possible as a result.
Prepare for quickly changing and deteriorating travel conditions.
###
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: Nov 27, 2025 15:24
Until: Nov 28, 2025 07:00
snow squall
Snow squalls today and tonight.
What:
Poor visibility at times in areas of heavy snow and blowing snow.
Gusty westerly winds to 70 km/h.
Local snowfall amounts of 5 to 15 cm.
When:
Beginning today and continuing tonight.
Additional information:
Lake effect snow bands off Lake Huron are expected to develop today and may affect areas quite far inland at times.
###
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.
From: Nov 27, 2025 13:24
Until: Nov 28, 2025 05:24
weather
Lake effect snow possible today and tonight. Gusty winds diminishing.
What:
Reduced visibility in snow and local blowing snow.
Westerly winds gusting to 70 km/h diminishing this morning.
When:
Today and tonight.
Additional information:
Lake effect snow may affect portions of the Greater Toronto Area today and tonight. Snowfall accumulations are not expected to be significant, but visibility may be reduced in brief bursts of heavier snow and local blowing snow. Hazardous travel conditions are possible as a result.
Gusty westerly winds to 70 km/h will diminish somewhat this morning, but breezy conditions are expected to persist through Friday.
Prepare for quickly changing and deteriorating travel conditions.
###
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: Nov 27, 2025 09:14
Until: Nov 28, 2025 01:14
snow squall
Snow squalls possible today into Friday.
What:
Local snowfall amounts possibly exceeding 15 cm.
Poor visibility in areas of heavy snow and blowing snow.
When:
Today through Friday.
Additional information:
Bands of lake effect snow off Lake Huron and Georgian Bay may affect portions of the region from time to time through Friday.
###
Travel may be hazardous.
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: Nov 27, 2025 08:50
Until: Nov 28, 2025 00:50
snow squall
Snow squalls beginning Thursday.
What:
Total snowfall amounts of 15 to 30 cm with locally higher amounts possible.
Near zero visibility at times in heavy snow and local blowing snow.
Strong winds gusting to 70 km/h.
When:
Beginning Thursday and possibly continuing into Saturday.
Additional information:
Lake effect snow off of Lake Huron is expected to develop tonight and intensify into snow squalls on Thursday. These snow squalls may extend well inland, particularly Thursday and Friday. Westerly winds gusting to 60 or 70 km/h will result in areas of near zero visibility at times in blowing snow.
###
Roads and walkways may be very 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: Nov 27, 2025 03:19
Until: Nov 27, 2025 19:19
weather
Strong winds continue. Lake effect snow expected on Thursday.
What:
Strong winds gusting 70 to 80 km/h.
Reduced visibility in snow and local blowing snow.
When:
Strong winds ending Thursday night or Friday morning.
Lake effect snow Thursday afternoon and evening.
Additional information:
Strong southwest winds will shift to the west tonight and then to the northwest Thursday afternoon or evening. In addition, lake effect snow may move through the area Thursday afternoon and evening. Snowfall accumulations are not expected to be significant, but visibility may be reduced in snow and local blowing snow.
Local utility outages are possible. High-sided vehicles will be pushed around by the wind. Loose objects may be tossed by the wind. If visibility is reduced while driving, turn on your lights and maintain a safe following distance.
###
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: Nov 26, 2025 18:26
Until: Nov 27, 2025 13:15
snow squall
Snow squalls possible beginning Thursday.
What:
Total snowfall amounts of 15 to 30 cm with locally higher amounts possible.
Near zero visibility at times in heavy snow and local blowing snow.
When:
Beginning Thursday and possibly continuing into Saturday.
Additional information:
Lake effect snow off of Lake Huron is expected to develop tonight and intensify into snow squalls on Thursday. Strong winds are also expected and a special weather statement is in effect. These strong winds will further reduce visibility in local blowing snow.
###
Roads and walkways may be very 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: Nov 26, 2025 18:15
Until: Nov 27, 2025 12:55
snow squall
###
Roads and walkways may be very 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: Nov 26, 2025 18:15
Until: Nov 27, 2025 10:15
fog
Near zero visibility in fog is expected.
###
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.
From: Nov 26, 2025 05:05
Until: Nov 26, 2025 14:59
fog
Near zero visibility in fog is expected.
Locally dense fog has developed and will persist into early this morning before dissipating.
###
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.
From: Nov 26, 2025 09:37
Until: Nov 26, 2025 14:59
fog
Near zero visibility in fog is expected.
Locally dense fog has developed and will persist into early Wednesday morning before dissipating.
###
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.
From: Nov 26, 2025 05:05
Until: Nov 26, 2025 14:59
weather
Winter weather travel advisory in effect.
What:
Additional local snowfall accumulations of 5 cm.
When:
Today.
Additional information:
Lake effect snow off Georgian Bay has weakened considerably this morning, As a result, snow squall warnings have been downgraded to winter weather travel advisories. Conditions should continue to improve as the day progresses.
###
Travel may be hazardous due to sudden changes in the weather.
For road conditions and other traveller information from the Ministry of Transportation, visit https://www.ontario.ca/511, https://www.twitter.com/511Ontario, or call 5-1-1.
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: Nov 17, 2025 12:59
Until: Nov 17, 2025 21:01
snow squall
###
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: Nov 16, 2025 14:25
Until: Nov 17, 2025 20:59
snow squall
Snow squalls expected off Georgian Bay.
What:
5 to 10 cm of additional local snowfall today.
When:
Today.
Additional information:
Lake effect snow off Georgian Bay will continue today, though the heaviest bands may shift east of Barrie by this afternoon.
###
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: Nov 17, 2025 09:42
Until: Nov 17, 2025 20:59
snow squall
Snow squalls expected off Georgian Bay.
What:
Total snowfall accumulations of 15 to 30 cm, with the highest amounts expected in the most persistent lake effect snow bands.
When:
Tonight through Monday morning.
Additional information:
Lake effect snow off Georgian Bay will intensify tonight. Conditions are expected to improve by near noon on Monday, although flurries will likely continue into Monday afternoon.
###
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: Nov 16, 2025 20:37
Until: Nov 17, 2025 18:59
weather
Winter weather travel advisory in effect.
What:
Bursts of heavy snow resulting in reduced visibility at times.
Local snowfall accumulations near 2 cm.
When:
Early this morning.
Additional information:
These bursts of heavy lake effect snow may impact the morning commute.
###
Travel may be hazardous due to sudden changes in the weather.
For road conditions and other traveller information from the Ministry of Transportation, visit https://www.ontario.ca/511, https://www.twitter.com/511Ontario, or call 5-1-1.
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: Nov 17, 2025 09:54
Until: Nov 17, 2025 16:06
weather
Winter weather travel advisory in effect.
What:
Bursts of heavy snow resulting in reduced visibility at times.
Local snowfall accumulations of 2 to 4 cm.
When:
Late tonight through early Monday morning.
Additional information:
Lake effect snow off Georgian Bay will impact the area. The Monday morning commute may be impacted.
###
Travel may be hazardous due to sudden changes in the weather.
For road conditions and other traveller information from the Ministry of Transportation, visit https://www.ontario.ca/511, https://www.twitter.com/511Ontario, or call 5-1-1.
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: Nov 17, 2025 07:12
Until: Nov 17, 2025 16:01
weather
###
From: Nov 17, 2025 10:50
Until: Nov 17, 2025 15:25
snow squall
Snow squalls expected off Georgian Bay.
What:
Total snowfall accumulations of 15 to 30 cm, with the highest amounts expected in the most persistent lake effect snow bands.
When:
This afternoon through Monday morning.
Additional information:
Lake effect snow off Georgian Bay will intensify through the afternoon. Conditions are expected to improve by near noon on Monday, although flurries will likely continue into Monday afternoon.
###
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: Nov 16, 2025 14:25
Until: Nov 17, 2025 06:25
snow squall
Snow squalls are expected.
What:
Total snowfall accumulations of 10 to 25 cm.
Significantly reduced visibility in heavy snow.
When:
Late this afternoon through Monday morning.
Additional information:
Lake effect snow will develop off of Georgian Bay later today. A snow squall band is expected to form late in the day and last through the night.
###
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.
From: Nov 16, 2025 10:08
Until: Nov 17, 2025 02:08
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.
From: Nov 16, 2025 10:08
Until: Nov 17, 2025 02:08
snow squall
Snow squalls are expected.
What:
Total snowfall accumulations of 10 to 25 cm.
Significantly reduced visibility in heavy snow.
When:
Late Sunday through Monday morning.
Additional information:
Lake effect snow will develop off of Georgian Bay beginning Sunday. A snow squall band is expected to form late in the day and last through the night.
###
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.
From: Nov 16, 2025 02:46
Until: Nov 16, 2025 18:46
snow squall
###
From: Nov 11, 2025 09:52
Until: Nov 16, 2025 14:25
weather
Winter weather travel advisory in effect.
Hazards:
Localized snowfall accumulations of 5 to 10 cm.
Poor visibility in bursts of heavier snow.
Timing:
Tonight into Tuesday morning.
Discussion:
Cold north to northwest winds off Lake Huron and Georgian Bay will affect the area tonight into Tuesday morning. The Tuesday morning commute may be significantly impacted, particularly for areas southeast of Georgian Bay including the Highway 400 corridor.
Conditions should improve by Tuesday afternoon.
###
Motorists should expect hazardous winter driving conditions and adjust travel plans accordingly. There may be a significant impact on rush hour traffic.
For road conditions and other traveller information from the Ministry of Transportation, visit https://www.ontario.ca/511, https://www.twitter.com/511Ontario, or call 5-1-1.
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: Nov 10, 2025 23:07
Until: Nov 11, 2025 20:01
