freezing rain
Freezing rain is expected.
What:
Several hours of freezing rain.
1 to 3 mm of ice accretion or build up possible.
When:
Beginning this morning and ending this afternoon.
Additional information:
Precipitation may begin early this morning as patchy freezing drizzle before changing to freezing rain. Freezing rain, which may be mixed with snow or ice pellets at times, is expected to change over to rain as temperatures rise above the freezing mark. Areas along the Lake Ontario shoreline may see very little ice accretion or build up.
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.
###
Roads and walkways will likely become icy and slippery. Icy surfaces could be difficult to detect. Local utility outages are possible. There is risk of injury due to slips and falls.
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 06, 2026 10:18
Until: Jan 07, 2026 02:06
freezing rain
Freezing rain is expected.
What:
Icy and slippery conditions due to freezing rain.
1 to 3 mm of ice accretion or build up possible.
When:
Continuing through this afternoon.
Additional information:
Freezing rain, which may be mixed with snow or ice pellets at times, is expected to change over to rain as temperatures rise above the freezing mark. Areas along the Lake Ontario shoreline may see very little ice accretion or build up.
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.
###
Roads and walkways will likely become icy and slippery. Icy surfaces could be difficult to detect. Local utility outages are possible. There is risk of injury due to slips and falls.
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 06, 2026 15:55
Until: Jan 07, 2026 02:00
snow squall
Snow squalls ending this morning.
What:
Additional local snowfall accumulations of 2 to 4 cm.
Reduced visibility in snow and blowing snow at times.
When:
Early this morning then ending.
Additional information:
Snow squalls are forecast to weaken and move north of the area this morning.
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.
###
Visibility may be suddenly reduced to near zero at times. Roads and walkways may be very 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: Jan 01, 2026 11:24
Until: Jan 01, 2026 15:59
snow squall
###
Visibility may be suddenly reduced to near zero at times. Roads and walkways may be very 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: Jan 01, 2026 02:14
Until: Jan 01, 2026 15:59
snow squall
Snow squalls ending this morning.
What:
Reduced visibility in snow and blowing snow at times.
When:
Early this morning then ending.
Additional information:
Snow squalls are forecast to weaken and move north of the area this morning.
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.
###
Visibility may be suddenly reduced to near zero at times. Roads and walkways may be very 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: Jan 01, 2026 10:30
Until: Jan 01, 2026 15:59
snow squall
Snow squalls tonight.
What:
Near zero visibility in snow and blowing snow at times.
Snowfall amounts of 5 to 10 cm.
Snowfall rates of 5 cm per hour.
When:
Overnight.
Additional information:
Snow squalls have moved into the region and for some areas the squalls may remain through Thursday. Travel will be particularly hazardous.
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.
###
Visibility may be suddenly reduced to near zero at times. Roads and walkways may be very 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: Jan 01, 2026 02:14
Until: Jan 01, 2026 15:59
wind
Strong winds expected today.
What:
Strong southwesterly and northwesterly wind gusts of 80 to 90 km/h.
When:
Today. Easing tonight.
Additional information.
Strong southwesterly winds will become northwesterly through the afternoon. Wind gusts up to 70 km/h may still be possible tonight after winds switch northwesterly.
###
Local utility outages are possible. Damage to roofs, fences, branches or soft shelters is possible. Some property 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 29, 2025 17:58
Until: Dec 30, 2025 08:01
snow squall
Brief, intense snowfall and blowing snow expected late this morning into this afternoon.
What:
Near zero visibility in heavy snow and blowing snow.
Snowfall amounts up to 5 cm within one hour.
When:
Late this morning into early this afternoon.
Additional information:
A sharp cold front is expected to track over the area. Along this cold front a sudden intense snowfall is expected. A quick 5 cm of snow is possible from this snow squall as well as a rapid temperature drop, leading to icy surfaces. Poor visibility in blowing snow is likely as strong northwesterly wind gusts are expected.
###
Travel will likely 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.
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 29, 2025 14:08
Until: Dec 30, 2025 06:08
snow squall
Brief, intense snowfall and blowing snow expected.
What:
Near zero visibility in heavy snow and blowing snow.
Snowfall amounts up to 5 cm within one hour.
When:
Late this morning or this afternoon.
Additional information:
A sharp cold front is expected to track over the area. Along this cold front a sudden intense snowfall is expected. A quick 5 cm of snow is possible from this snow squall as well as a rapid temperature drop, leading to icy surfaces. Poor visibility in blowing snow is likely as strong northwesterly wind gusts are expected.
###
Travel will likely 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.
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 29, 2025 15:28
Until: Dec 30, 2025 06:02
snow squall
###
Travel will likely 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.
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 29, 2025 16:16
Until: Dec 30, 2025 05:59
snow squall
Brief, intense snowfall and blowing snow expected.
What:
Near zero visibility in heavy snow and blowing snow.
Snowfall amounts up to 5 cm within one hour.
When:
This afternoon.
Additional information:
A sharp cold front is expected to track over the area. Along this cold front a sudden intense snowfall is expected. A quick 5 cm of snow is possible from this snow squall as well as a rapid temperature drop, leading to icy surfaces. Poor visibility in blowing snow is likely as strong northwesterly wind gusts are expected.
###
Travel will likely 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.
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 29, 2025 17:26
Until: Dec 30, 2025 05:59
snow squall
Brief, intense snowfall and blowing snow expected.
What:
Near zero visibility in heavy snow and blowing snow.
Snowfall amounts up to 5 cm within one hour.
When:
This afternoon.
Additional information:
A sharp cold front is expected to track over the area. Along this cold front a sudden intense snowfall is expected. Poor visibility in blowing snow is likely as strong northwesterly wind gusts are expected.
###
Travel will likely 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.
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 29, 2025 19:39
Until: Dec 30, 2025 05:59
wind
Strong winds expected today.
What:
Strong southwesterly and northwesterly wind gusts of 80 to 90 km/h.
When:
Beginning this morning and easing this evening.
Additional information.
Strong southwesterly winds are expected to develop this morning
with the passage of a strong cold front. The winds will become northwesterly through the afternoon. The winds will ease this evening.
###
Local utility outages are possible. Damage to roofs, fences, branches or soft shelters is possible. Some property 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 29, 2025 10:32
Until: Dec 30, 2025 02:32
snow squall
Brief, intense snowfall and blowing snow expected late this morning into this afternoon.
What:
Near zero visibility in heavy snow and blowing snow.
Snowfall amounts up to 5 cm within one hour.
When:
Late this morning into early this afternoon.
Additional information:
A sharp cold front is expected to track over the area. Along this cold front a sudden intense snowfall is expected. A quick 5 cm of snow is possible from this snow squall as well as a rapid temperature drop, leading to icy surfaces. Poor visibility in blowing snow is likely as strong northwesterly wind gusts are expected.
###
Travel may be extremely hazardous. 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 29, 2025 09:47
Until: Dec 30, 2025 00:12
freezing rain
Freezing rain expected today.
What:
Freezing Rain.
Ice accretion of 2 to 5 mm.
When:
Through early this afternoon and ending 3 to 4 pm.
Additional information:
Ice accretion of 2 to 5 mm is likely before precipitation changes over to rain this afternoon, as temperatures rise above the freezing mark.
###
Icy surfaces could be difficult to detect. Local utility outages are possible. There is risk of injury due to slips and falls.
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 19:39
Until: Dec 26, 2025 23:08
freezing rain
Freezing rain expected today.
What:
Freezing Rain.
Ice accretion of 2 to 5 mm.
When:
Through early this afternoon.
Additional information:
Ice accretion of 2 to 5 mm is likely before precipitation changes over to rain this afternoon, as temperatures rise above the freezing mark.
###
Icy surfaces could be difficult to detect. Local utility outages are possible. There is risk of injury due to slips and falls.
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 17:01
Until: Dec 26, 2025 22:02
freezing rain
Freezing rain is expected.
###
Icy surfaces could be difficult to detect. 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 26, 2025 03:13
Until: Dec 26, 2025 21:59
freezing rain
Freezing rain is expected.
Freezing rain expected today.
What:
Freezing Rain.
Ice accretion of 2 to 5 mm.
When:
This morning into this afternoon.
Additional information:
Ice accretion of 2 to 5 mm is likely before precipitation changes over to rain this afternoon, as temperatures rise above the freezing mark.
###
Icy surfaces could be difficult to detect. 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 26, 2025 09:21
Until: Dec 26, 2025 21:59
freezing rain
Freezing rain is expected.
Freezing rain expected Friday.
What:
Freezing Rain.
Ice accretion of 2 to 5 mm.
When:
Friday morning into Friday afternoon.
Additional information:
Freezing rain is expected to begin Friday morning and continue into the afternoon. Ice accretion of 2 to 5 mm is likely before precipitation changes over to rain Friday afternoon, as temperatures rise above the freezing mark.
###
Icy surfaces could be difficult to detect. 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 26, 2025 03:13
Until: Dec 26, 2025 19:13
freezing rain
Freezing rain is expected.
Freezing rain expected Friday.
What:
Freezing Rain.
Ice accretion of 2 to 5 mm.
When:
Friday morning into Friday afternoon.
Additional information:
Freezing rain is expected to begin Friday morning and continue into the afternoon. Ice accretion of 2 to 5 mm is likely before precipitation changes over to rain Friday afternoon, as temperatures rise above the freezing mark.
Roads and walkways will likely become icy and slippery. Motorists should expect difficult winter driving conditions and adjust plans accordingly.
###
Icy surfaces could be difficult to detect. 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 25, 2025 15:53
Until: Dec 26, 2025 07:53
weather
Freezing rain likely Friday.
What:
Freezing Rain.
Ice accretion of 2 to 5 mm.
When:
Friday morning into Friday afternoon.
Additional information:
Freezing rain is expected to begin Friday morning and continue into the afternoon. Ice accretion of 2 to 5 mm is likely before precipitation changes over to rain Friday afternoon, as temperatures rise above the freezing mark.
Roads and walkways will likely become icy and slippery. Motorists should expect difficult winter driving conditions and adjust 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 25, 2025 09:45
Until: Dec 26, 2025 01:54
weather
Significant freezing rain likely Friday.
What:
Freezing Rain.
Ice accretion of 5 to 10 mm.
When:
Friday morning into Friday afternoon.
Additional information:
Freezing rain is expected to begin Friday morning and continue into the afternoon. Ice accretion of 5 to 10 mm is likely. Freezing rain will change over to rain Friday afternoon over Sarnia and Chatham areas as temperatures rise above to the freezing mark and to light snow Friday evening over the London area.
Roads and walkways will likely become icy and slippery. Motorists should expect difficult winter driving conditions 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 25, 2025 03:54
Until: Dec 25, 2025 19:54
snow squall
Intense snow squalls expected Sunday.
What:
Total snowfall accumulations of 20 to 40 cm. Locally higher amounts possible.
Near zero visibility in areas of heavy snow and blowing snow.
Peak snowfall rates of 2 to 5 cm per hour.
When:
Beginning early Sunday morning and ending Sunday afternoon or evening.
Additional information:
As winds become northerly early Sunday morning, a particularly strong snow squall is expected to develop off Lake Huron. The heaviest snowfall is expected west of London. However, snow squalls may move into western portions of the city at times.
Conditions should improve over all areas Sunday evening.
###
Travel may be hazardous. 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 13, 2025 20:22
Until: Dec 14, 2025 12:22
snow squall
Intense snow squalls expected Sunday.
What:
Total snowfall accumulations of 20 to 40 cm. Locally higher amounts possible.
Near zero visibility in areas of heavy snow and blowing snow.
Peak snowfall rates of 2 to 5 cm per hour.
When:
Beginning early Sunday morning and ending Sunday afternoon or evening.
Additional information:
As winds become northerly early Sunday, a particularly strong snow squall is expected to develop off Lake Huron. The heaviest snowfall is expected west of London. However, snow squalls may move into western portions of the city at times.
Conditions should improve over all areas Sunday evening.
###
Travel may be hazardous. 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 13, 2025 14:48
Until: Dec 14, 2025 06:48
snow squall
Snow squalls are expected to develop. Under the snow squall bands, visibility will be significantly reduced due to the heavy snow combined with blowing snow, and snow will quickly accumulate.
Snow squalls expected Sunday.
What:
Snowfall accumulations of 20 to 40 cm. Locally higher amounts possible.
Poor visibility in areas of heavy snow and blowing snow.
When:
Beginning late tonight and continuing through Sunday.
Additional information:
As winds become northerly early Sunday a particularly strong snow squall is forecast to impact areas just west to northwest of London. This intense snow squall may also impact western portions of the city of London as well.
Conditions should improve over all areas Sunday night.
###
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 13, 2025 10:42
Until: Dec 14, 2025 02:42
weather
Snow squalls ending late this evening.
What:
Local snowfall amounts up to 15 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Continuing until late this evening.
Additional information:
Snow squalls off Lake Huron will continue to affect portions of eastern Lambton and western Middlesex counties. Westerly to northwesterly winds gusting to near 50 km/h may result in local blowing snow further reducing visibility.
Note that stronger snow squalls are expected for regions farther north and east. Snow squall warnings are in effect for those regions.
Conditions should improve by late this evening.
###
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 21:53
Until: Dec 12, 2025 07:08
weather
Lake effect snow ending late this evening.
What:
Additional snowfall amounts up to 5 cm.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Continuing until late this evening.
Additional information:
Lake effect snow off Lake Huron will affect portions of eastern Lambton and western Middlesex counties at times this evening. Westerly to northwesterly winds gusting to near 50 km/h may result in local blowing snow further reducing visibility.
Conditions will improve late this evening.
###
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 02:44
Until: Dec 12, 2025 07:04
weather
Snow squalls today.
What:
Local snowfall amounts of 10 to 15 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Continuing into this evening.
Additional information:
Snow squalls off Lake Huron will affect portions of eastern Lambton and western Middlesex counties today. Westerly to northwesterly winds gusting to near 50 km/h may result in local blowing snow further reducing visibility.
Note that stronger snow squalls are expected for regions farther north and east. Snow squall warnings are in effect for those regions.
Conditions should improve by later this evening.
###
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 16:15
Until: Dec 12, 2025 05:16
weather
###
From: Dec 12, 2025 04:05
Until: Dec 12, 2025 05:05
snow squall
Snow squalls possible today.
What:
Local snowfall amounts of 15 to 20 cm possible.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
This morning through this evening.
Additional information:
Snow squalls may affect the area at times today before weakening this evening. Snowfall amounts will be highly variable across the area.
Westerly to northwesterly winds gusting to near 50 km/h may result in local blowing snow further reducing visibility.
###
Travel may be 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 10:42
Until: Dec 12, 2025 02:42
weather
Brief heavy snow late this morning into early this afternoon.
What:
Snowfall rates of 2 to 4 cm per hour.
Reduced visibility in heavy snow.
When:
Late this morning into early this afternoon.
Additional information:
Snow is tracking over the area. Heavy snow is expected for an hour or two before tapering to scattered flurries.
Travel conditions may become difficult. Visibility may be reduced to near zero at times. Consider postponing non-essential travel and outdoor activities until conditions improve.
###
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 15:43
Until: Dec 09, 2025 21:03
weather
Brief heavy snow this morning.
What:
Snowfall rates of 2 to 4 cm per hour.
Reduced visibility in heavy snow.
When:
This morning.
Additional information:
Snow is tracking towards the area from Michigan. Heavy snow is expected for an hour or two before tapering to scattered flurries.
Travel conditions may become difficult. Visibility may be reduced to near zero at times. Consider postponing non-essential travel and outdoor activities until conditions improve.
###
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 14:05
Until: Dec 09, 2025 20:03
snow squall
Lake effect snow squalls off Lake Huron this evening into Thursday.
What:
Total local snowfall amounts of 15 to 30 cm.
Significantly reduced visibility in heavy snow and local blowing snow.
When:
Tonight through Thursday afternoon.
Additional information:
Lake effect snow will be accompanied by northwesterly winds gusting 50 to 60 km/h. As a result, blowing snow will further reduce visibility. Conditions are expected to improve by Thursday evening. 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 extremely hazardous. Visibility may be suddenly reduced to near zero at times. Roads and walkways may be very 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 03, 2025 20:54
Until: Dec 04, 2025 12:54
snowfall
A long period of snowfall with total amounts of 10 to 15 cm is expected.
Heavy snow is expected.
What:
Total snowfall amounts of 10 to 15 cm.
When:
Beginning late this evening and continuing through Sunday.
Additional information:
The snow will transition to lake effect flurries late Sunday into Sunday night with the potential for snow squalls. This may lead to additional significant snowfall Sunday night.
###
Travel will likely be challenging. Roads and walkways will likely be difficult to navigate due to accumulating snow. 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.
From: Nov 29, 2025 17:27
Until: Nov 30, 2025 15:43
weather
Heavy snow is expected.
What:
Total snowfall amounts near 10 cm possibly reaching 15 cm leading to hazardous travel conditions.
When:
Beginning tonight and tapering off Sunday afternoon.
Additional information:
Overnight into early Sunday morning, the snow is expected to mix with or transition over to rain. There is still a higher degree of uncertainty as to whether or not the snow will transition to rain. If the precipitation remains as snow, then accumulations may be near the 15 cm mark.
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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: Nov 29, 2025 17:46
Until: Nov 30, 2025 14:05
snow squall
Snow squalls possible tonight and Friday.
What:
Local snowfall amounts possibly exceeding 15 cm.
Poor visibility in areas of heavy snow and blowing snow.
When:
Tonight into Friday night.
Additional information:
Intense snow squall activity is expected to affect areas east of Lake Huron, but may also affect portions of Middlesex and Lambton counties. Gusty winds to 60 km/h would also result in poor visibility in areas of blowing snow.
Travel may be hazardous.
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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: Nov 27, 2025 21:32
Until: Nov 28, 2025 13:32
snow squall
Snow squalls tonight through Friday.
What:
Total snowfall amounts of 20 to 40 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:
Continuing through Friday.
Additional information:
Lake effect snow off Lake Huron will continue to intensify tonight. The lake effect bands may extend well inland. Westerly winds gusting to 60 or 70 km/h will result in areas of near zero visibility at times in blowing snow.
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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: Nov 27, 2025 19:33
Until: Nov 28, 2025 11:33
weather
Strong winds continue.
What:
Strong winds gusting 70 to 80 km/h.
When:
Continuing through Thursday night or Friday morning.
Additional information:
Strong southwest winds will shift to the west tonight and then to the northwest Thursday afternoon or evening. Local utility outages are possible. High-sided vehicles will be pushed around by the wind. Loose objects may be tossed by the wind.
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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: Nov 26, 2025 18:33
Until: Nov 27, 2025 13:21
weather
Strong winds continue.
What:
Strong southwest winds gusting 80 to 90 km/h.
When:
Continuing through Thursday morning.
Additional information:
Local utility outages are possible. High-sided vehicles will be pushed around by the wind. Loose objects may be tossed by the wind.
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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: Nov 26, 2025 21:11
Until: Nov 27, 2025 13:11
weather
Strong winds continue.
What:
Strong southwest winds gusting 80 to 90 km/h.
When:
Ending Thursday.
Additional information:
Local utility outages are possible. High-sided vehicles will be pushed around by the wind. Loose objects may be tossed by the wind.
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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: Nov 26, 2025 17:13
Until: Nov 27, 2025 10:21
weather
Strong winds expected.
What:
Strong southwest winds gusting 80 to 90 km/h.
When:
Beginning this morning and ending Thursday.
Additional information:
Local utility outages are possible. High-sided vehicles will be pushed around by the wind. Loose objects may be tossed by the wind.
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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: Nov 26, 2025 09:56
Until: Nov 27, 2025 01:56
weather
Strong winds expected.
What:
Strong winds gusting 70 to 80 km/h.
When:
Beginning today and ending Thursday night or Friday morning.
Additional information:
Strong southwest winds will shift to the west tonight and then to the northwest Thursday afternoon or evening. Local utility outages are possible. High-sided vehicles will be pushed around by the wind. Loose objects may be tossed by the wind.
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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: Nov 26, 2025 09:52
Until: Nov 27, 2025 01:52
