snow squall
Snow squalls continuing tonight.
What:
Local snowfall accumulations of 15 to 30 cm.
When:
Ending overnight.
Additional information:
Lake effect snow bands off Lake Huron are extending towards Elgin County and areas to the east and northeast of Chatham. Travel along portions of Highway 401 may be affected. The activity is expected to shift east of the area later tonight
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Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 11, 2025 00:20
Until: Nov 11, 2025 10:01
weather
Winter weather travel advisory in effect.
Hazards:
Localized snowfall accumulations of 5 to 10 cm.
Poor visibility in bursts of heavier snow.
Timing:
This evening.
Discussion:
An intense band of lake effect snow off Lake Huron will affect areas to the north and east of Chatham. The band is expected to shift east of the region later tonight.
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Motorists should expect hazardous winter driving conditions and adjust travel plans accordingly.
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 23:36
Until: Nov 11, 2025 08:04
snow squall
Snow squalls through Tuesday morning.
What:
Localized snowfall amounts of 10 to 20 cm east of Sarnia.
Locally reduced visibility in blowing snow.
When:
Continuing today and diminishing Tuesday morning.
Additional Information:
Lake effect snow off Lake Huron will affect portions of western Lambton County, especially areas east of Sarnia and near Lake Huron. Conditions should improve Tuesday morning.
Note that significantly more intense lake effect snow is expected farther to the east over eastern Lambton, Huron and Middlesex counties, particularly tonight.
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Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 10, 2025 15:44
Until: Nov 11, 2025 07:44
snow squall
Snow squalls continuing into this evening.
What:
Localized snowfall amounts of 15 to 30 cm east of Sarnia.
Locally reduced visibility in blowing snow.
When:
Ending later this evening.
Additional Information:
Lake effect snow off Lake Huron will affect portions of western Lambton County, especially areas east of Sarnia and near Lake Huron. The lake effect bands should shift east of western Lambton County later this evening.
###
Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times.
Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.
From: Nov 10, 2025 21:14
Until: Nov 11, 2025 07:01
frost
Frost may damage some crops in frost-prone areas.
Temperatures are expected to fall to near the freezing mark again tonight into early Monday morning.
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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: Oct 26, 2025 19:28
Until: Oct 27, 2025 16:00
frost
Frost may damage some crops in frost-prone areas.
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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: Oct 26, 2025 05:47
Until: Oct 27, 2025 11:28
frost
Frost may damage some crops in frost-prone areas.
Temperatures are expected to remain near the freezing mark early this morning.
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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: Oct 26, 2025 08:24
Until: Oct 26, 2025 15:30
frost
Frost may damage some crops in frost-prone areas.
Temperatures are expected to fall to the freezing mark overnight into early Sunday morning.
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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: Oct 26, 2025 05:47
Until: Oct 26, 2025 13:59
frost
Patchy frost early this morning.
Minimum temperatures early this morning are expected to be near the freezing mark, especially for low-lying and rural areas.
Some plants that remain outside may be damaged by frost.
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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: Oct 25, 2025 04:49
Until: Oct 25, 2025 13:59
frost
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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: Oct 25, 2025 04:49
Until: Oct 25, 2025 13:59
frost
Patchy frost is expected early Saturday morning.
Minimum temperatures early Saturday morning are expected to be near the freezing mark, especially for low-lying and rural areas.
Some plants that remain outside may be damaged by frost.
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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: Oct 24, 2025 17:32
Until: Oct 25, 2025 09:32
Frost Advisory
* WHAT...Temperatures as low as 33 will result in frost formation.
* WHERE...A portion of southeast Michigan.
* WHEN...From midnight tonight to 9 AM EDT Thursday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Oct 08, 2025 15:12
Until: Oct 09, 2025 13:00
