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 18:59
snow squall
Snow squalls expected off Lake Huron.
What:
Total snowfall accumulations of 20 to 40 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 Lake Huron will intensify tonight and a prominent snow squall is expected to form. The exact positioning of this snow squall remains somewhat uncertain, and therefore the location of the greatest snowfall totals. 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 20:36
Until: Nov 17, 2025 18:59
weather
Winter weather travel advisory in effect for early tonight.
What:
Bursts of heavy snow reducing visibility at times.
Local snowfall accumulations of 2 to 4 cm.
When:
Early tonight.
Additional information:
While overall snowfall amounts are not forecast to be high, significantly reduced visibility at times can be expected. Motorists are advised to exercise caution.
###
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 04:03
Until: Nov 17, 2025 11:06
weather
###
From: Nov 06, 2025 03:25
Until: Nov 17, 2025 09:07
snow squall
Snow squalls expected off Lake Huron.
What:
Total snowfall accumulations of 20 to 40 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 Lake Huron will intensify through the afternoon. A prominent snow squall is expected to form late today through tonight. The exact positioning of this snow squall remains somewhat uncertain, and therefore the location of the greatest snowfall totals. 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
###
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 10:04
Until: Nov 17, 2025 02:04
snow squall
Snow squalls are expected.
What:
Total snowfall accumulations of 20 to 40 cm, with the highest amounts expected if a snow squall locks into place over a particular region.
Significantly reduced visibility in heavy snow.
When:
Late this afternoon through Monday morning.
Additional information:
Lake effect snow will develop off of Lake Huron beginning late this afternoon. A snow squall band is expected to form late in the day and last through the night. The exact positioning of this snow squall band is uncertain at this time and therefore the location of the greatest snowfall totals.
###
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 10:04
Until: Nov 17, 2025 02:04
snow squall
Snow squalls are expected.
What:
Total snowfall accumulations of 20 to 40 cm, with the highest amounts expected if a snow squall locks into place over a particular region.
Significantly reduced visibility in heavy snow.
When:
Late Sunday through Monday morning.
Additional information:
Lake effect snow will develop off of Lake Huron beginning Sunday. A snow squall band is expected to form late in the day and last through the night. The exact positioning of this snow squall band is uncertain at this time and therefore the location of the greatest snowfall totals.
###
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 02:45
Until: Nov 16, 2025 18:45
snow squall
Hazardous snow squalls this morning.
What:
Additional snowfall amounts of 10 to 20 cm.
Peak snowfall rates of 5 to 10 cm per hour.
Very poor visibility in heavy snow and blowing snow.
When:
Continuing this morning.
Additional Information:
An intense band of lake effect snow continues to affect areas south and southeast of Lake Huron this morning.
Snowfall rates of 5 to 10 cm per hour along with occasional lightning and thunder are occurring under this band.
Conditions should improve later this morning.
###
Travel will likely be extremely hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely 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.
From: Nov 11, 2025 12:49
Until: Nov 11, 2025 19:59
snow squall
###
Travel will likely be extremely hazardous. Visibility will likely be suddenly reduced to near zero at times. Roads and walkways will likely 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.
From: Nov 11, 2025 12:49
Until: Nov 11, 2025 19:59
snow squall
Snow squalls possible tonight into Tuesday morning.
What:
Local snowfall accumulations up to 15 cm.
When:
Tonight into Tuesday morning.
Additional information:
Lake effect snow is affecting areas closer to Lake Huron this morning, but is expected to intensify later today or tonight. There is the potential for a significant lake effect band to extend into Elgin County tonight into Tuesday morning.
Lake effect snow is expected to taper in intensity by Tuesday afternoon.
###
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 10, 2025 16:03
Until: Nov 11, 2025 08:03
weather
Accumulating snow likely today.
What:
Snowfall amounts of 5 to 10 cm.
When:
This morning through this evening.
Additional information:
There remains uncertainty with respect to the track of this weather system, and as such the areas affected and snowfall amounts may change. For areas roughly from Stratford to Orillia and northwest, confidence is lower as the higher snowfall amounts may remain to the southeast.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
###
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 09, 2025 07:04
Until: Nov 09, 2025 23:04
weather
Accumulating snow likely today.
What:
Snowfall amounts of 5 to 10 cm. Amounts may be lesser near the shores of Lake Erie and Lake Ontario.
When:
This morning through this evening.
Additional information:
Precipitation may begin as rain before changing to snow for areas adjacent to Lake Erie and Lake Ontario. For these areas, snowfall amounts may be lesser.
There remains uncertainty with respect to the track of this weather system, and as such forecast snowfall amounts may change.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
###
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 09, 2025 06:51
Until: Nov 09, 2025 22:51
weather
Accumulating snow likely on Sunday.
What:
Snowfall amounts of 2 to 10 cm.
When:
Beginning Sunday morning and continuing through Sunday evening.
Additional information:
A low pressure system will bring snowfall to parts of southern Ontario on Sunday. Precipitation may begin as rain before changing to snow for areas adjacent to Lake Erie and Lake Ontario. For these areas, snowfall amounts may fall within the lower end of the forecast range.
Confidence remains low with respect to the strength and track of this weather system, and as such the areas affected and snowfall amounts may change.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
###
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 09, 2025 03:32
Until: Nov 09, 2025 19:32
weather
Accumulating snow likely on Sunday.
What:
Snowfall amounts of 2 to 10 cm.
When:
Beginning Sunday morning and continuing through Sunday evening.
Additional information:
A low pressure system will bring snowfall to parts of southern Ontario on Sunday.
Confidence remains low with respect to the strength and track of this weather system, and as such the areas affected and snowfall amounts may continue to change.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
###
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 08, 2025 21:04
Until: Nov 09, 2025 13:04
weather
Accumulating snow likely on Sunday.
What:
Snowfall amounts of 2 to 10 cm.
When:
Beginning Sunday morning and continuing through Sunday evening.
Additional information:
A low pressure system could bring significant snowfall to parts of southern Ontario on Sunday. Confidence remains low with respect to the strength and track of this weather system, and as such the areas affected and snowfall amounts may change.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
Installation of winter tires should be considered prior to Sunday.
###
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 08, 2025 02:20
Until: Nov 08, 2025 18:20
weather
Accumulating snow likely on Sunday.
What:
Snowfall amounts of 2 to 10 cm.
When:
Beginning Sunday morning and continuing through Sunday evening.
Additional information:
A low pressure system could bring significant snowfall to parts of southern Ontario on Sunday. Confidence remains low with respect to the strength and track of this weather system, and as such the areas affected and snowfall amounts may change.
Motorists should expect difficult winter driving conditions and adjust travel plans accordingly. Poor weather conditions may contribute to transportation delays.
Installation of winter tires should be considered prior to Sunday.
###
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 07, 2025 19:15
Until: Nov 08, 2025 11:15
frost
Frost may damage some crops in frost-prone areas.
###
Frost advisories are issued when temperatures are expected to reach the freezing mark during the growing season, leading to potential damage and destruction to plants and crops.
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 10, 2025 05:32
Until: Oct 10, 2025 14:59
frost
Frost may damage some crops in frost-prone areas.
Temperatures are expected to drop to near zero degrees Celsius early this morning.
###
Frost advisories are issued when temperatures are expected to reach the freezing mark during the growing season, leading to potential damage and destruction to plants and crops.
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 10, 2025 05:32
Until: Oct 10, 2025 14:59
frost
Frost may damage some crops in frost-prone areas.
Temperatures in some areas will drop to near zero degrees Celsius early this morning.
###
Frost advisories are issued when temperatures are expected to reach the freezing mark during the growing season, leading to potential damage and destruction to plants and crops.
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 10, 2025 09:06
Until: Oct 10, 2025 14:59
frost
Widespread frost is no longer expected.
Temperatures have risen well above freezing this morning.
###
From: Oct 10, 2025 13:16
Until: Oct 10, 2025 14:16
thunderstorm
At 3:19 p.m. EDT, Environment Canada meteorologists are tracking a cluster of severe thunderstorms capable of producing heavy rain.
This cluster of severe thunderstorms is located from Woodstock to Embro, moving north at 10 km/h.
Hazard:
Heavy rain with total amounts of 50 to 75 mm.
Locations impacted include:
Brooksdale, Embro and Hickson.
###
Heavy rain may cause flash flooding and significant reductions to visibility.
Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.
From: Sep 24, 2025 19:20
Until: Sep 24, 2025 22:18
