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 or early this evening.
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 21:57
Until: Dec 30, 2025 05:59
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 21:57
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 20:03
Until: Dec 30, 2025 05:59
rainfall
Rain, heavy at times continues. The frozen ground has a reduced ability to absorb this rainfall.
What:
Total rain and freezing rain amounts 30 to 60 mm with locally higher amounts possible.
When:
Ending overnight.
Additional information:
Rain, heavy at times, will continue tonight. There will be the risk for a few isolated thunderstorms as well. The rain will ease overnight.
If possible, clear storm drains of snow and ice.
###
Localized flooding is possible. Some roads may become impassable.
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 04:11
Until: Dec 29, 2025 12:01
High Wind Warning
* WHAT...West winds 25 to 35 mph with frequent gusts of 50 to 60 mph
expected.
* WHERE...All of southeast Michigan.
* WHEN...Until 9 PM EST Monday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Power outages are expected. Travel will be difficult, especially
for high profile vehicles.
* ADDITIONAL DETAILS...Reports indicate a considerable amount of ice
still on trees and power lines in the Tri Cities and northern
Thumb region making wind damage and power outages that much more
likely. There is less ice farther south and no ice in the Detroit
metro area, however cases of ice weakened tree branches also raise
the potential for wind damage and power outages.
From: Dec 29, 2025 02:53
Until: Dec 29, 2025 11:00
fog
Near zero visibility in fog continues.
###
Travel will likely be hazardous in some locations. 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.
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 23:58
Until: Dec 29, 2025 09:40
fog
Near zero visibility in fog continues.
When:
This evening with visibility expected to improve overnight.
###
Travel will likely be hazardous in some locations. 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.
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 22:19
Until: Dec 29, 2025 09:40
High Wind Warning
* WHAT...West winds 25 to 35 mph with occasional gusts of 50 to 60
mph expected.
* WHERE...All of southeast Michigan.
* WHEN...From midnight tonight to 9 PM EST Monday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Power outages are expected. Travel will be difficult, especially
for high profile vehicles.
From: Dec 28, 2025 19:00
Until: Dec 29, 2025 09:00
wind
Strong winds expected on Monday.
What:
Strong southwesterly wind gusts of 80 to 90 km/h.
When:
Beginning Monday morning and easing Monday evening.
Additional information.
Strong southwesterly winds are expected to develop Monday morning with the passage of a strong cold front. The winds will ease through Monday evening as they shift around to the northwest, but gusts of 60 km/h to 70 km/h are still likely.
###
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 28, 2025 09:24
Until: Dec 29, 2025 01:24
High Wind Watch
* WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible.
* WHERE...All of southeast Michigan.
* WHEN...From late tonight through Monday evening.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles.
* ADDITIONAL DETAILS...Snow and blowing snow are expected which will
reduce visibilities and could make travel hazardous.
From: Dec 28, 2025 08:25
Until: Dec 28, 2025 21:30
Special Weather Statement
A region of showers will track across the area during the pre dawn
hours. With temperatures at or slightly below freezing, ice has
developed on many untreated roads. Drivers should use extreme
caution early this morning. Temperatures will rise above freezing
between 7 AM and 9 AM.
From: Dec 28, 2025 11:18
Until: Dec 28, 2025 13:30
High Wind Watch
* WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible.
* WHERE...All of southeast Michigan.
* WHEN...From late Sunday night through Monday evening.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles.
* ADDITIONAL DETAILS...Snow and blowing snow are possible which
should reduce visibilities and could make travel hazardous.
From: Dec 27, 2025 20:01
Until: Dec 28, 2025 10:00
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.
###
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
Winter Weather Advisory
* WHAT...Freezing rain expected. Total ice accumulations will range
between a light glaze to just below a quarter inch.
* WHERE...A portion of southeast Michigan.
* WHEN...Until 4 PM EST this afternoon.
* IMPACTS...Plan on icy roads and surface conditions. The hazardous
conditions will impact travel into the afternoon.
* ADDITIONAL DETAILS...Widespread freezing rain will persist into
the early afternoon, before gradually tapering off. In addition
to freezing rain, some mixing of sleet remains possible across the
northern Tri-Cities and northern Thumb, with sleet accumulation
potential to a half-inch or less.
From: Dec 26, 2025 14:59
Until: Dec 26, 2025 21:00
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
Winter Weather Advisory
* WHAT...Freezing rain expected. Total ice accumulations will range
between one tenth of an inch to just below a quarter inch.
* WHERE...A portion of southeast Michigan.
* WHEN...Until 4 PM EST this afternoon.
* IMPACTS...Plan on icy roads and surface conditions. The hazardous
conditions will impact the morning commute and holiday travel.
* ADDITIONAL DETAILS...The higher end ice accumulation potential to
or above two-tenths of an inch will be favored around the M-59
corridor through the I-69 corridor, and north through Saginaw,
Tuscola, and Sanilac Counties. In addition to freezing rain, some
mixing of sleet remains possible across the northern Tri-Cities
and northern Thumb, with sleet accumulation potential to a
half-inch or less. Locations towards Metro Detroit and the Ohio
border have the best chance of temperatures rising above freezing
by the afternoon.
From: Dec 26, 2025 09:14
Until: Dec 26, 2025 17:15
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 24, 2025 20:29
Until: Dec 25, 2025 12:29
snow squall
Snow squalls possible this afternoon and evening.
What:
Local snowfall accumulations of 5 to 10 cm with higher amounts possible.
Near zero visibility in heavy snow and blowing snow.
When:
This afternoon and evening.
Additional information:
An intense snow squall band off Lake Huron may move into areas east of Sarnia this afternoon. Snow squalls will weaken this evening.
###
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 14, 2025 18:59
Until: Dec 15, 2025 04:00
weather
Snow continues this morning.
What:
Snow or a rain snow mix will continue this morning. Additional local accumulations up to 2 cm is possible.
When:
Continuing this morning and ending near midday.
Additional information:
The snow is expected to mix with rain this morning before easing to scattered flurries near midday. Up to an additional 2 cm of accumulation is possible locally.
###
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 10:32
Until: Nov 30, 2025 18:18
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations between 4 and 6
inches. Localized snow accumulations up to 7 inches possible.
* WHERE...A portion of southeast Michigan.
* WHEN...From 3 PM Saturday to 10 AM EST Sunday.
* IMPACTS...Travel could be very difficult.
* ADDITIONAL DETAILS...Light snowfall will begin to spread eastward
across Southeast Michigan between 2 PM and 5 PM Saturday
afternoon. Peak snowfall rates up to three quarters of an inch per
hour are possible between 7 PM Saturday and 1 AM Sunday.
From: Nov 29, 2025 03:54
Until: Nov 30, 2025 15:00
Winter Storm Warning
* WHAT...Heavy snow expected. Total snow accumulations between 5 and
8 inches.
* WHERE...Western portions of Southeast Michigan from the Tri-Cities
directly south to Monroe County.
* WHEN...From 3 PM Saturday to 10 AM EST Sunday.
* IMPACTS...Travel could be very difficult.
* ADDITIONAL DETAILS...Light snowfall will begin to spread eastward
across Southeast Michigan between 1 PM and 4 PM Saturday
afternoon. Peak snowfall rates up to an inch per hour are possible
between 6 PM and Midnight Saturday evening.
From: Nov 29, 2025 03:54
Until: Nov 29, 2025 15:30
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations between 5 and 7
inches.
* WHERE...A portion of southeast Michigan.
* WHEN...From 3 PM Saturday to 10 AM EST Sunday.
* IMPACTS...Travel could be very difficult.
* ADDITIONAL DETAILS...Lighter snowfall will spread across southeast
Michigan between 1 PM and 4 PM Saturday afternoon. Higher snowfall
rates up to inch per hour or greater will be focused between 6 PM
to Midnight.
From: Nov 28, 2025 20:12
Until: Nov 29, 2025 10:00
Winter Storm Warning
* WHAT...Heavy snow expected. Total snow accumulations between 5 and
8 inches.
* WHERE...Western portions of southeast Michigan from the Tri-Cities
directly south to Monroe County.
* WHEN...From 3 PM Saturday to 10 AM EST Sunday.
* IMPACTS...Travel could be very difficult.
* ADDITIONAL DETAILS...Lighter snowfall will spread across southeast
Michigan between 1 PM and 4 PM Saturday afternoon. Higher snowfall
rates up to inch per hour or greater will be focused between 6 PM
to Midnight.
From: Nov 28, 2025 20:12
Until: Nov 29, 2025 10:00
weather
Strong winds expected.
What:
Strong southwest winds gusting 80 to 90 km/h.
When:
Beginning Wednesday 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.
###
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 25, 2025 19:51
Until: Nov 26, 2025 18:30
Wind Advisory
* WHAT...Southwest winds turning west 20 to 30 mph with gusts around
45 mph expected.
* WHERE...Southeast Michigan.
* WHEN...From 10 AM Wednesday to 4 AM EST Thursday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Windy condition will initially begin across
far southern Michigan through the morning hours, expanding north
into the remainder of Southeast Michigan through the afternoon
hours. Peak wind gust potential with gusts around 45 mph will be
most likely from 3PM into the early morning hours on Thursday.
Some isolated wind gust potential to 50 mph will be possible
within the Thumb, especially along the Saginaw Bay shoreline.
Additionally, snow showers, which will build in across the region
in the late afternoon and evening hours, will also be capable of
producing an isolated stronger gust to 45-50 mph.
From: Nov 25, 2025 19:17
Until: Nov 26, 2025 09:30
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
###
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.
###
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.
###
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.
###
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.
###
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.
###
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.
###
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
###
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 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.
###
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.
###
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
