Markham
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Feels like: -4.8°C (23.4°F)
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Markham, Canada
Click any image to view larger versionPast Weather Alerts
5 of 133freezing drizzle
Areas of freezing drizzle continue. What: Periods of freezing drizzle leading to icy surfaces. Whe...
freezing drizzle
Areas of freezing drizzle continue. ### Roads, walkways, and other surfaces will likely become icy...
cold
Cold temperatures continue this weekend. What: Wind chills of minus 25 to minus 30. When: Tonight ...
snow squall
Snow squalls continue. What: Significantly reduced visibility in heavy snow. Additional local snowf...
snow squall
Snow squalls expected. What: Significantly reduced visibility in heavy snow. Local snowfall amounts...
Past Weather Alerts for Markham
freezing drizzle
Areas of freezing drizzle continue. What: Periods of freezing drizzle leading to icy surfaces. When: This evening. Additional Information: An area of freezing drizzle has developed across eastern portions of the Golden Horseshoe and may last through parts of this evening. ### Roads, walkways, and other surfaces will likely become icy and slippery. Icy surfaces will likely form and could be difficult to detect. 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.
freezing drizzle
Areas of freezing drizzle continue. ### Roads, walkways, and other surfaces will likely become icy and slippery. Icy surfaces will likely form and could be difficult to detect. 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.
cold
Cold temperatures continue this weekend. What: Wind chills of minus 25 to minus 30. When: Tonight into Saturday morning. Similar cold temperatures expected to return Saturday night into 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snow squall
Snow squalls continue. What: Significantly reduced visibility in heavy snow. Additional local snowfall amounts of 5 to 15 cm. When: Continuing through this afternoon. Additional information: Snow squalls off Georgian Bay will continue to affect the area. The heaviest snowfall is expected between Collingwood and areas west of Barrie. ### 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.
snow squall
Snow squalls expected. What: Significantly reduced visibility in heavy snow. Local snowfall amounts of 10 to 15 cm. When: Overnight through Thursday night. Additional information: Snow squalls off Georgian Bay will continue to affect areas primarily west of Barrie. ### Visibility will likely be suddenly reduced to near zero at times. Snow squall warnings are issued when localized, intense snowfall causing rapid accumulation and/or visibility near zero is expected. 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.
snow squall
Snow squalls are no longer expected. ###
snow squall
Snow squalls are no longer expected. Lake effect flurries will continue through the day, however impacts will be low. ###
snow squall
Snow squalls return tonight. What: Significantly reduced visibility in heavy snow. Local snowfall amounts of 10 to 15 cm. When: Tonight through Thursday morning. Additional information: Snow squalls will shift back through the region tonight, primarily affecting areas south of Georgian Bay, west of Barrie. ### 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.
cold
A period of very cold wind chills is expected. Bitterly cold conditions expected late tonight into Tuesday morning. What: Wind chill values near minus 25. Brisk winds gusting up to 50 km/h. When: Tonight into Tuesday morning. Additional information: Bitterly cold conditions are expected tonight into Tuesday morning with wind chills near minus 25. Wind chill values will moderate through the day Tuesday but are still expected to be minus 15 to minus 20. ### Extreme cold puts everyone at risk. Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter. Watch for cold related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes. 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.
winter storm
Winter storm conditions today. What: Snowfall amounts of 15 to 30 cm. Locally higher amounts are possible. Significantly reduced visibility in blowing snow with winds gusting up to 50 km/h. When: Continuing through the overnight. Additional information: A band of lake enhanced snow off Lake Ontario is currently impacting areas from Ajax into much of the Greater Toronto Area. Snowfall rates will be considerably heavier in this band. Locations affected by lake enhancement will receive the highest snowfall amounts. Lake enhancement will continue over parts of the Greater Toronto Area through this afternoon before shifting southward toward Oakville and Burlington later this afternoon or this evening as winds become northeasterly. Snow will taper to periods of light snow or flurries overnight. ### Roads and walkways may be very difficult to navigate. 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.
winter storm
Hazardous winter storm conditions today. What: Snowfall amounts of 20 to 40 cm. Locally higher amounts are possible. Peak snowfall rates of 5 to 8 cm per hour. Significantly reduced visibility in blowing snow with winds gusting up to 50 km/h. When: Continuing through the overnight. Additional information: A band of lake enhanced snow off Lake Ontario is currently impacting areas from Ajax into much of the Greater Toronto Area. Snowfall rates will be considerably heavier in this band. Locations affected by lake enhancement will receive the highest snowfall amounts. Lake enhancement will continue over parts of the Greater Toronto Area through this afternoon before shifting southward toward Oakville and Burlington later this afternoon or this evening as winds become northeasterly. Snow will taper to periods of light snow or flurries overnight. ### Roads and walkways will likely be very difficult to navigate. 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
Hazardous winter storm conditions today. What: Snowfall amounts of 20 to 40 cm. Locally higher amounts are possible. Peak snowfall rates of 5 to 7 cm per hour. Significantly reduced visibility in blowing snow with winds gusting up to 50 km/h. When: Continuing through tonight. Additional information: A band of lake effect snow off Lake Ontario has begun impacting areas from western Northumberland county to the Greater Toronto Area. Widespread snow associated with an approaching system is also lifting north into the area this morning. As this occurs, lake enhancement will continue. Locations affected by lake enhancement will receive the highest snowfall amounts. Lake enhancement will occur over parts of the Greater Toronto Area through this afternoon before shifting southward toward Oakville and Burlington later this afternoon or this evening as winds become northeasterly. ### Roads and walkways will likely be very difficult to navigate. 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
Winter storm conditions today. What: Snowfall amounts of 15 to 30 cm. Locally higher amounts are possible. Significantly reduced visibility in blowing snow with winds gusting up to 50 km/h. When: Continuing through tonight. Additional information: A band of lake effect snow off Lake Ontario has begun impacting areas from western Northumberland county to the Greater Toronto Area. Widespread snow associated with an approaching system is also lifting north into the area this morning. As this occurs, lake enhancement will continue. Locations affected by lake enhancement will receive the highest snowfall amounts. Lake enhancement will occur over parts of the Greater Toronto Area through this afternoon before shifting southward toward Oakville and Burlington later this afternoon or this evening as winds become northeasterly. ### Roads and walkways may be very difficult to navigate. 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.
winter storm
Hazardous winter storm conditions today. What: Snowfall amounts of 20 to 40 cm. Locally higher amounts are possible. Significantly reduced visibility in blowing snow with winds gusting up to 50 km/h. When: Continuing through tonight. Additional information: A band of lake effect snow off Lake Ontario has begun impacting areas from western Northumberland county to the Greater Toronto Area. Widespread snow associated with an approaching system is also lifting north into the area this morning. As this occurs, lake enhancement will continue. Locations affected by lake enhancement will receive the highest snowfall amounts. Lake enhancement will occur over parts of the Greater Toronto Area through this afternoon before shifting southward toward Oakville and Burlington later this afternoon or this evening as winds become northeasterly. ### Roads and walkways will likely be very difficult to navigate. 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
### Roads and walkways may be very difficult to navigate. 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.
winter storm
Winter storm conditions expected today. What: Snowfall amounts of 15 to 30 cm. Locally higher amounts are possible. Significantly reduced visibility in blowing snow with winds gusting up to 50 km/h. When: Early this morning through tonight. Additional information: A band of lake effect snow off Lake Ontario will impact the area early this morning, predominantly from western Northumberland county to the Greater Toronto Area. Widespread snow associated with an approaching system will develop later this morning. As this occurs, lake enhancement is expected. Locations affected by lake enhancement will receive the highest snowfall amounts. Lake enhancement will occur over parts of the Greater Toronto Area through this afternoon before shifting southward toward Oakville and Burlington later this afternoon or this evening as winds become northeasterly. ### Roads and walkways may be very difficult to navigate. 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.
winter storm
Hazardous winter storm conditions expected today. What: Snowfall amounts of 20 to 40 cm. Locally higher amounts are possible. Significantly reduced visibility in blowing snow with winds gusting up to 50 km/h. When: Early this morning through tonight. Additional information: A band of lake effect snow off Lake Ontario will impact areas beginning this morning, predominantly from western Northumberland county to the Greater Toronto Area. Widespread snow associated with an approaching system will develop later this morning. As this occurs, lake enhancement is expected. Locations affected by lake enhancement will receive the highest snowfall amounts. Lake enhancement will occur over parts of the Greater Toronto Area through this afternoon before shifting southward toward Oakville and Burlington later this afternoon or this evening as winds become northeasterly. ### Roads and walkways will likely be very difficult to navigate. 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
### Roads and walkways will likely be very difficult to navigate. 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
Winter storm conditions expected Sunday. What: Snowfall amounts of 15 to 30 cm. Locally higher amounts are possible. Significantly reduced visibility in blowing snow with winds gusting up to 50 km/h. When: Overnight or early Sunday morning through Sunday night. Additional information: A band of lake effect snow off Lake Ontario will impact areas beginning overnight or early Sunday morning, predominantly from western Northumberland county to the Greater Toronto Area. Widespread snow associated with an approaching system will develop Sunday morning. As this occurs, lake enhancement is expected. Locations affected by lake enhancement will receive the highest snowfall amounts. Lake enhancement will occur over parts of the Greater Toronto Area through Sunday afternoon before shifting southward toward Oakville and Burlington later Sunday afternoon or Sunday evening as winds become northeasterly. ### Roads and walkways may be very difficult to navigate. 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.
winter storm
Hazardous winter storm conditions expected Sunday. What: Snowfall amounts of 20 to 40 cm. Locally higher amounts are possible. Significantly reduced visibility in blowing snow with winds gusting up to 50 km/h. When: Overnight or early Sunday morning through Sunday night. Additional information: A band of lake effect snow off Lake Ontario will impact areas beginning overnight or early Sunday morning, predominantly from western Northumberland county to the Greater Toronto Area. Widespread snow associated with an approaching system will develop Sunday morning. As this occurs, lake enhancement is expected. Locations affected by lake enhancement will receive the highest snowfall amounts. Lake enhancement will occur over parts of the Greater Toronto Area through Sunday afternoon before shifting southward toward Oakville and Burlington later Sunday afternoon or Sunday evening as winds become northeasterly. ### Roads and walkways will likely be very difficult to navigate. 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
### 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
A winter storm is expected Sunday. What: Snowfall amounts of 15 to 30 cm. Locally higher amounts are possible. Visibility near zero at times in blowing snow with winds gusting to 50 km/h. When: A local lake effect snow band beginning early Sunday morning. Widespread snow Sunday afternoon and evening into Sunday night. Additional information: Lake effect snow caused by easterly winds off Lake Ontario will develop early Sunday morning producing localized heavy snowfall and reduced visibility. By Sunday afternoon snow is expected to become more widespread as a larger system moves into the area. As this occurs, lake enhancement is likely, which will lead to locally higher snowfall amounts in certain areas. The exact placement and intensity of the heavier snowfall remains uncertain at this time. ### 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
winter storm
### Roads and walkways may be very difficult to navigate. Visibility may be suddenly reduced to near zero at times. Travel delays and/or cancellations 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.
winter storm
A winter storm is possible Sunday. What: Snowfall amounts of 15 to 30 cm. Locally higher amounts are possible. Visibility near zero at times in blowing snow with winds gusting to 50 km/h. When: A local lake effect snow band beginning early Sunday morning is possible. Widespread snow beginning Sunday afternoon and ending Sunday night. Additional information: Lake effect snow driven by easterly winds off Lake Ontario may develop early Sunday morning, producing localized heavy snowfall and reduced visibility. By Sunday afternoon, snow is expected to become more widespread as a larger system moves into the area. As this occurs, lake enhancement is likely, which will lead to locally higher snowfall amounts in certain areas. The exact placement and intensity of the heavier snowfall remains uncertain at this time. ### Roads and walkways may be very difficult to navigate. Visibility may be suddenly reduced to near zero at times. Travel delays and/or cancellations 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.
winter storm
A winter storm is possible beginning on Sunday. What: Snowfall amounts of 20 to 30 cm. Locally higher amounts are possible. Visibility near zero at times in blowing snow with winds gusting to 50 km/h. When: A local lake effect snow band beginning early Sunday morning is possible. Widespread snow beginning Sunday afternoon and ending Sunday night. Additional information: Lake effect snow driven by easterly winds off Lake Ontario may develop early Sunday morning, producing localized snowfall and reduced visibility. By Sunday afternoon, snow is expected to become more widespread as a broader system moves into the area. As this occurs, lake enhancement is likely, which will lead to locally higher snowfall amounts in certain areas. The exact placement and intensity of the heavier snowfall remains uncertain at this time. ### Roads and walkways may be very difficult to navigate. Visibility may be suddenly reduced to near zero at times. Travel delays and/or cancellations 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.
snow squall
Snow squalls possible today. What: Total local snowfall amounts of 5 to 10 cm. Reduced visibility in heavy snow and local blowing snow. When: This morning through this afternoon. Additional information: Snow squalls are affecting areas to the northwest and may move into the region this morning. ### Travel may be hazardous. 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.
snow squall
Snow squalls beginning this morning. What: Total local snowfall amounts of 10 to 15 cm. Reduced visibility in heavy snow and local blowing snow. When: This morning continuing through this evening. Additional information: Snow squalls are expected to weaken late this evening. ### 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.
snow squall
Snow squalls expected Friday. What: Total local snowfall amounts of 10 to 15 cm. Reduced visibility in heavy snow and local blowing snow. When: Friday morning continuing through Friday evening. Additional information: Strong wind gusts of 50 km/h will lead to low visibilities in blowing snow. Snow squalls are expected to weaken late Friday evening. ### Travel may be hazardous. 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.
weather
Periods of reduced visibility in lake effect snow tonight. What: Brief bursts of heavy snow may lead to significantly reduced visibility. Local snowfall amounts of 2 to 5 cm. When: Tonight into early Friday morning. Additional information: Lake effect snow bands from Lake Huron are expected to occasionally shift through the area leading to a sudden reduction of visibility. 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snowfall
Snowfall expected today. What: Snowfall amounts near 10 cm. Poor visibility in heavy snow and local blowing snow. When: Ending this evening. Additional information: Snow will ease this evening. ### Travel will likely be challenging. Roads and walkways will likely be difficult to navigate due to accumulating snow. There may be a significant impact on rush hour traffic. 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snowfall
### Travel will likely be challenging. Roads and walkways will likely be difficult to navigate due to accumulating snow. There may be a significant impact on rush hour traffic. 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snowfall
Snowfall expected Wednesday. What: Snowfall amounts near 10 cm. Poor visibility in heavy snow and local blowing snow. When: Beginning Wednesday morning and easing late in the afternoon. Additional information: An Alberta clipper will push into the region with snow beginning Wednesday morning impacting the morning commute. The snow will ease through the afternoon or early evening potentially impacting the evening commute as well. ### Travel will likely be challenging. Roads and walkways will likely be difficult to navigate due to accumulating snow. There may be a significant impact on rush hour traffic. 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.
snow squall
Snow squalls expected. What: Snowfall accumulations of 10 to 25 cm. Significantly reduced visibility in heavy snow and local blowing snow. When: Continuing through early this morning. Additional information: Lake effect snow off Lake Huron and Georgian Bay will continue through early this morning before lifting north of the area. Westerly winds gusting 50 to 60 km/h will redevelop this morning. ### 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.
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.
snow squall
Snow squalls expected. What: Snowfall accumulations of 10 to 25 cm. Significantly reduced visibility in heavy snow and local blowing snow. When: This evening through Tuesday morning. Additional information: Lake effect snow off Lake Huron and Georgian Bay will develop this evening and continue through Tuesday morning before lifting north of the area. Westerly to northwesterly winds gusting up to 70 km/h are expected this evening. As a result, blowing snow is expected to further reduce visibility. Winds will diminish overnight, although westerly winds gusting 50 to 60 km/h will redevelop Tuesday morning. ### 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.
snow squall
Snow squalls expected beginning this afternoon. What: Snowfall accumulations of 15 to 25 cm. Locally higher amounts possible. Significantly reduced visibility in heavy snow and local blowing snow. When: This afternoon through Tuesday morning. Additional information: Brief bursts of heavy snow and local blowing snow are expected this afternoon. Lake effect snow off Lake Huron and Georgian Bay will develop this evening and continue through Tuesday morning before lifting north of the area. Westerly to northwesterly winds gusting up to 70 km/h are expected this afternoon and evening. As a result, blowing snow is expected to further reduce visibility. Winds may diminish overnight, although westerly winds gusting to 60 km/h may redevelop Tuesday morning. ### 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.
snow squall
Snow squalls expected this evening into Tuesday morning. What: Snowfall accumulations of 10 to 15 cm. Locally higher amounts possible. Significantly reduced visibility in heavy snow and local blowing snow. When: This evening through Tuesday morning. Additional information: Snow squalls are expected to develop this evening and continue into Tuesday morning. ### 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.
snow squall
Periods of brief but intense snowfall are expected. Visibility will be rapidly reduced due to the heavy snow combined with blowing snow. What: Significantly reduced visibility in bursts of heavy snow and blowing snow. When: Continuing into this afternoon. Additional information: A band of heavy flurries is moving through the area. Westerly winds gusting up to 70 km/h will result in blowing snow into this afternoon. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. There may be a significant impact on rush hour traffic. 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.
snow squall
Periods of brief but intense snowfall are expected. Visibility will be rapidly reduced due to the heavy snow combined with blowing snow. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. There may be a significant impact on rush hour traffic. 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.
snow squall
Periods of brief but intense snowfall are expected. Visibility will be rapidly reduced due to the heavy snow combined with blowing snow. What: Significantly reduced visibility in bursts of heavy snow and blowing snow. When: This afternoon. Additional information: A band of heavy flurries is moving through the area. Westerly winds gusting up to 70 km/h will result in blowing snow into this afternoon. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. There may be a significant impact on rush hour traffic. 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.
snow squall
Periods of brief but intense snowfall are expected. Visibility will be rapidly reduced due to the heavy snow combined with blowing snow. What: Significantly reduced visibility in bursts of heavy snow and blowing snow. When: Continuing into early this afternoon. Additional information: A band of heavy flurries is moving through the area. Westerly winds gusting 60 to 70 km/h will result in blowing snow into this afternoon. ### Travel will likely be hazardous. Visibility will likely be suddenly reduced to near zero at times. There may be a significant impact on rush hour traffic. 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.
freezing rain
Freezing rain expected this evening. What: Icy and slippery conditions. 2 to 4 mm of ice accretion or build-up possible. When: This evening. Additional information: Precipitation will likely begin as snow or ice pellets before a transition to freezing rain. The freezing rain may last for a few hours this evening before coming to an end overnight. For areas closer to Lake Ontario, little to no icing is expected as temperatures may remain just above the freezing mark. ### Roads and walkways will likely become icy and slippery. 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.