Londoners may want to enjoy the brief calm while it lasts, because a significant winter storm is poised to move into the region, bringing heavy snowfall, gusting winds, and sharply reduced visibility over the weekend. Environment Canada has issued a snowfall warning for the area, predicting that conditions will rapidly worsen beginning late Saturday evening and continuing through Sunday.
While Saturday itself begins on a relatively quiet and mild note, with sunshine and manageable temperatures, the peaceful conditions are not expected to last long. As the afternoon progresses, cloud cover will steadily increase, flurries will begin to appear, and a powerful weather system will start setting the stage for what could become one of the more disruptive snowfall events in recent weeks.
Residents are being urged to use caution, stay informed of weather updates, and consider postponing non-essential travel as the storm takes hold.
Snowfall Warning Issued as Storm System Approaches
Environment Canada has confirmed that a substantial accumulation of snow is expected to arrive in London beginning late Saturday evening and continuing into the early hours of Sunday. Meteorologists estimate snowfall totals could reach up to 15 centimetres in some areas, with official forecasts indicating approximately 10 centimetres may accumulate overnight.
This heavy snow, coupled with increasing wind speeds, could cause significant disruptions on local roads, highways, and sidewalks. Snowfall at this rate has the potential to quickly overwhelm plowing operations, especially if it intensifies during late-night and early-morning hours.
Reduced Visibility a Major Concern
Along with heavy precipitation, strong winds are expected to accompany the storm, creating periods of blowing snow. These conditions can dramatically reduce visibility, making driving not only difficult but dangerous, particularly on open roads and rural routes surrounding London.
Environment Canada has warned that visibility may be significantly reduced at times due to a combination of heavy snowfall and wind-driven snow. This decreases reaction time for drivers and raises the risk of accidents, especially for those unfamiliar with winter driving conditions.
Authorities are encouraging motorists to remain off the roads wherever possible during the height of the storm.
Saturday: Calm Skies Give Way to Flurries by Evening
The day begins on a relatively positive note, with mainly sunny skies and light winds offering a short-lived window of mild winter weather. Temperatures are expected to reach a high of plus 1°C, giving the city a brief reprieve from harsher cold.
However, a noticeable shift is predicted throughout the afternoon as clouds gradually increase and the first signs of the incoming system appear. By late afternoon, London will see a 40 per cent chance of light flurries, signalling the beginning of more unsettled conditions.
Conditions Change Quickly by Nightfall
Saturday night marks the true onset of the storm. Snow is forecast to fall steadily, with accumulations reaching around 10 centimetres by Sunday morning. Winds will pick up significantly, blowing from the south at 30 km/h, with gusts climbing as high as 50 km/h.
Temperatures will dip slightly to a low of minus 2°C, and the wind chill will make it feel closer to minus 8°C during the evening hours. These strong winds will not only lower the perceived temperature but will also contribute to drifting snow and slippery surfaces.
For many, this combination of snow and wind may make staying at home the safest and most practical option.
Sunday Brings Continued Wintery Conditions
If residents are hoping for relief on Sunday morning, the forecast offers little improvement. Snow is expected to continue through the early part of the day before potentially mixing with rain. This transition could create wet, slushy conditions on roads and sidewalks.
By late morning or early afternoon, the snow is forecast to taper off and end, giving way to mostly cloudy skies with a lingering 60 per cent chance of additional flurries. Snowfall during the daytime hours could add another 2 to 4 centimetres on top of what falls overnight.
Strong Southwest Winds Add to Challenges
Wind will remain a key factor on Sunday, shifting to the southwest at speeds of up to 40 km/h, with gusts reaching 60 km/h. These conditions could lead to continued blowing snow, especially in open areas and along highways.
The daytime high will hover around plus 2°C, meaning some melting may occur. However, with colder temperatures expected later, refreezing remains a concern, increasing the risk of icy patches on roads, sidewalks, and driveways.
Potential for Snow Squalls Increases the Risk
One of the more concerning possibilities in Sunday’s forecast is the chance of snow squalls. These intense, localized bursts of heavy snow can develop quickly and reduce visibility to near zero within minutes. Even if areas appear clear at times, sudden squalls may create rapidly changing and hazardous conditions.
Drivers caught in a snow squall may be unable to see more than a few metres ahead, which can lead to dangerous chain-reaction collisions if traffic is moving too quickly for the conditions.
Residents and commuters are strongly encouraged to monitor weather alerts continuously and adjust their travel plans accordingly.
Impact on Transportation and Daily Life
The combination of heavy snow, strong winds, reduced visibility, and the potential for snow squalls could significantly affect transportation in and around London. Major roads and highways may become slow-moving or impassable during the height of the storm, and minor residential streets may not be cleared immediately.
Transit services could also experience delays, and cancellations are possible depending on how quickly conditions deteriorate. Pedestrians and cyclists are advised to exercise extreme caution or avoid traveling altogether until conditions improve.
Power Outages Not Out of the Question
With strong wind gusts reaching up to 60 km/h on Sunday, there is also the possibility of downed branches and power lines, which could result in localized power outages. Saturated snow combined with wind can place additional strain on trees and infrastructure.
Residents are encouraged to ensure that phones are charged, flashlights are accessible, and emergency supplies are available in case of temporary outages.
Safety Tips During the Storm
Authorities and meteorologists are offering the following recommendations to help residents stay safe:
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Avoid non-essential travel during the storm
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Keep an emergency winter kit in your vehicle if you must drive
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Clear snow in stages to reduce physical strain
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Dress in layers and cover exposed skin when outside
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Watch for changing conditions and black ice
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Keep informed through local weather and emergency updates
Those responsible for clearing snow should also be mindful of the physical demands. Heavy, wet snow can quickly lead to fatigue and pose a risk for injury or cardiac strain.
Prepare Now for the Weekend Snowfall
With several hours of calm conditions still ahead, Saturday afternoon offers a useful opportunity for people to prepare. Running essential errands, stocking up on groceries, charging devices, and checking on neighbors — especially seniors or those with limited mobility — can go a long way in reducing stress over the weekend.
Parking restrictions, if implemented, should be followed to make plowing operations more efficient. Vehicles parked along narrow streets may prevent effective snow removal and worsen already difficult road conditions.
Conclusion: Winter Makes a Strong Return to London
As London braces for an extended period of heavy snow, blowing winds, and reduced visibility, one thing is clear: winter is far from finished. What begins as a calm, bright Saturday is expected to transform into a challenging and potentially dangerous storm by nightfall.
With up to 15 centimetres of snow forecast through the weekend, along with the risk of squalls and strong gusts, residents are encouraged to take this warning seriously, remain cautious, and prioritize safety over convenience.