A Yellow Snowfall Warning is issued by Environment and Climate Change Canada when significant snowfall is expected to cause hazardous conditions. Heavy snow can make roads slippery, reduce visibility and lead to travel delays or temporary road closures. Yellow warnings are the most common alert level in Canada and generally indicate moderate, localized or short-term disruptions.
A Yellow Snow Squall Warning indicates a low to moderate risk of hazardous travel caused by brief periods of heavy snowfall, blowing snow, or reduced visibility. While impacts are generally localized, drivers should be prepared for rapidly changing road conditions.
A yellow Air Quality Warning indicates a moderate health risk, typically corresponding to an AQHI rating of 4 to 6. While most people can continue their normal activities, individuals who are more sensitive to air pollution may wish to reduce prolonged or strenuous outdoor activity.
A yellow blizzard warning in Canada means blizzard conditions are expected to cause moderate, localized or short-term impacts. Strong winds combined with falling or blowing snow can significantly reduce visibility and create hazardous travel conditions. Although yellow is the lowest level in Canada’s colour-coded weather alert system, a yellow blizzard warning should still be taken … Read more
A yellow freezing rain warning in Canada means freezing rain is expected to create hazardous conditions and moderate, localized or short-term impacts. Rain that freezes on contact with cold surfaces can cause ice to accumulate on roads, sidewalks, trees and other exposed surfaces. Even small amounts of ice can make driving and walking dangerous. Depending … Read more
A yellow rainfall warning in Canada means heavy or prolonged rain may cause moderate, localized or short-term impacts. Potential conditions can include localized flooding, difficult travel and disruptions to outdoor activities or transportation. The severity of the impacts depends on rainfall amounts, duration, ground conditions and location. This guide explains what a yellow rainfall warning … Read more
A yellow severe thunderstorm warning in Canada means a severe thunderstorm may cause moderate, localized or short-term impacts. Potential hazards can include strong winds, heavy rainfall, hail and dangerous lightning. Severe thunderstorm conditions can develop and change quickly. This guide explains what a yellow severe thunderstorm warning means, how serious it is, the potential impacts … Read more
A yellow wind warning in Canada means strong winds may cause moderate, localized or short-term impacts. Potential conditions can include fallen branches, loose objects, localized power outages and difficult driving conditions for certain vehicles. The severity of the impacts depends on wind speed, duration, location and local conditions. This guide explains what a yellow wind … Read more
A yellow winter storm warning in Canada means a combination of hazardous winter weather may cause moderate, localized or short-term impacts. Snow, ice and strong winds can create difficult travel conditions, transportation delays and disruptions to daily activities. The severity of the impacts depends on the combination, intensity and duration of the expected conditions. This … Read more