Sometimes, yellow snow can provide clues about the weeks ahead
There are a few things that can cause snow to turn yellow. Let's learn about two of them.
Today, we’re talking about yellow snow ... and not the type of yellow snow you find around fire hydrants all winter long.
We all know what that is — especially if you’re a dog owner.
No, today we are talking about a special kind of yellow snow found in late winter or early spring, and what it may mean for you in the weeks ahead.
If a winter is mild, or there is a spell of mild weather nearing the end of the season, it can cause trees to pollinate early.
Some trees, especially coniferous ones like pine and spruce, produce pollen that resembles a yellow dust.
You’ll often find it coating cars, patio equipment ... and snow, if there’s any left on the ground.
If you’re seeing it, it means allergy season has begun.
The outdoor conditions don’t even need to “feel” or “look” like a warm, spring day. One study by the National Institutes of Health found that people who suffer from seasonal allergies have been known to notice symptoms on days with snowfall and when the temperature falls below zero.
Sometimes, yellow snow can fall from the sky. That was the case all the way back in 2006, when dust and sand from the desert regions of northern China were transported to South Korea while it was experiencing a snowstorm, prompting officials to issue a dust warning due to health concerns.
While South Korea is no stranger to dust storms, this type of yellow snow remains a rare weather phenomenon.
Pollen season in Canada
Pollen season typically lasts from April to October in most of Canada, but it can start as early as January in milder regions like B.C., or elsewhere in the country if winter temperatures have been above-seasonal.
If you suffer from seasonal allergies, you aren't alone. Up to 9 million Canadians live with them, and upwards of 1 million dogs.
Sufferers have devised coping mechanisms, like using over-the-counter medications and avoiding outdoor activities when pollen counts are high.
Many also turn to the internet, looking up the pollen report on The Weather Network website.
Pollen avoidance strategies
Stay indoors on dry, windy days. Pollen counts are lowest after rain, which helps clear the air.
Skip the outdoor chores. Try to delegate lawn mowing, weed pulling, and other gardening chores that stir up pollen to people who don't have sensitivities.
Take a shower to rinse pollen from your skin and hair after spending time outside, and put on clean clothes.
Wear a face mask when doing outside chores on high-pollen days.
Keep windows and doors closed on high pollen days.
Wraparound or oversized sunglasses can reduce pollen contact with the eyes.
Keep the windows and sunroof closed when in your car.
Invest in a HEPA air purifier and keep it maintained.
Header image: File photos via Canva Pro.