If you are dreaming of a white Christmas in Metro Vancouver, do not maintain your breath.
While locals noticed various quantities of the white stuff on the massive day, the wintry wonderland was an anomaly. Usually, Christmas within the metropolis is moist or dry; a frosty vacation is decidedly uncommon.
In a current replace, the National Oceanic and Atmospheric Administration (NOAA) known as for a 75 p.c chance that La Niña will likely be current this winter and won’t transition to a “neutral” climate sample till round February.
Typically, the influence of La Niña on southern BC doesn’t change into obvious till late fall or early winter. But it tends to provide cooler than regular temperatures and snowier situations over the mountains.
For instance, final yr was a La Niña yr within the Lower Mainland and there was lots of snowfall, particularly round and on Christmas Day. However, in response to Environment Canada, this is only one issue affecting native climate and doesn’t present a full image of the seasonal forecast.
Rolf Campbell, a climate historian and climate forecaster, collected statistics from Environment Canada and by way of the Internet Create an infographic which shows how uncommon snowfall is on Christmas Day in Vancouver.
The visible instrument makes use of inexperienced timber to point days when there was no white stuff to be seen, after which snowflakes, partial snow, and full snow to point various quantities of snowfall on the times when some of that got here.
Will the Metro Vancouver climate forecast embody a white Christmas this yr?
Environment Canada analyzed 65 years of climate data for 45 main facilities throughout Canada and calculated the chance that there will likely be a white, snowy Christmas Day within the 65 years between 1955 and 2019.
In some locations, the percentages of a white Christmas are one hundred pc, like Kenora, Yellowknife, and Whitehorse. In Vancouver, the info confirmed there was solely a slim chance of waking as much as a frosty wonderland, with a 9 p.c chance of snow on the massive day.
However, in terms of “perfect Christmas conditions,” the percentages of a super day are even decrease. The nationwide meteorologist characterizes this “perfect” vacation as having 2 cm of snow on the bottom or extra within the morning and a measurable quantity of snow falling within the air throughout the day.