A rare weather phenomenon strikes southern Ontario again
Thundersnow has struck southern Ontario for a second time this month.
The weather phenomenon takes place when lightning and thunder strike during a snowfall.
CTV News Toronto Weather Anchor Lyndsay Morrison said thunder and lightning has been reported during a sudden snowfall on Wednesday afternoon around downtown Toronto, Burlington, Hamilton, on the QEW toward Niagara, in the Kawarthas, and near Woodstock.
“While thundersnow feels uncommon, it’s certainly not unheard of,” Morrison said.
“What’s unique about this season is that we’ve had two thundersnow events this March where it has happened in the most populated part of our country, so there have been lots of people witnessing it, recording it and reporting it!”
According to the Farmer's Almanac, thunderstorms occur when an air mass becomes so unstable that it overturns violently, usually when drastically different temperatures meet.
Local residents were quick to chronicle the “fast and furious” arrival of the spring snow, paired with a crack of thunder and lightning.
Thundersnow last struck southern Ontario less than a month ago as a major snowstorm hammered the region on March 3.
This time around, on Wednesday, a sharp cold front rushed through Toronto, bringing a “burst of heavy wet snow” after a sunny morning that began to resemble typical spring weather.
Environment Canada issued a weather advisory in Toronto for Wednesday, forecasting one to two centimetres of snow, paired with winds gusting up to 70 km/h.
With files from CTV News Toronto's Abby O'Brien
CTVNews.ca Top Stories
Unemployment rate ticks higher in May for first time in 9 months: StatCan
Canada's jobless rate ticked higher to 5.2 per cent in May, marking the first increase since August 2022 as economists have been watching for any sign of a softening labour market.

2-year-old girl dead after going missing near Canmore, Alta., campground
A two-year-old girl who went missing from Canmore's Bow River Campground on Thursday afternoon has died.
Bernardo's prison transfer 'slap in the face' for victims' families, Tori Stafford's father says
The father of Tori Stafford, an Ontario girl who was murdered in 2009, says the latest decision to transfer convicted killer Paul Bernardo to a medium-security prison is a 'slap in the face' to all murder victims' families.
'That hurt has been extended': Indigenous leaders in Manitoba share displeasure of Queen Elizabeth II statue being back up
Two years after two statues were knocked down and damaged at the Manitoba Legislature, one is now back up and Indigenous leaders are upset by the decision.
Trump charged over classified documents in 1st federal indictment of an ex-president
Donald Trump said Thursday that he was indicted for mishandling classified documents at his Florida estate, a remarkable development that makes him the first former president in U.S. history to face criminal charges by the federal government that he once oversaw.
Ottawa girl set to become the youngest university graduate in Canadian history
Anthaea-Grace Patricia Dennis is not your typical 12-year-old. She is a child prodigy who's about to become the youngest Canadian to ever graduate from university.
A little white pill, Captagon, gives Syria's Assad a strong tool in winning over Arab states
A little white pill has given Syrian President Bashar Assad powerful leverage with his Arab neighbours, who have been willing to bring him out of pariah status in hopes he will stop the flow of highly addictive Captagon amphetamines out of Syria.
Largest ruby ever to come to auction sells for record-breaking US$34.8 million
A 55.22-carat ruby has become both the largest and most valuable gem of its kind ever to sell at auction, netting US$34.8 million on Thursday.
Poor air quality from fires expected to continue for at least a couple days
Smoke and flames continue to engulf much of Canada, with Alberta imposing new evacuation orders, Manitoba bracing for heavy, lightning-generating thunderstorms and high wildfire risks and poor air quality from coast to coast.