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
Liberals still have faith in David Johnston's work on foreign meddling: House leader
Government House leader Mark Holland says the federal Liberals still have faith in the man they appointed to investigate the issue of foreign interference in Canadian elections.

Early estimates indicate 200 structures damaged in Halifax-area wildfire
Approximately 200 homes or structures have been damaged by the wildfire that began burning Sunday in the Upper Tantallon, N.S., area, according to preliminary estimates.
Federal politicians congratulate Alberta's Danielle Smith on election win
Prime Minister Justin Trudeau is congratulating Alberta Premier Danielle Smith on her election win, after she called out his 'harmful' energy policies in her victory speech.
Top AI CEOs, experts raise 'risk of extinction' from AI
Top artificial intelligence executives including OpenAI CEO Sam Altman on Tuesday joined experts and professors in raising the 'risk of extinction from AI,' which they urged policymakers to equate at par with risks posed by pandemics and nuclear war.
Toronto Blue Jays player shares anti-LGBTQ2S+ video telling people why they should boycott Target
Toronto Blue Jays relief pitcher Anthony Bass has garnered social media attention once again after sharing an anti-LGBTQ2S+ video on his Instagram.
Danielle Smith's UCP holds onto power in Alberta
Danielle Smith is still the premier of Alberta, surviving a vigorous campaign and a tight vote Monday against NDP challenger Rachel Notley.
opinion | Don Martin: The lessons for Pierre Poilievre from the Alberta election
Danielle Smith's win in the Alberta election hands her the most starkly divided province confronting any premier in Canada, writes commentator Don Martin.
'This has been called a genocide': New book details the fight for missing, murdered Indigenous women, girls
New investigative book 'Unbroken' shares the stories of families raising awareness for missing and murdered Indigenous women and girls in Canada.
opinion | Tom Mulcair: David Johnston should leave graciously while he still can
If indeed a majority of the House of Commons says David Johnston has to step down, he'll have no choice but he shouldn’t wait to be shoved. He should leave graciously while he still can, writes former NDP leader Tom Mulcair.