Dennis Mersereau

1 week ago | yahoo.com | Dennis Mersereau

Tornadoes are a frightening threat during severe thunderstorms. Thankfully, only a tiny percentage of thunderstorms ever produce a tornado, and most of those twisters are relatively weak and short-lived. Some tornadoes, though, grow into tragic events that exhibit nature’s raw power. And it’s a hazard that’s not just confined to Tornado Alley. Here’s a look at seven of the deadliest and most violent tornadoes ever recorded.

1 week ago | ca.news.yahoo.com | Dennis Mersereau

Tsunami safety tips: What to do if these dangerous waves threatenTsunami safety tips: What to do if these dangerous waves threatenTsunamis are a destructive and deadly hazard for coastal communities across Canada and around the world. A tsunami is a series of large, persistent waves caused by the sudden displacement of a body of water.

1 week ago | ca.news.yahoo.com | Dennis Mersereau

What is a tsunami? How these powerful waves spell coastal dangerWhat is a tsunami? How these powerful waves spell coastal dangerTsunamis pose a danger to every community across Canada’s three coastlines. A tsunami is a series of large, persistent waves caused by the sudden displacement of a body of water. Earthquakes are responsible for more than 80 per cent of tsunamis that form around the world, according to NOAA, but these waves can also occur after events like landslides and volcanic eruptions.

1 week ago | ca.news.yahoo.com | Dennis Mersereau

Forecasters in the United States have tracked nearly 500 confirmed tornadoes across the country since the beginning of the year. Most of those twisters touched down in just three recent outbreaks. Severe storm activity will move north as we head deeper into the heart of tornado season. Here’s a look at what’s happened so far in 2025, and when we might expect tornado activity to ramp up here in Canada over the coming weeks and months. The year’s first confirmed tornado touched down on Jan.

1 week ago | ca.news.yahoo.com | Dennis Mersereau

These were seven of history’s most violent tornadoesThese were seven of history’s most violent tornadoesTornadoes are a frightening threat during severe thunderstorms. Thankfully, only a tiny percentage of thunderstorms ever produce a tornado, and most of those twisters are relatively weak and short-lived. Some tornadoes, though, grow into tragic events that exhibit nature’s raw power. And it’s a hazard that’s not just confined to Tornado Alley.