Environment and Climate Change Canada has rolled out a new extreme weather alert system that meteorologists say could help reduce “alert fatigue.”
Beginning Tuesday, Environment Canada is using a system that allows forecasters to draw a polygon over an area encompassing a severe weather alert.
This new system allows for a much more targeted approach, Giselle Dookhie, an emergency preparedness meteorologist with Environment Canada, told Global News.
“This will greatly reduce the areas that would have been otherwise warned when we had zone-based forecasting, which is perfect because it reduces those alert notifications if you’re not expected to be impacted by that warning,” she said.
The more precise warnings comes after the national weather agency launched new alert system last fall that added colour codes — yellow, orange or red — to indicate the seriousness of the weather event.
Yellow alerts are the most common. They are issued when hazardous weather may cause damage, disruption, or health impacts. Impacts are likely moderate, localized, and/or short-term.
Orange alerts are issued when severe weather is likely to cause significant damage, disruption, or health impacts. Impacts can be major, widespread, and/or may last a few days.
Red alerts are rare. They are issued when very dangerous and possibly life-threatening weather will cause extreme damage and disruption. Impacts have the potential to be extensive, widespread, and prolonged.
That system introduced in November 2025 still left an entire region blanketed by the colour-coded alerts.
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Dookhie said the update rolled out this week will issue more targeted warnings for severe thunderstorms and tornadoes — only to the affected areas.
Dookhie said the biggest impact will be reducing what has become known as “alert fatigue” caused by blanket alerts that cover areas outside the path of severe weather.
“We really do want Canadians to take warnings very seriously and when they do see a threat that it’s likely to impact them, there is someone behind the scenes that is checking closely on these storms and they want you to do what you need to protect yourself, others and your property from harm,” she said.
The changes only apply to severe thunderstorm and tornado warnings — other alerts like heat warnings and thunderstorm watches will still have broad alert areas.
Global News meteorologist Anthony Farnell said he has been waiting for Environment Canada to implement this forecasting system, which has been in place in the U.S. for 16 years.
“It led to big improvements south of the border,” he said.
“If it gets implemented properly, we are going to see some big results quickly as soon as that next severe weather outbreak.”
He said the new system will not only improve accuracy but also increase efficiency.
“The earlier you can get those warnings out to the people that will be impacted, the more likely you are to save property and then possibly save lives,” he said.
“I think overall it’s going to help all of us out in the field of meteorology.”
Environment Canada said the colour-coded warning system will remain in place alongside the new polygon system for a transition period to allow third-party weather platforms to adapt.
The broader regional system will still remain in place for weather watches.
This system makes zero sense. Already had damaging storms that were “yellow”, including tornadoes. And orange warnings that were nothing-burgers.
F*ck the Liberals. – Hey look it’s James Bilodeau aka the NAZl scumbag from Kelowna. How’s the weather up there? I guess it doesn’t matter considering you never actually leave your home and interact with the rest of society
I am freedumb but blame the others.
Jay Voorhees
August 11, 2026 at 12:24 pm
Anonymous – Another MAGA Conservative denialist with no education and zero understanding of basic science
So, Mr. Jay Voorhees, explain it all to us then. Every bit of the climate change theory and why it is gospel. Can you do that please? I want to make sure I have it straight. Sure dont want to be an uneducated Con denialist. Nor would i want to get led down the garden path by a Liberal fascist p*g who hasn’t a clue either.
Yeah whatever. Maybe try to get forecasts right first. Environment and Climate Change Canada is the most useless bunch of ‘experts’ I have ever had the misfortune to see my taxes get squandered on. A bunch of zeros.
We’ve had a weather watch system in place for a very, very long time. Some people call them windows.
Anonymous – Another MAGA Conservative denialist with no education and zero understanding of basic science
They thought that telling us the sky was falling every time there was a summer day or a thunderstorm that their climate change message would become more accepted by Canadians but it did the opposite so now they are going to tone it down, hopefully to more reality alerts.
It’s about time they did something to stop all these warnings that mean nothing. Didn’t they learn anything after Covid if you keep telling people how bad things are they stop listening and that’s dangerous. It’s the story of the boy that cried wolf
Hopefully they will stop warning Canadians of “dangerous heat” when it is 25c outside. All trying to spin a Liberal narrative on so callled climate change.
Well, the last ‘new’ Alert system made no sense, maybe another new one will work. But for some reason I have little faith it will.
“Anthony Farnell said he has been waiting for Environment Canada to implement this forecasting system which has been in place in the U.S. for 16 years”
So backwards Canada has to copy the USA again. Good thing that the USA is next to Canada otherwise we would still be living in caves banging sticks together.