When scientists applied a new model of human survivability that takes into account the body's ability to function and stay cool depending on age, they found all six events had seen non-survivable periods for older people who could not find shade.
Kennedy predicts hot and dry conditions from the west will shift eastward later this week, allowing for a noticeable warm-up and shift towards spring-like conditions.
A fast-moving cold front is pushing south out of Canada, sending colder air across the Northeast and Mid-Atlantic, according to FOX Weather. More than 40 million people are expected to feel this 'winter flashback,' with temperatures running 10 to 20 degrees below average through midweek.
The tilt of the Earth's axis as it orbits around the sun causes seasons. Different parts of the world receive different amounts of sunlight depending on that angle. In the Northern Hemisphere, we experience winter from December to March, while the Southern Hemisphere soaks up the sun.
Not only will temperatures break March monthly records, but this heatwave will even break April records. Over the next week, around 800 high temperature records are forecast to be neared, tied or broken at 165 locations in Western and Central states - some by more than 10 degrees - with unusual warmth set to linger into late March.
During this heat wave, "not only are daily temperature records likely to be broken across the region, but even the high temperature records for any day in the entire month of March," the National Weather Service said in a Tuesday morning forecast.
Even though the evidence is still early, this could be a very significant event in 2026 and lingering into 2027. Its function in the global earth system is to release heat from the deeper oceans that has been temporarily stored there. El Nino allows that subducted heat to be unearthed.
"So whenever people think about hot weather, they always talk about the temperature," he says. "There's two issues with that. First of all, most people don't realise that the temperature is measured in the shade. So if you're in direct solar radiation, the amount of heat stress you're exposed to is much greater as it will stress your body out a lot more."
An extraordinarily warm and mostly sunny January has left the snowpack across California's Sierra Nevada far smaller than usual - 59% of average for this time of year, state water officials announced Friday as they held the season's second snow survey. "We are now about halfway through the typically wettest part of the year," said Andy Reising, manager of snow surveys for the California Department of Water Resources.
If you are reading this on the East Coast, congratulations on the warmer weather you're finally getting this week. It was cold and snowy for a while there. Here in the West, we wish we'd been in your shoes. Spare a thought for the tens of millions of us who live on the other side of the continent, where a catastrophe is unfolding.
