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![map of the oklahoma-texas border shows a hot spot of green, yellow and red over tillman county where a major storm was brewing](https://cdn.mos.cms.futurecdn.net/sXyryQwhacbrqs3ygyaNMi-320-80.jpg)
'You certainly don't see this every day': Ultra-rare backward-spinning tornado formed over Oklahoma
By Nicoletta Lanese published
A pair of odd twisters spun out from a supercell thunderstorm in Oklahoma Tuesday (April 30).
![A view of Greek ruins, including the Parthenon, with a reddish haze from a dust storm.](https://cdn.mos.cms.futurecdn.net/wspsWNPVkQbucfKzZ4Fqy9-320-80.jpg)
Eerie, orange skies loom over Athens as dust storm engulfs southern Greece
By Sascha Pare published
A Saharan dust storm that reached southern Greece on Tuesday (April 23) has turned the sky over Athens and other Greek cities an apocalyptic reddish-orange hue.
![A summer storm is seen near the skyscrapers of the Four Towers Business Area. Rain and hail have reached the city of Madrid during a summer storm, accompanied by high temperatures during a heat wave.](https://cdn.mos.cms.futurecdn.net/bJGgn84SPexH6jHVuiHZw7-320-80.jpg)
Massive heat wave and a supercell thunderstorm caused deadly, baseball-size hailstones to rain down on Spain
By Patrick Pester published
A giant-hail event that hit Girona in northwest Spain in 2022 was fueled by climate change, with a marine heatwave helping to intensify the storm that killed a small child.
![Hurricane Matthew makes landfall in Haiti in 2016. An upcoming La Niña weather pattern could result in powerful Atlantic hurricanes like this one.](https://cdn.mos.cms.futurecdn.net/kEnP8AfAZYagVRaDNfSDx6-320-80.jpg)
'Uncharted territory': El Niño to flip to La Niña in what could be the hottest year on record
By Stephanie Pappas published
A quick flip from El Niño to La Niña is coming soon, but what does that mean for the U.S.?
![Looped video footage of the jet stream circling the Arctic](https://cdn.mos.cms.futurecdn.net/o48xrmBsXgZFkjBwFijFQ9-320-80.gif)
Polar vortex is 'spinning backwards' above Arctic after major reversal event
By Harry Baker published
Earlier this month, a sudden atmospheric warming event caused the Arctic's polar vortex to reverse its trajectory. The swirling ring of cold air is now spinning in the wrong direction, which has triggered a record-breaking "ozone spike" and could impact global weather patterns.
![A satellite image of hole in the cloud above the ocean of Florida's west coast](https://cdn.mos.cms.futurecdn.net/ZLzMocdFWbKZ7eqK7reKMS-320-80.jpg)
Satellite snaps eerily circular holes in the clouds above Florida. What caused them?
By Harry Baker published
A NASA satellite recently spotted a series of bizarre "fallstreak holes" in clouds above Florida. The circular cloud gaps have been previously (and incorrectly) linked to paranormal phenomena.
![The International Space Station orbits about 259 miles (417 kilometers) above Trinidad and Tobago as Hurricane Sam churns in the Atlantic Ocean in the fall of 2021.](https://cdn.mos.cms.futurecdn.net/f2bGT77QU7zDPsjHBrRSsi-320-80.jpg)
We may need a new 'Category 6' hurricane level for winds over 192 mph, study suggests
By Stephanie Pappas published
Scientists argue that adding a Category 6 to the hurricane scale will be needed as the climate changes.
![Iridescent, rainbow-colored clouds in the sky](https://cdn.mos.cms.futurecdn.net/f6pSYiJXNmvetaFWX3gpEZ-320-80.jpg)
Extremely rare 'rainbow clouds' light up Arctic skies for 3 days in a row
By Harry Baker published
In and around the Arctic Circle, stunning multicolor clouds have been shining in the sky for days on end. It is very unusual to see so many of these vibrant clouds over such a long period.
![A man standing infront of a projection of the ozone hole](https://cdn.mos.cms.futurecdn.net/9f7CUJCZm3BWwNXpu2euNd-320-80.jpg)
Controversial study suggesting ozone hole isn't recovering is skewed by bad data, experts say
By Harry Baker published
A new paper claims that the ozone hole above Antarctica is getting deeper, suggesting that it is not healing as expected. However, other researchers say the study's results are misleading.
![A map of the eastern tropical Pacific Ocean showing the difference from average sea temperature recorded in October 2023.](https://cdn.mos.cms.futurecdn.net/3TLPpiitHdgWArJ96iNuk6-320-80.png)
Big blob of hot water in Pacific may be making El Niño act weirdly
By Sascha Pare published
El Niño is in full swing and will likely remain "strong" this winter, but its effect on weather patterns in the U.S. depends on the behavior of an unusually warm blob in the western Pacific, experts say.
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