Hypercane
With a name like hypercane, you might expect extreme results. A hypercane is a fictitious cyclone that puts real hurricanes to shame. According to the concept of a hypercane, if the ocean were to get overheated due to climate change or something similar to a large volcanic eruption, the environment would be favorable for the development of a cyclone that extended into the upper stratosphere. This is not what typical hurricanes do.
A hypercane would have winds that were greater than 500 mph. They may potentially last for weeks since the interior pressure would be so low that they would not degrade as soon as other hurricanes. It would likely be the size of the continent of North America and be able to destroy the ozone layer.
A storm like this might have contributed to the dinosaurs' extinction after the meteor hit. And even though the circumstances are not right for them to emerge spontaneously right now, anything could happen in the future.