For example:
Thundersnow - mimics the inner workings of a normal thunderstorm by forming through the upward movement of humid air. It’s the combination of lower humid air and higher cooler air that cause lightning and thunderstorms. This is exactly why thundersnow is so rare, seeing as how warm lower ground temperatures aren’t usually present while it’s snowing.
Multi-colored Snow - On a freezing cold morning in 2010, citizens of Stavropol, Russia woke up to multi-colored snow lining their streets. It wasn’t toxic, but the experts warned that it wouldn’t be wise to ingest any of the snow as it was most likely contaminated by dust all the way from Africa. The dust reached dizzying heights in the upper atmosphere where it mingled in with normal snow clouds. This interaction is what caused the beautifully colored snow to fall. That wasn’t the first time it happened — in 1912, black snow fell over Alaska and Canada. The black color was thanks to volcanic ash and rocks that also mingled with snow clouds.
Derecho - In 2012, a massive and violent storm system made up of several thunderstorms and strong windsleft a trail of destruction across the Midwest and mid-Atlantic. This terrifying type of storm is called a derecho, and in this case the storm was upgraded to a “super derecho” due to its severity. The main cause of the super-storm was the intense heat experienced over the area combined with a ripple in the jet stream. The state of Virginia experienced a massive power outage — cables snapped like twigs, trucks tumbled right over like they were made of cardboard and 13 people were killed.Derechos are very rare across the mid-Atlantic, only occurring every four years or so. Another extremely destructive derecho occurred in the United States in 2009. The storm system traveled 1000 miles in one day, leaving several dead and even more injured. A terrifying 45 tornadoes hit the ground during this storm.
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