Residents of the American town of Sioux Falls thought that the apocalypse was close when they saw a strange sky above their heads. After a strong storm wind, the sky over the city turned green. Its cause is not a tornado, as many thought at first.
The sky in the American town of Sioux Falls turned green. This happened after a strong wind, which many residents mistook for a tornado. According to the US National Weather Service, the culprit is derecho. This is a strong storm wind, the air in which moves at great speed – not in the form of a whirlwind, as in a tornado, but in a straight line. Such a wind lasts several hours (but can exceed 10 hours), and covers a very long distance – more than 1000 km.
A strong derecho swept through several states at a speed of 44 meters per second, and reached the town of Sioux Falls at about five in the evening. The wind was so strong that it deprived 26,000 homes of electricity. Immediately after a strong “wave” of the storm, residents saw a green sky – an unusual phenomenon lasted about 10-20 minutes, but many managed to photograph it.
According to experts, the green sky is a completely natural, albeit rare, phenomenon. This happens due to the large amount of water in the clouds, and also depends on the time of day: “If the sky is illuminated by the red light of the setting sun, the clouds and the sky appear green – which is why sometimes the sky appears greenish during a thunderstorm,” meteorologist Corey Martin said.
Due to the powerful derecho, several floods were registered in the Midwest due to the large amount of rainfall. In addition, residents of the city of Timber Lake reported that they had a huge hail. Here are some videos from locals:
Source: – translated specially for fishki.net
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