Creepy Cloud Hovers Over Japan - UFO, Rare Meteor Event?

• When: December 2016 (exact date still being verified)
• Where: Fujisawa, Japan (near Tokyo)
• What: Identified - Strange cloud hovering

A very large, eerie looking cloud hovered mysteriously over Japan before disippating, according to local news sources:

Here are a few photographs taken from different angles:

This event is strangely similar to one earlier in the month in Wales, when a very rare fog dome was seen by many:

What do you think of these strange clouds? Do they indicate that the earth is going through some dramatic changes right now? Could the clouds in Japan be related to the Fukushima nuclear disaster? Have you ever seen creepy fog or clouds like this?

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