This would be a good indicator to head indoors, or at least try and catch some cover while you can. If the wind switches and there are visible storm clouds above you, you’re probably going to get stuck in a random, violent storm.
Dead Fish Washing Up
If there are dead fish washing up on a beach or riverbank, there is most likely something inorganic in the water causing this. Like the aforementioned point about factory runoff and human waste causing fish to evacuate previously active areas, if dead fish are washing up, that means the problem is likely much more sudden and sinister than other circumstances.
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