A mysterious vortex described as a "portal to hell" has opened up in a lake in the US.?The 75ft-wide spinning vortex has occurred again at Lake Berryessa, the largest lake in Napa County, California.?
When the water levels get too high, excess water is sucked into a huge hole which creates the baffling effect known by locals as the 'Glory Hole".?It is like a gigantic bathtub and the vortex is the spinning whirlpool you see in the water when you pull the plug.
According to a report by The Mirror, the vortex was spotted again on the surface of the lake, which happens when water rises above 15ft. Before this, the hole opened up in 2017 after heavy rain poured down for the first time since 2006, and again in 2019, which attracted countless curious onlookers.?
A Twitter user shared pictures of the rare phenomenon and wrote, "Here¡¯s the glory hole at Lake Berryessa. It¡¯s about 20 miles from my house. Fun boarding and trout fishing. Even though blocked from boats, still ominous.¡±
The vortex happens due to a huge spillway which was built as an alternative to the more commonly used chute by engineers in the 1950s to control the flow of water.?
The drain-like feature is located near the dam on the southeast side of the reservoir, and is capable of swallowing around 1,360 cubic metres of water (48,000 cubic feet) per second when it¡¯s over capacity.?
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