Hurricane Laura reportedly caused the Mississippi River to flow backward

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United Cajun Navy responds to victims of Hurricane Laura

Laura roared ashore as a category 4 hurricane; Todd Terrell, president of the United Cajun Navy, joins Neil Cavuto with insight on 'Your World.'

Hurricane Laura has weakened to a depression, but not before causing the Mighty Mississippi River to flow backward in Louisiana earlier this week, according to a report.

Chris Dier posted on Twitter a video of the unique occurrence, which happened around 4 p.m. Wednesday in Arabi, a suburb of New Orleans.

"Hurricane Laura is forcing the Mississippi to follow north instead of south," he wrote. "Barges are now having to fight these tides as they go downriver. Surreal."

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The storm was located about 155 miles south of Lake Charles, La., around 4 p.m. CT Wednesday with maximum sustained winds of 145 mph, according to the National Weather Service (NWS). It failed to hit New Orleans directly later but still appeared to cause the unlikely phenomenon.

John Lewis, a research associate professor at the Tulane ByWater Institute, responded to the post, saying the top of the river likely got pushed by the wind -- because the surge impacts were not severe enough to cause a reversal of flow.

This GOES-16 GeoColor satellite image taken Wednesday, Aug. 26, 2020, at 2:40 p.m. EDT., and provided by NOAA, shows Hurricane Laura over the Gulf of Mexico. (NOAA via AP)

He said his understanding was that: "storm surge slows the rate at which the river drains, so the increase in depth is sourced from water flowing from upriver, which then slows and starts to stack up. But the river is a very powerful force and doesn't 'reverse' fully very easily."

Louisiana Democratic Gov. John Bel Edwards told Fox News' "Your World" on Wednesday that Hurricane Laura was potentially the strongest storm to hit the southwestern part of the state in more than six decades.

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"Things are very, very serious," Edwards told host Neil Cavuto. "We have a storm that’s a Category 4. It’s going to make landfall just after midnight. It continues to grow in size and intensity and quite frankly the storm surge is going to be a huge threat to life and, in fact, the National Weather Service took the unprecedented step of saying the storm surge is going to be unsurvivable."

The Mississippi River also flowed backward during Hurricane Katrina in 2005 and Hurricane Isaac in 2012, WLBT-TV of Jackson, Miss., reported.

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Previously, a series of earthquakes near Missouri caused a "fluvial tsunami" in the river back in 1812, leading it to run backward for several hours, according to History.com. The tremors were the most powerful in U.S. history.

Fox News' Charles Creitz contributed to this report