This year’s hurricane season could make landfall on the U.S. East Coast early.

The hurricane season usually begins in the Atlantic Ocean on June 1, but for the past five years, powerful tropical storms have occurred long before the season “officially” begins, and as the Washington Post reports, the same thing seems to be this year. According to a bulletin issued by the U.S. National Hurricane Center (NHC), low pressure disturbances near the Bahamas could create conditions conducive to tropical storms.

This year's hurricane season could make landfall on the U.S. East Coast early.

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If it becomes a hurricane, it will be called Arthur, and it will mean that this year’s Atlantic hurricane season will officially begin two weeks earlier.

“A large depression area is expected to form a few hundred miles north of the Bahamas or near the end of this week or early this week,” the NHC statement explained. Environmental conditions appear to be conducive to the gradual development of the system, which could form a subtropical depression or storm this weekend as it moves northeast in the western Atlantic. “

The NHC says there is a 0 percent chance of a storm forming over the next two days, but a 70 percent chance of extending the timeline to five days. As a result, the storm season does seem to be coming earlier than expected.

There is a very clear trend here, which is the formation of atlantic storms once a year. Studies have shown that warming is the cause of increased storm activity earlier this year and the increase in storm intensity that eventually made landfall.

Over the past few decades, the range of atlantic hurricane seasons has also expanded dramatically. Nearly a century ago, the storm was expected to occur between June 15 and October 31. Now, the season runs from June 1st to November 30th. As has been seen over the past five years, the storm formation has now started beyond these dates, meaning that the official hurricane window may need to be adjusted further.