The National Hurricane Center on Thursday forecast Tropical Storm Dexter to become extratropical, but continued to keep track of two developing Atlantic systems that could become the season’s next tropical depression or storm.

As of the NHC’s 8 a.m. tropical advisory, closer to the the U.S. but moving away was a weak area of low pressure a couple hundred miles off the coast of the southeastern United States producing limited shower and thunderstorm activity.

“Some slow tropical or subtropical development is possible over the weekend while the system moves northward to northeastward, remaining well off the east coast of the United States,” forecasters said. “By early next week, the low is expected to become extratropical, ending its chances for tropical development.”

The NHC gave the system a 30% chance to develop in the next seven days.

Farther east, though, a tropical wave that was headed to the central Atlantic also had disorganized shower activity.

“Environmental conditions are forecast to become more conducive for gradual development in a few days, and a tropical depression could form late this weekend or early next week while the system moves west-northwestward to northwestward across the central tropical and subtropical Atlantic,” forecasters said.

The NHC gave it a 10% chance to develop in the next two days and 60% in the next seven.

The next names on the 2025 Atlantic hurricane season list are Erin and Fernand.

The season’s fourth named storm continued to churn in the Atlantic as well. Tropical Storm Dexter, which formed in the Atlantic on Sunday night, remained no threat to land.

As of 5 a.m. Thursday, the center of Dexter was located about 425 miles south of Cape Race, Newfoundland moving east-northeast at 168 mph with maximum sustained winds that had grown to 50 mph. Tropical-storm-force winds extend out 175 miles.

“An east-northeast to northeast motion is expected during the next couple of days,” forecasters said, “Dexter is expected to strengthen as an extratropical low later today through Friday. The cyclone is forecast to weaken beginning Friday night and Saturday.”

Dexter became the fourth named storm following tropical storms Andrea, Barry and Chantal.

Before the start of hurricane season, the National Oceanic and Atmospheric Administration had forecast an expected 13 to 19 named storms for the year, of which 6 to 10 would grow into hurricanes. Three to five of those would develop into major hurricanes of Category 3 strength or higher.

The height of hurricane season runs from mid-August into October.

The entire six-month season runs June 1 to Nov. 30.

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