Tropical Storm Dexter weakened slightly overnight but is expected to strengthen as a post-tropical cyclone in a couple of days, according to the latest advisory from the National Hurricane Center.
Dexter became the fourth named storm of the 2025 Atlantic hurricane season off the coast of North Carolina Aug. 3.
The tropical storm is expected to continue moving away from the United States but could bring increased surf and an increased risk for rip currents along the Atlantic coast.
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Dexter formed earlier than the historical average for the fourth storm of the season. On average, the fourth storm in the Atlantic forms Aug. 15. The first hurricane forms Aug. 11.
There have been no hurricanes in the Atlantic basin — which consists of the northern Atlantic, Gulf and Caribbean — so far this season.
Elsewhere in the tropics, forecasters are watching two other systems, including one off the southeastern coast of the U.S. and a tropical wave in the central Atlantic expected to become a tropical depression later this week or over the weekend.
Highlights on what Tropical Storm Dexter is doing now
Special note on the NHC cone: The forecast track shows the most likely path of the center of the storm. It does not illustrate the full width of the storm or its impacts, and the center of the storm is likely to travel outside the cone up to 33% of the time.
Location: 345 miles north of Bermuda
Maximum sustained winds: 4 mph
Movement: northeast at 12 mph
Pressure: 1,005 mb
Next advisory: 11 a.m.
Tropical Storm Dexter: Where is it and what's it doing?
At 5 a.m., the center of Tropical Storm Dexter was located near latitude 37.3 North, longitude 64.4 West.
Dexter is moving toward the northeast near 12 mph, and a gradual turn toward the east-northeast is expected during the next few days.
Maximum sustained winds have decreased to near 40 mph, with higher gusts. Tropical-storm-force winds extend outward up to 115 miles from the center.
Little change in strength is expected for the next day or so. Some re-strengthening is forecast in a couple of days as Dexter becomes an extratropical cyclone.
Spaghetti models for Tropical Storm Dexter
Special note about spaghetti models: Illustrations include an array of forecast tools and models, and not all are created equal. The hurricane center uses only the top four or five highest performing models to help make its forecasts.
Will Tropical Storm Dexter impact Florida, US?
While far from Florida, Dexter is expected to bring higher surf conditions of 2 to 4 feet, along with a moderate risk for rip currents, according to the National Weather Service Melbourne.
See map of watches, warnings issued for Florida, US
Where is Tropical Storm Dexter going?
Key messages from the National Hurricane Center: What you need to know about Tropical Storm Dexter
Dexter appears to be weakening as it battles wind shear.
Models now show it's expected to strengthen slightly as it interacts with a trough.
It's expected to become extra-tropical within the next 36 to 48 hours.
Current forecast: How strong could Tropical Storm Dexter get?
As of 5 a.m.: 40 mph
12 hours: 40 mph
24 hours: 40 mph
36 hours: 45 mph
48 hours: 50 mph (post tropical, extra tropical)
60 hours: 50 mph (post tropical, extra tropical)
72 hours: 50 mph (post tropical, extra tropical)
96 hours: 45 mph (post tropical, extra tropical)
120 hours: dissipated
Hurricane names for 2025 season
Here are the names for the 2025 Atlantic hurricane season, along with how to pronounce them:
Andrea(June 20)Barry(June 29)Chantal(July 5)Dexter: DEHK-ster (Aug. 3)
Erin: AIR-rin
Fernand: fair-NAHN
Gabrielle: ga-bree-ELL
Humberto: oom-BAIR-toh
Imelda: ee-MEHL-dah
Jerry: JEHR-ee
Karen: KAIR-ren
Lorenzo: loh-REN-zoh
Melissa: meh-LIH-suh
Nestor: NES-tor
Olga: OAL-guh
Pablo: PAHB-lo
Rebekah: reh-BEH-kuh
Sebastien: se-BAS-tee-en
Tanya: TAHN-yuh
Van: van
Wendy: WEN-dee
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This article originally appeared on Florida Times-Union: Tropical Storm Dexter: Expected impacts, map, spaghetti models
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