Tropical Storm Dexter 2025

Live tracking map, satellite images and forecasts of Tropical Storm Dexter 2025 in the northwestern Atlantic Ocean. Current wind speed 40mph. Max 45mph.

Dexter appears to be weakening. The low-level circulation has become totally exposed this morning (5 August)- a consequence of continued strong vertical wind shear. Satellite intensity estimates have fallen so the initial wind speed is reduced to 40 mph (35 knots). Little change is expected for the next day or so as Dexter battles the shear. While normally the storm would just decay after the waters become cooler in a couple days, most models are now showing re-intensification due to a favorable trough interaction. This was first shown by the ECMWF yesterday (4 August), and now other models are on board. The short-term part of the forecast was lowered based on the initial wind speed, and little change was made to the longer-term intensities.

The storm continues moving east-northeastward at about 10 mph (10 knots). An east-northeast to northeast track is likely for the next couple of days due to mid-latitude westerly flow. The aforementioned trough interaction should cause a faster forward motion in a few days. The new forecast is similar to the previous one, mostly ignoring the slow GFS solution. Extratropical transition is expected between 36–48 hours, and the low is forecast to decay into a trough in roughly 4–5 days.