THE NHC SAID: We continue to monitor two other areas for tropical development in the Tropical Atlantic. One has a 70%
and the other 40% chance in the next 7-days. Check back for updates on these systems throughout the week into the weekend at http://hurricanes.gov
Disturbance 1: 70% Chance of Cyclone Formation in 7 Days
As of 8:00 PM EDT Wed Aug 20 2025…
Near the Leeward Islands in the Tropical Atlantic:
A tropical wave located several hundred miles east of the Leeward Islands is producing a broad area of disorganized showers and thunderstorms. Environmental conditions appear conducive for gradual development of this system, and a tropical depression is likely to form by this weekend while it moves near or to the north of the northern Leeward Islands.
Formation chance through 48 hours…low… 10 percent.
Formation chance through 7 days…high…70 percent.Disturbance 2: 40% Chance of Cyclone Formation in 7 DaysAs of 8:00 PM EDT Wed Aug 20 2025…Eastern Tropical Atlantic (AL99):
A tropical wave located several hundred miles southwest of the Cabo Verde Islands continues to produce a concentrated area of showers and thunderstorms. Earlier satellite-derived surface wind data depicted that the system does not have a well-defined center.
Environmental conditions appear marginally favorable for additional development over the next day or so while the system moves west-southwestward at around 15 mph and a short-lived tropical depression could form. By the end of the week, environmental conditions are expected to become unfavorable for further development.
- Formation chance through 48 hours…medium…40 percent.
- Formation chance through 7 days…medium…40 percent.
