Overview
- Tropical Storm Dolly formed in the central Atlantic on Thursday and was reported with about 65 km/h sustained winds while moving west at roughly 38–39 km/h.
- Forecasters say strong vertical wind shear tied to the current El Niño should rapidly weaken or dissipate Dolly by Saturday, ending its brief life as a tropical storm.
- Models and analysts project the system’s remnant moisture will move westward and increase rainfall across the northeast Caribbean, including Puerto Rico, on Sunday and Monday.
- Mexican authorities have not issued watches or warnings because Dolly is distant and expected to weaken, and Mexico’s near-term rain forecast is being driven by local systems such as the Mexican monsoon and a separate low offshore Jalisco/Colima.
- Dolly is the fourth named storm of the 2026 Atlantic season and ended a more than two-week lull; officials urge residents in the northeast Caribbean to monitor official updates for changing rainfall or flood guidance.