# Tropical Storm Dolly weakens to a tropical wave > Live situation record from CLSTR: https://clstr.news/situations/atlantic-tropical-cyclone-development > Updated: 2026-08-28T11:31:24.000Z. Sources: 127. Developments: 3. Tropical Storm Dolly, the fourth named system of the 2026 Atlantic hurricane season, has degraded into an open tropical wave as it moves westward across the central Atlantic. The National Hurricane Center reports that the system lost its closed circulation due to hostile environmental conditions, including significant wind shear and dry air. It is currently moving at approximately 22 to 25 mph. While the storm no longer maintains tropical storm strength, its remnants continue to pose a weather threat. The National Hurricane Center warns that associated moisture could bring heavy rainfall and potential flash flooding to the Leeward Islands, the Virgin Islands, Puerto Rico, and Hispaniola. In Puerto Rico, these rains may provide relief to areas experiencing extreme drought, though the risk of flash flooding in higher terrain remains. In the Dominican Republic, the system is expected to act as a low-pressure area north of the country, creating atmospheric instability. The Dominican Institute of Meteorology (Indomet) forecasts that the tropical wave could bring between 50 and 75 millimeters of rain to the country, with effects potentially lasting from Sunday through Tuesday. This precipitation is expected to affect various regions, including the northeast, southeast, and the Central Cordillera. In response, the Emergency Operations Center (COE) has activated contingency plans to prepare for potential flooding and to mobilize resources. ## Claims - Dolly has maximum sustained winds of 65 km/h (40 mph). (disputed by 13 sources) - Tropical Storm Dolly has degraded to an open tropical wave while moving west. (disputed by 8 sources) - The storm is moving west at approximately 39 km/h (24 mph). (corroborated by 13 sources) - Dolly is the fourth named storm of the 2026 Atlantic hurricane season. (corroborated by 13 sources) - Forecasters predict the system will weaken into a tropical wave before reaching the Leeward Islands. (corroborated by 11 sources) - Heavy rainfall associated with the storm could affect the Leeward Islands between Saturday and Sunday. (corroborated by 9 sources) - Rainfall from the system may reach Puerto Rico and Hispaniola between Sunday and Monday. (corroborated by 9 sources) - Dolly was located approximately 2,505 kilometres east of the Leeward Islands. (corroborated by 7 sources) - There are currently no coastal watches or warnings in effect for the storm. (corroborated by 6 sources) - Heavy rains could cause flash flooding, particularly in elevated areas of the Lesser Antilles. (corroborated by 6 sources) ## Timeline ### 2026-08-28: Tropical Storm Dolly degrades to tropical wave, threatening Caribbean with heavy rain Tropical Storm Dolly has degraded into an open tropical wave. Its remnants are expected to bring heavy rainfall and potential flash flooding to the Leeward Islands, Puerto Rico, and Hispaniola. 37 sources. https://clstr.news/cluster/tropical-storm-dolly-weakens-to-a-tropical-wave-moving-toward-the-caribbean ### 2026-08-26: Tropical Storm Dolly forms in central Atlantic Tropical Storm Dolly has formed in the central Atlantic, moving west at 39 km/h. Heavy rains may affect the Leeward Islands this weekend, followed by Puerto Rico and Hispaniola early next week. 99 sources. https://clstr.news/cluster/atlantic-tropical-storm-expected-to-be-named-dolly ### 2026-08-25: Atlantic tropical disturbance Invest 96L monitored for development Forecasters are tracking Invest 96L in the Atlantic, which could develop into Tropical Storm Dolly. A strengthening El Niño is expected to contribute to a below-normal 2026 hurricane season. 8 sources. https://clstr.news/cluster/atlantic-tropical-disturbance-invest-96l-shows-high-development-potential --- Cite as: Tropical Storm Dolly weakens to a tropical wave. CLSTR, https://clstr.news/situations/atlantic-tropical-cyclone-development