In addition to significant humanitarian impacts, hurricane #Helene also disrupted both the ocean and terrestrial ecosystems as it passed over the Gulf of Mexico and into Georgia. #Sentinel3 provides a clear view of the state of the ocean before (23rd Sept) and after (27th Sept) with massive sediment re-suspension on the shelf, massive fluxes from land to ocean, and even the modification of coastal sandbars in places. Residents in Florida are now preparing for #Milton, a powerful hurricane expected to make landfall in the state very soon.