Reef Health Update | 5 March 2026
Reef Health Updates by Great Barrier Reef Marine Park Authority
Episode notes
A tropical low is developing in the Coral Sea off the east coast of North Queensland. The Bureau of Meteorology advises there is currently a low to moderate chance of it developing into a tropical cyclone. Increased wave action from this system may affect some shallow reef habitats.
Monsoonal activity and the tropical low are expected to bring heavy rainfall to most Marine Park catchments. This increases the risk of flooding and freshwater runoff into the Marine Park.
SeaWeek 2026 is being celebrated from 28 February to 8 March, with this year’s theme “Caring for Planet Water”. The week highlights the importance of ocean literacy and the role healthy oceans play in regulating climate, supporting biodiversity and sustaining communities. It’s a timely reminder of the connection between weather, water quality and Reef health, and the sha ...