Victoria Sea Surface Temperature
The sea surface temperature (SST) varies much more slowly than atmospheric temperatures due to the heat capacity of water. As such, the SSTs lag the atmospheric temperatures on a seasonal timescale by about 3 months. The lowest SSTs are usually observed in early Spring and the highest SSTs are observed in early Autumn.
In tropical regions, SSTs greater than 26°C are considered suitable for formation of tropical cyclones.
The data displayed in this map is the weekly average, centred on the date shown.
Aircraft companies are flat out dropping off food and supplies to Northern Territory communities stranded by continuing wet weather.
The Katherine River is set to flood as an active monsoon trough causes heavy rains and squally showers across the Northern Territory, registering the wettest day in five years.
The monsoon trough has redeveloped over northern Australia this week, bringing Darwin its heaviest rain five years.