South Australia Sea Surface Temperature Anomalies
The sea surface temperature anomaly (SSTA) is the difference between the observed SST and the climatological SST. These anomalies are calculated on a weekly basis.
Positive SSTAs are usually correlated with increased regions of convection (cloudiness and rainfall) while negative SSTAs are usually correlated to reduced convection.
SSTAs can be used as an indicator of the phase of global climate fluctuations, such as the El Nino/Southern Oscillation (ENSO).
The data displayed in this map is the weekly average, centred on the date shown.
The nation's capital has rewritten the record books this morning, producing a May-like morning in February.
Tropical Cyclone Alfred has weakened to a tropical low as it nears landfall on the Gulf of Carpentaria's southern coast, but the Bureau of Meteorology warned the weather system remained powerful.
Some homes in the community of Borroloola on the Gulf of Carpentaria were evacuated with 74 residents sheltering elsewhere, as they waited for Cyclone Alfred to make landfall about sunrise on Tuesday.