New South Wales/ACT 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.
A low pressure system which has drenched Perth, the South West and parts of the Wheatbelt has farmers rejoicing.
Powerful thunderstorms have been drenching southwestern Australia, with some locations recording their wettest day in over a decade.
Weather forecasters are predicting snow across Tasmania over the weekend and possible snow in Hobart for the first time since 1986.