Murraylands 28-day Rainfall Forecast
|Chance of rainfall within district|
25% to 50%
50% to 75%
The hemispheric long wave pattern has been relatively fast moving in recent weeks. There are five main troughs. Currently the most significant troughs are near the longitudes of South Africa, Western Australia, eastern Australia, the south Pacific, and South America.
Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 12 December to 16 December, 19 December to 23 December, and 1 January to 5 January. Rain events originating in the tropics and moving south are possible about 15 December to 19 December, 21 December to 25 December, and 29 December to 2 January.
Over Western Australia the strongest cold fronts should occur about 12 December to 16 December, 25 December to 29 December, and 1 January to 5 January.
This forecast is produced by a multi-model ensemble consisting of dynamical atmospheric models, which are forced by the latest observed atmosphere, ocean, land and ice conditions. The models are designed to simulate features of the real atmosphere, including the daily movement of long and short wave patterns in the Southern Hemisphere.
The future probability of rain in each district is estimated using output from the multi-model ensemble, combined with historical information about the difference between the model forecasts and observed rainfall.
In this deterministic framework the skill of the forecast tends to decrease with time, however the forecasts are updated daily to provide the latest estimates of rainfall probability out to 28 days.
Top End residents are unlikely to be relieved of the oppressive hot and humid build up conditions until Christmas, because the rain-bringing La Niña weather pattern is unlikely to eventuate in coming months, the Bureau of Meteorology has warned.
An international tourist has died and a woman has been injured after being hit by lightning while camping at Mt Warning, on the NSW north coast, police say.
The opening week of summer has been a hot and thundery mix in New South Wales and there is more to come.