South Coast 28-day Rainfall Forecast

Sun
Mon
Tue
Wed
Thu
Fri
Sat
25
high
26
high
27
med
28
med
29
high
30
high
31
high
Nov 1
med
2
med
3
med
4
low
5
low
6
med
7
med
8
low
9
low
10
low
11
low
12
low
13
low
14
15
low
16
low
17
med
18
low
19
20
21
Chance of rainfall within district
nil
< 25%
low
25% to 50%
med
50% to 75%
high
≥ 75%

Issue Notes

The hemispheric long wave pattern has remained stable in recent weeks. There are four main troughs. Currently the most significant troughs are near the longitudes of South Africa, Western Australia, the south Pacific, South America, and the Atlantic Ocean.
Summary:
Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 31 October to 4 November, 12 November to 16 November, and 22 November to 26 November. Rain events originating in the tropics and moving south are possible about 29 October to 2 November, 7 November to 11 November, and 15 November to 19 November.
Over Western Australia the strongest cold fronts should occur about 29 October to 2 November, 14 November to 18 November, and 23 November to 27 November.

Issued Oct 24

Forecast Explanation

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.

Display Your Local Weather

Weather News

Summarising rain in Darwin so far this month

13:14 EDT

La Nina has already made its presence felt in Darwin, with this month already being the wettest October since 2010 - coincident with the last strong La Nina event.

October brings more rain for Victoria

12:25 EDT

Victoria has not escaped the unsettled weather that has impacted the southeast recently, as rainfall, strong winds and the odd storm have all featured in the past 24 hours.