Sun
Mon
Tue
Wed
Thu
Fri
Sat
11
med
12
med
13
14
15
low
16
med
17
low
18
low
19
low
20
med
21
low
22
low
23
high
24
high
25
high
26
high
27
low
28
low
29
med
Mar 1
med
2
high
3
high
4
high
5
med
6
med
7
med
8
high
9
high
| 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 five main troughs. Currently the most significant troughs are near the longitudes of the southwest Indian Ocean, Western Australia, New Zealand, the southeast Pacific, and the Atlantic Ocean.
Summary:
Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 4 March to 8 March, 9 March to 13 March, and 14 March to 18 March. Rain events originating in the tropics and moving south are possible about 21 February to 25 February, 2 March to 6 March, and 13 March to 17 March.
Over Western Australia the strongest cold fronts should occur about 21 February to 25 February, 29 February to 4 March, and 4 March to 8 March.
Issued Feb 9
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.