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Midlands 28-day Rainfall Forecast

Sun
Mon
Tue
Wed
Thu
Fri
Sat
8
9
10
low
11
high
12
13
med
14
low
15
high
16
high
17
18
19
low
20
med
21
low
22
23
24
med
25
med
26
low
27
low
28
low
29
high
Mar 1
high
2
high
3
low
4
high
5
med
6
med
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 been relatively fast moving in recent weeks. There are five main troughs. Currently the most significant troughs are near the longitudes of the southwest Indian Ocean, eastern 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 13 February to 17 February, 2 March to 6 March, and 9 March to 13 March. Rain events originating in the tropics and moving south are possible about 17 February to 21 February, 7 March to 11 March, and 12 March to 16 March.
Over Western Australia the strongest cold fronts should occur about 13 February to 17 February, 2 March to 6 March, and 9 March to 13 March.

Issued Feb 7

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.

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