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Home › 28-day Rainfall Forecast › Central North Rainfall Forecast

Central North 28-day Rainfall Forecast

Sun
Mon
Tue
Wed
Thu
Fri
Sat
20
med
21
high
22
med
23
med
24
high
25
high
26
med
27
med
28
29
low
30
low
May 1
low
2
high
3
low
4
med
5
med
6
low
7
med
8
low
9
med
10
low
11
12
low
13
low
14
15
low
16
low
17
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 six main troughs. Currently the most significant troughs are near the longitudes of South Africa, the Indian Ocean, Western Australia, New Zealand, 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 24 April to 28 April, 3 May to 7 May, and 22 May to 26 May. Rain events originating in the tropics and moving south are possible about 12 May to 16 May, 17 May to 21 May, and 21 May to 25 May.
Over Western Australia the strongest cold fronts should occur about 24 April to 28 April, 16 May to 20 May, and 22 May to 26 May.

Issued Apr 19

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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