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Central Tablelands 28-day Rainfall Forecast

Sun
Mon
Tue
Wed
Thu
Fri
Sat
26
high
27
high
28
high
29
30
low
31
low
Jun 1
2
3
low
4
low
5
low
6
low
7
low
8
high
9
med
10
med
11
12
med
13
14
low
15
low
16
low
17
low
18
low
19
low
20
21
med
22
low
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 South Africa, the Indian Ocean, New Zealand, the south Pacific, and the southeast Pacific.
Summary:
Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 3 June to 7 June, 8 June to 12 June, and 20 June to 24 June. Rain events originating in the tropics and moving south are possible about 8 June to 12 June, and 25 June to 29 June.
Over Western Australia the strongest cold fronts should occur about 2 June to 6 June, 8 June to 12 June, and 12 June to 16 June.

Issued May 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.

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