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Hunter 28-day Rainfall Forecast

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

Issued Feb 26

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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