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North East 28-day Rainfall Forecast

Sun
Mon
Tue
Wed
Thu
Fri
Sat
24
high
25
high
26
high
27
med
28
med
29
high
30
med
31
med
Aug 1
med
2
3
low
4
high
5
med
6
low
7
med
8
med
9
high
10
high
11
med
12
low
13
med
14
med
15
med
16
low
17
low
18
med
19
low
20
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 slow moving in recent weeks. There are five main troughs. Currently the most significant troughs are near the longitudes of the southwest Indian Ocean, Western Australia, eastern Australia, the south 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 1 August to 5 August, 11 August to 15 August, and 21 August to 25 August. Rain events originating in the tropics and moving south are possible about 19 August to 23 August.
Over Western Australia the strongest cold fronts should occur about 28 July to 1 August, 2 August to 6 August, and 7 August to 11 August.

Issued Jul 23

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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Record hot June for the world

ABC image 15:16 EST Last month was the hottest ever June worldwide, according to the National Oceanic Atmospheric Administration in the US, which tracks climate data over ocean and land.

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