Wimmera 28-day Rainfall Forecast
low
med
med
low
low
low
low
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 six main troughs. Currently the most significant troughs are near the longitudes of South Africa, the southwest Indian Ocean, Western Australia, eastern Australia, New Zealand, the southeast Pacific, and South America.
Summary:
Over southern and eastern Australia the cold front events with potential to bring widespread rain are now expected about 1 February to 5 February, 6 February to 10 February, and 15 February to 19 February. Rain events originating in the tropics and moving south are possible about 9 February to 13 February, and 16 February to 20 February.
Over Western Australia the strongest cold fronts should occur about 31 January to 4 February, 7 February to 11 February, and 14 February to 18 February.
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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Weather News
A Stormy Australia Day Ahead for the East and North
15:24 EDT
Australia Day will be a stormy one for much of northern and eastern Australia as a deep trough brings sparky skies.
Queensland's overnight rainfall celebrated in some communities with more rain forecast for the state's north-west
14:43 EDT
Queensland's outback communities are celebrating much-needed rainfall, with some towns recording their biggest downpours in almost 12 months.
Flash flooding likely as monsoonal low brings days of rain to north-west Queensland
11:38 EDT
Queensland's north-west is expected to get days of storms which are likely to cause flash flooding, bringing new hope to some graziers who've been waiting years for regular falls.
