Pattern – which will increase chance of hot and dry summer – announced as total fire bans declared for greater Sydney region
A positive IOD usually results in decreased spring rainfall for central and south-east Australia. The climate phenomenon usually begins in late autumn or winter.
According to the Bureau, the risk of a significant fire danger season in south-east Australia is significantly higher after an El Niño year, particularly when combined with a positive IOD.– the cooler and wetter phase of the El Niño-Southern Oscillation. Those conditions have encouraged large amounts of grass and vegetation to grow that could become fuel for fires.showing increased risk of bushfires over large parts of Queensland and NSW and parts of Victoria and the Northern Territory.
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