NINO3.4 Index
The NINO3.4 index is one of several El Niño/Southern Oscillation (ENSO) indicators based on sea surface temperatures.
NINO3.4 is the average sea surface temperature anomaly in the region bounded by 5°N to 5°S, from 170°W to 120°W. This region has large variability on El Niño time scales, and is close to the region where changes in local sea-surface temperature are important for shifting the large region of rainfall typically located in the far western Pacific.
An El Niño or La Niña event is identified if the 5-month running-average of the NINO3.4 index exceeds +0.4°C for El Niño or -0.4°C for La Niña for at least 6 consecutive months.
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Weather News
Farmers begin to restock but trader warns against 'panic-buying'
16:39 EST
Farmers are being urged not to rush to restock their properties despite above-average rainfall and lush conditions persisting across New South Wales.
Spencers Creek's latest one-metre snow depth in 14 years
15:09 EST
The 2020 snow season is now likely to feature one of Spencers Creek's latest one-metre natural snow depths on record.
