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.
Now Temperature
At Darwin Ap
10:40 CST
32°C
25°C
Possible thunderstorm
Weather News
BOM warning as Cyclone Debbie intensifies; Queensland emergency services prepare for worst
11:57 EDT
Thousands of north Queenslanders are being evacuated as Cyclone Debbie bears down on the coast, bringing winds of up to 230 kilometres per hour and possibly a four-metre storm surge.
Cyclone Debbie: A quick guide for residents
11:53 EDT
Tropical Cyclone Debbie is just hours from reaching the northern Queensland coast.
Tropical Cyclone Debbie: Queenslanders preparing for worst cyclone since Yasi
11:26 EDT
As Tropical Cyclone Debbie strengthens off the coast near Townsville in north Queensland, residents are being warned to prepare for the worst storm to hit the state since Cyclone Yasi in 2011.
