New Zealand will feel the impacts of a ‘Very Strong’ El Niño event over spring and summer of 2026/27. Here’s what you need to ...
El Niño conditions persist in the tropical Pacific atmosphere and ocean, strengthening considerably since mid-winter. Impacts on New Zealand’s weather patterns have recently started to be felt and ...
The nitrate test included in SHMAK is a colorimetric test. You can order additional test kits from NIWA.
A New Zealand-led team has completed the fullest investigation to date into January’s eruption of the underwater Tongan volcano. Hunga-Tonga Hunga-Ha'apai (HT-HH) emitted the biggest atmospheric ...
The tables below show the probabilities (or percent chances) for each of three categories: above average, near average, and below average. In the absence of any forecast guidance there would be an ...
Researchers carrying out this year’s end-of-summer snowline and glacier survey saw retained snow on some glaciers, but no reversal in the overall trend of ice loss. “This year’s survey showed some ...
El Niño conditions persist in the tropical Pacific atmosphere and ocean, and by all measures the event has strengthened over the last month – including the strongest atmospheric measurements on record ...
El Niño conditions have now been reached in the tropical Pacific atmosphere and ocean, according to criteria assessed by Earth Sciences New Zealand. The event remains in its early stages; impacts on ...
NIWA’s annual end-of-summer snowline survey has revealed continued loss of snow and ice for New Zealand’s famous glaciers. End of summer snowline survey, Tasman Glacier. The 2023 survey was the 46th ...
Stories of tremendous forest fires, huge storm events, and suffocating heatwaves have dominated headlines over the past few years. We instinctively feel that our weather is getting wilder. Are we ...
A new NIWA-led study has found that climate change increased the amount of total rainfall during Cyclone Gabrielle by 10%. This additional rain fell during the most intense parts of the storm, ...
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