Cyclone Gabrielle unleashed torrential rain and record floods across Hawke's Bay and Tairāwhiti in the second week of February. In the days that followed, river flow experts and hazard scientists ...

Gisborne, Hawke’s Bay, Wairarapa Probabilities are assigned in three categories: above average, near average, and below average. Temperatures are very likely to be above average (60% chance). Rainfall ...

Regional predictions for July – September 2024 The tables below show the probabilities (or percent chances) for each of three categories: above average, near average, and below average. In the absence ...

Regional predictions for June – August 2024 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 ...

El Niño Southern Oscillation: what is it? El Niño and La Niña are opposite phases of a naturally occurring global climate cycle known as the El Niño Southern Oscillation, or ENSO for short. ENSO ...

Kevin Mackay, Marine Geologist / TESMaP voyage leader. Kevin in the seismic lab at Greta Point looking at the Hunga Tonga-Hunga Ha'apai volcano 3D map. [Photo: NIWA-Nippon Foundation TESMaP / Rebekah ...

NIWA's Crispin Middleton is part of the team monitoring the caulerpa infestation. Photo: Irene Middleton, NIWA. NIWA is part of a multi-agency biosecurity response to an invasive seaweed discovered at ...

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 ...

Scientists have found a new ghost shark that lives exclusively in the deep waters of Australia and New Zealand. The Australasian Narrow-nosed Spookfish was described by NIWA Fisheries Scientist Dr ...

New maps from NIWA and the Deep South National Science Challenge show areas across Aotearoa New Zealand that could be inundated by extreme coastal flooding. They show a large storm-tide with the ...

Tropical cyclone outlook summary for New Zealand On average, at least one ex-TC passes within 550 km of New Zealand each year. This season, the risk is considered normal-elevated. If an ex-TC tracks ...

Outlook Summary El Niño has officially arrived. A majority of NIWA’s criteria for classifying an El Niño event were satisfied during September. In particular, the Southern Oscillation Index was firmly ...