Overall Green alert Flood
in New Zealand

Event summary

Flood can have a low humanitarian impact based on the magnitude, exposed population and vulnerability.

GDACS ID FL 1103245
Death: 0
Displaced: -
Countries: New Zealand
From - To 01 May - 03 May

GDACS Score

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Virtual OSOCC
Meteo assessment
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Analytical products
New Zealand - Severe weather (ECHO 07 May 2025)Fri, 02 May 2025 10:52

  • Severe storms have hit New Zealand, bringing heavy rainfall, strong winds, and flooding, particularly to the southern island. The resulting disruption has been significant, with major traffic congestion, power outages, and school closures reported.
  • According to media as at 2 May, in Christchurch and Wellington, intense rainfall has overwhelmed river systems and storm drains, forcing road closures and evacuations. Several schools have been closed due to unsafe travel conditions or flooding.
  • As at 2 May, a state of local emergency remains in effect for Christchurch City in the Canterbury region, South Island.
  • Over the next 48 hours, more moderate rain is expected over the southern part of both the South Island (Invercargill) and the North Island (Wellington).
New Zealand, Early May 2025Local media reported severe weather including flooding in areas of New Zealand in early May 2025.Thu 1 May 2025Provided by Copernicus EMS GloFAS
Detailed event map. European Union, 2025. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Moving towns: The complex realities of managed retreat 5/6/2025 9:43:00 PM.

Analysis : With large parts of New Zealand having recently been pummelled by ex-tropical Cyclone Tam and ongoing bouts of heavy rain, it is important to remember that natural hazards have long shaped our cities. Two townships in particular
...(more)
Moving towns: The complex realities of managed retreat 5/6/2025 9:38:00 PM.

Analysis : With large parts of New Zealand having recently been pummelled by ex-tropical Cyclone Tam and ongoing bouts of heavy rain, it is important to remember that natural hazards have long shaped our cities. Two townships in particular
...(more)
Moving Towns: 4 Stories Of Communities Facing Relocation Show The Comp.. 5/6/2025 7:36:00 PM.

- The Conversation) With large parts of New Zealand having recently been pummelled by ex-tropical Cyclone Tam and ongoing bouts of heavy rain , it is important to remember that natural hazards have long shaped our cities. Two townships in p
...(more)
Moving towns: 4 stories of communities facing relocation show the comp.. 5/6/2025 7:31:00 PM.

Date: 2025-05-06 19:29 Author: Stacy Vallis, Lecturer in Architecture and Emerging Technologies, Auckland University of Technology Original article: https://theconversation.com/moving-towns-4-stories-of-communities-facing-relocation-show-th
...(more)

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Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (37), (2), NASA (4), WMO (1), INFORM (2),