Overall Green Flood
in New Zealand

Flood impact summary

This flood is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID: 1103720
Deaths: 0
Displaced: 200
Region: Northland, Northland Region, Oakura
Countries: New Zealand
From - To 17 Jan - 19 Jan
Known identifiers for this event:

GDACS Score

For more info on GDACS score click here.

Impact Assessement as of 18-01-2026

SENDAI Indicator B N Country Location Info
affected 3 New Zealand Northland Region
displaced 200 New Zealand Northland Region
SENDAI Indicator C N Country Location Info
houses damaged 10 New Zealand Oakura

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2026-01-10 / 2026-01-26  

Saturday 10/01Sunday 11/01Monday 12/01Tuesday 13/01Wednesday 14/01Thursday 15/01Friday 16/01Saturday 17/01Sunday 18/01Monday 19/01Tuesday 20/01Wednesday 21/01Thursday 22/01Friday 23/01Saturday 24/01Sunday 25/01Monday 26/01

Timeline of revisions

For accessing reports of previous advisories, please click on the advisory number in the table below.

IDLevelPopulation affectedStart DateEnd DateSource
1 0 deaths and 200 displaced 17 Jan 2026 19 Jan 2026 GLOFAS

Flood polygons

This polygon (translucent blue with a blue border) is drawn by the analysts recording the flood event. It is meant to include all the areas reported as affected, by official source or the media. It does not represent the area actually under water.

Microwave flood detection

Flooded area, as detected in microwaves by the Global Flood Detection System of the JRC, based on NASA TRMM/GPM observations. This system has a rather low resolution (of 5-10km) but is not affected by clouds.
For more details, see http://www.unisdr.org/files/9622_LBNA23303ENC002.pdf.
The areas with a flood signal along the coast are an artefact of the system and should not be considered.

Optical Flood detection

Flooded area as detected in optical wavelengths by NASA/MODIS, known as "MODIS Flood Product". Data are made available by NASA GSFC Flood Mapping Project, http://oas.gsfc.nasa.gov/floodmap/index.html. Resolution of 250m, heavily affected by cloud cover.