Overall Green Flood
in Malaysia

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: 1103884
Deaths: 0
Displaced: 677
Region: Johor, Kedah, Sabah, Beaufort, Nabawan
Countries: Malaysia
From - To 16 May - 22 May
Known identifiers for this event:

GDACS Score

For more info on GDACS score click here.

Impact Assessement as of 22-05-2026

SENDAI Indicator B N Country Location Info
affected 3000 Malaysia Nabawan
displaced 294 Malaysia Pontian District
displaced 47 Malaysia Kuala Muda
displaced 336 Malaysia Beaufort

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2026-05-09 / 2026-05-29  

Saturday 09/05Sunday 10/05Monday 11/05Tuesday 12/05Wednesday 13/05Thursday 14/05Friday 15/05Saturday 16/05Sunday 17/05Monday 18/05Tuesday 19/05Wednesday 20/05Thursday 21/05Friday 22/05Saturday 23/05Sunday 24/05Monday 25/05Tuesday 26/05Wednesday 27/05Thursday 28/05Friday 29/05

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 341 displaced 16 May 2026 18 May 2026 GLOFAS
2 0 deaths and 336 displaced 18 May 2026 22 May 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.