Overall Green alert 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: 1101790
Deaths: 21
Displaced: 65139
Region: Besut, Pasir Mas, Tumpat, Johor, Kelantan, Pahang, Perak, Terengganu
Countries: Malaysia
From - To 15 Dec - 20 Dec
Known identifiers for this event:


For more info on GDACS alert score click here.

Impact Assessement as of 23-12-2022

SENDAI Indicator A N Country Location Info
death 16 Malaysia Batang Kali
death 1 Malaysia Besut
death 1 Malaysia Pasir Mas
death 3 Malaysia Tumpat
SENDAI Indicator B N Country Location Info
displaced 53 Malaysia Johor
displaced 25353 Malaysia Kelantan
displaced 873 Malaysia Pahang
displaced 54 Malaysia Perak
displaced 38806 Malaysia Terengganu

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2022-12-08 / 2022-12-27  

Timeline of revisions

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

IDAlert ColorPopulation affectedStart DateEnd DateSource
1 16 deaths 15 Dec 2022 16 Dec 2022 GLOFAS
2 5 deaths and 65139 displaced 18 Dec 2022 20 Dec 2022 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.