Overall Green alert Flood
in Indonesia

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: 1101824
Deaths: 3
Displaced: 10053
Region: Bireuen Regency, Deli Serdang
Countries: Indonesia
From - To 21 Jan - 23 Jan
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 24-01-2023

SENDAI Indicator A N Country Location Info
death 1 Indonesia -
death 2 Indonesia -
SENDAI Indicator B N Country Location Info
affected 19266 Indonesia -
affected 44477 Indonesia -
affected 1232 Indonesia -
affected 308 Indonesia -
affected 13619 Indonesia Bireuen Regency
affected 3696 Indonesia -
affected 4580 Indonesia -
affected 1120 Indonesia Deli Serdang
affected 7500 Indonesia -
displaced 3750 Indonesia -
displaced 90 Indonesia -
displaced 2311 Indonesia -
displaced 908 Indonesia -
displaced 2994 Indonesia -
SENDAI Indicator C N Country Location Info
houses 4639 Indonesia -
houses 595 Indonesia -
houses 5473 Indonesia Bireuen Regency
houses 1095 Indonesia -
houses 1109 Indonesia -
houses 1500 Indonesia -

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2023-01-14 / 2023-02-13  

Saturday 14/01Sunday 15/01Monday 16/01Tuesday 17/01Wednesday 18/01Thursday 19/01Friday 20/01Saturday 21/01Sunday 22/01Monday 23/01Tuesday 24/01Wednesday 25/01Thursday 26/01Friday 27/01Saturday 28/01Sunday 29/01Monday 30/01Tuesday 31/01Wednesday 01/02Thursday 02/02Friday 03/02Saturday 04/02Sunday 05/02Monday 06/02Tuesday 07/02Wednesday 08/02Thursday 09/02Friday 10/02Saturday 11/02Sunday 12/02Monday 13/02

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 3 deaths and 10053 displaced 21 Jan 2023 23 Jan 2023 GLOFAS
2 4 deaths and 1021 displaced 27 Jan 2023 29 Jan 2023 GLOFAS
3 0 deaths 26 Jan 2023 31 Jan 2023 GLOFAS
4 2 deaths 01 Feb 2023 03 Feb 2023 GLOFAS
5 3 deaths 04 Feb 2023 06 Feb 2023 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.