Overall Orange alert Flood
in Democratic Republic of Congo

Flood impact summary

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

GDACS ID: 1101981
Deaths: 472
Displaced: 3000
Region: Kalehe
Countries: Democratic Republic of Congo
From - To 04 May - 06 May
Known identifiers for this event: FL-2023-000067-COD


For more info on GDACS alert score click here.

Impact Assessement as of 08-05-2023

SENDAI Indicator A N Country Location Info
death 72 Democratic Republic of Congo Kalehe
death 400 Democratic Republic of Congo Kalehe
SENDAI Indicator B N Country Location Info
displaced 3000 Democratic Republic of Congo Kalehe
SENDAI Indicator C N Country Location Info
houses 1200 Democratic Republic of Congo Kalehe
houses 500 Democratic Republic of Congo Kalehe
houses 1800 Democratic Republic of Congo Kalehe

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2023-04-24 / 2023-05-17  

Timeline of revisions

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

IDAlert ColorPopulation affectedStart DateEnd DateSource
1 472 deaths and 3000 displaced 04 May 2023 06 May 2023 GLOFAS
2 0 deaths and 300 displaced 01 May 2023 08 May 2023 GLOFAS
3 0 deaths 03 May 2023 08 May 2023 GLOFAS
4 6 deaths 08 May 2023 10 May 2023 GLOFAS
5 0 deaths 05 May 2023 07 May 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.