Overall Orange alert Flood
in Ethiopia

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: 1102308
Deaths: 53
Displaced: 347600
Region: Somali Region, Oromia Region, Afar
Countries: Ethiopia
From - To 01 Nov - 06 Dec
Known identifiers for this event: FL-2023-000229-ETH

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 27-11-2023

SENDAI Indicator A N Country Location Info
death 20 Ethiopia Somali Region
death 33 Ethiopia Somali Region
SENDAI Indicator B N Country Location Info
affected 67000 Ethiopia Oromia Region
affected 611000 Ethiopia -
displaced 1600 Ethiopia Oromia Region
displaced 12000 Ethiopia Somali Region
displaced 240000 Ethiopia Somali Region
displaced 81000 Ethiopia -
displaced 13000 Ethiopia Afar

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2023-10-25 / 2023-12-13  

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

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 53 deaths and 347600 displaced 01 Nov 2023 06 Dec 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.