Overall Green alert Flood for Algeria
in Algeria

Flood impact summary

Flood Algeria is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

GDACS ID: 1101167
Deaths: 3
Displaced: -
Region: El Hamadna, Mazouna, Bologhine, Chaiba, El Hamel
Countries: Algeria
From - To 06 Nov - 10 Nov
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 16-11-2021

SENDAI Indicator A N Country Location Info
death 3 Algeria Bologhine
SENDAI Indicator B N Country Location Info
rescued 1 Algeria El Hamadna
rescued 4 Algeria Mazouna
rescued 1 Algeria El Hamel
SENDAI Indicator C N Country Location Info
houses 1 Algeria Bologhine
houses 30 Algeria Chaiba

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2021-10-30 / 2021-11-17  

Saturday 30/10Sunday 31/10Monday 01/11Tuesday 02/11Wednesday 03/11Thursday 04/11Friday 05/11Saturday 06/11Sunday 07/11Monday 08/11Tuesday 09/11Wednesday 10/11Thursday 11/11Friday 12/11Saturday 13/11Sunday 14/11Monday 15/11Tuesday 16/11Wednesday 17/11

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 06 Nov 2021 10 Nov 2021 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.