Overall Green alert Flood for Angola
in Angola

Flood impact summary

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

GDACS ID: 1100836
Deaths: 15
Displaced: 8165
Region: Sumbe, Luanda
Countries: Angola
From - To 16 Apr - 20 Apr
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 20-04-2021

SENDAI Indicator A N Country Location Info
death 1 Angola Sumbe
death 14 Angola Luanda
SENDAI Indicator B N Country Location Info
displaced 8165 Angola Luanda
injured 2 Angola Sumbe
injured 2 Angola Luanda
SENDAI Indicator C N Country Location Info
houses 1617 Angola Luanda

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2021-04-09 / 2021-04-27  

Friday 09/04Saturday 10/04Sunday 11/04Monday 12/04Tuesday 13/04Wednesday 14/04Thursday 15/04Friday 16/04Saturday 17/04Sunday 18/04Monday 19/04Tuesday 20/04Wednesday 21/04Thursday 22/04Friday 23/04Saturday 24/04Sunday 25/04Monday 26/04Tuesday 27/04

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 15 deaths and 8165 displaced 16 Apr 2021 20 Apr 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.