Overall Green alert Flood for South Africa
in South Africa

Flood impact summary

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

GDACS ID: 1100680
Deaths: 4
Displaced: -
Region: Gauteng, KwaZulu-Natal
Countries: South Africa
From - To 20 Nov - 22 Nov
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 20-11-2020

SENDAI Indicator A N Country Location Info
death 3 South Africa Gauteng
death 1 South Africa KwaZulu-Natal
SENDAI Indicator D N Country Location Info
bridges damaged - South Africa Gauteng
roads - South Africa Gauteng, KwaZulu-Natal

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2020-11-13 / 2020-11-29  

Friday 13/11Saturday 14/11Sunday 15/11Monday 16/11Tuesday 17/11Wednesday 18/11Thursday 19/11Friday 20/11Saturday 21/11Sunday 22/11Monday 23/11Tuesday 24/11Wednesday 25/11Thursday 26/11Friday 27/11Saturday 28/11Sunday 29/11

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 4 deaths 20 Nov 2020 22 Nov 2020 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.