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: 1101249
Deaths: 1
Displaced: 100
Region: KwaZulu-Natal, Bloemhof, Christiana
Countries: South Africa
From - To 18 Jan - 20 Jan
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 21-01-2022

SENDAI Indicator A N Country Location Info
death 1 South Africa KwaZulu-Natal
SENDAI Indicator B N Country Location Info
displaced 50 South Africa Bloemhof
displaced 50 South Africa Christiana

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2022-01-01 / 2022-01-27  

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

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 7 deaths 08 Jan 2022 09 Jan 2022 GLOFAS
2 1 deaths and 70 displaced 15 Jan 2022 17 Jan 2022 GLOFAS
3 1 deaths and 100 displaced 18 Jan 2022 20 Jan 2022 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.