Overall Green alert Flood for Nigeria
in Nigeria

Flood impact summary

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

GDACS ID: 1101523
Deaths: 4
Displaced: -
Region: Song
Countries: Nigeria
From - To 17 Jul - 20 Jul
Known identifiers for this event:


For more info on GDACS alert score click here.

Impact Assessement as of 20-07-2022

SENDAI Indicator A N Country Location Info
death 4 Nigeria Song
SENDAI Indicator B N Country Location Info
affected 1200 Nigeria Song
SENDAI Indicator C N Country Location Info
houses 148 Nigeria Song

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2022-07-02 / 2022-08-21  

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 0 deaths 09 Jul 2022 10 Jul 2022 GLOFAS
2 4 deaths and 500 displaced 17 Jul 2022 19 Jul 2022 GLOFAS
3 4 deaths 17 Jul 2022 20 Jul 2022 GLOFAS
4 0 deaths and 7389 displaced 27 Jul 2022 01 Aug 2022 GLOFAS
5 7 deaths 02 Aug 2022 04 Aug 2022 GLOFAS
6 0 deaths and 300 displaced 22 Jul 2022 14 Aug 2022 GLOFAS
7 0 deaths 13 Aug 2022 14 Aug 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.