Overall Green alert Flood
in Uganda

Flood impact summary

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

GDACS ID: 1102322
Deaths: 0
Displaced: 4335
Region: Butaleja District
Countries: Uganda
From - To 02 Nov - 13 Nov
Known identifiers for this event:


For more info on GDACS alert score click here.

Impact Assessement as of 17-11-2023

SENDAI Indicator B N Country Location Info
affected 500 Uganda Bweyale
affected 1550 Uganda Kilak
affected 5639 Uganda Arinyapi
affected 86 Uganda Arinyapi
affected 80 Uganda Bbaale
affected 668 Uganda Galiraya
affected 1 Uganda Galiraya
affected 37 Uganda Busaana
affected 2 Uganda Kakiri
displaced 2000 Uganda Elegu
displaced 8 Uganda Busaana
displaced 124 Uganda Galiraya
displaced 27 Uganda Bbaale
displaced 476 Uganda Arinyapi
displaced 500 Uganda Kilak
displaced 1000 Uganda Kimengo
displaced 200 Uganda Butaleja District
SENDAI Indicator C N Country Location Info
houses 5 Uganda Bweyale
houses 95 Uganda Bweyale

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2023-10-26 / 2023-11-20  

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 and 2000 displaced 02 Nov 2023 04 Nov 2023 GLOFAS
2 0 deaths and 1000 displaced 06 Nov 2023 08 Nov 2023 GLOFAS
3 0 deaths and 200 displaced 11 Nov 2023 13 Nov 2023 GLOFAS
4 0 deaths and 976 displaced 02 Nov 2023 04 Nov 2023 GLOFAS
5 0 deaths and 159 displaced 02 Nov 2023 12 Nov 2023 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.