Overall Orange alert Flood
in Kenya

Flood impact summary

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

GDACS ID: 1102604
Deaths: 219
Displaced: 206000
Region: Nairobi, Nairobi County
Countries: Kenya
From - To 12 Apr - 06 May
Known identifiers for this event: FL-2024-000065-KEN

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 28-04-2024

SENDAI Indicator A N Country Location Info
death 219 Kenya Nairobi, Nairobi County
missing 72 Kenya Nairobi, Nairobi County
SENDAI Indicator B N Country Location Info
affected 223198 Kenya Nairobi, Nairobi County
displaced 206000 Kenya Nairobi County
injured 169 Kenya Nairobi, Nairobi County

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2024-04-05 / 2024-05-13  

Friday 05/04Saturday 06/04Sunday 07/04Monday 08/04Tuesday 09/04Wednesday 10/04Thursday 11/04Friday 12/04Saturday 13/04Sunday 14/04Monday 15/04Tuesday 16/04Wednesday 17/04Thursday 18/04Friday 19/04Saturday 20/04Sunday 21/04Monday 22/04Tuesday 23/04Wednesday 24/04Thursday 25/04Friday 26/04Saturday 27/04Sunday 28/04Monday 29/04Tuesday 30/04Wednesday 01/05Thursday 02/05Friday 03/05Saturday 04/05Sunday 05/05Monday 06/05Tuesday 07/05Wednesday 08/05Thursday 09/05Friday 10/05Saturday 11/05Sunday 12/05Monday 13/05

Timeline of revisions

For accessing reports of previous advisories, please click on the advisory number in the table below.

IDAlert ColorPopulation affectedStart DateEnd DateSource
1 219 deaths and 206000 displaced 12 Apr 2024 06 May 2024 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.