Overall Green alert Flood for Colombia
in Colombia

Flood impact summary

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

GDACS ID: 1100849
Deaths: 1
Displaced: -
Region: Caldas
Countries: Colombia
From - To 21 Apr - 19 May
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 30-04-2021

SENDAI Indicator A N Country Location Info
death 1 Colombia Caldas
SENDAI Indicator B N Country Location Info
affected 4800 Colombia Nariño
affected 100 Colombia Norte de Santander
affected 150 Colombia Tolima
affected 465 Colombia San José del Guaviare
affected 355 Colombia Orocué
affected 150 Colombia La Montañita
affected 20000 Colombia La Virginia
SENDAI Indicator C N Country Location Info
houses damaged 65 Colombia San José del Guaviare
houses damaged 800 Colombia La Virginia
houses destroyed 1 Colombia Caldas
houses destroyed 1 Colombia Antioquia

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2021-04-14 / 2021-05-26  

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

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 0 deaths 21 Apr 2021 28 Apr 2021 GLOFAS
2 0 deaths 26 Apr 2021 28 Apr 2021 GLOFAS
3 0 deaths 29 Apr 2021 30 Apr 2021 GLOFAS
4 1 deaths 27 Apr 2021 29 Apr 2021 GLOFAS
5 0 deaths 02 May 2021 04 May 2021 GLOFAS
6 0 deaths 08 May 2021 20 May 2021 GLOFAS
7 0 deaths 12 May 2021 20 May 2021 GLOFAS
8 0 deaths 17 May 2021 21 May 2021 GLOFAS
9 0 deaths 17 May 2021 19 May 2021 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.