Overall Green alert Flood
in Brazil

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: 1101822
Deaths: 0
Displaced: -
Region: Rio de Janeiro
Countries: Brazil
From - To 07 Feb - 08 Feb
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 08-02-2023

SENDAI Indicator C N Country Location Info
houses damaged 4 Brazil Rio de Janeiro
SENDAI Indicator D N Country Location Info
roads 136 Brazil Rio de Janeiro

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2023-01-10 / 2023-02-26  

Tuesday 10/01Wednesday 11/01Thursday 12/01Friday 13/01Saturday 14/01Sunday 15/01Monday 16/01Tuesday 17/01Wednesday 18/01Thursday 19/01Friday 20/01Saturday 21/01Sunday 22/01Monday 23/01Tuesday 24/01Wednesday 25/01Thursday 26/01Friday 27/01Saturday 28/01Sunday 29/01Monday 30/01Tuesday 31/01Wednesday 01/02Thursday 02/02Friday 03/02Saturday 04/02Sunday 05/02Monday 06/02Tuesday 07/02Wednesday 08/02Thursday 09/02Friday 10/02Saturday 11/02Sunday 12/02Monday 13/02Tuesday 14/02Wednesday 15/02Thursday 16/02Friday 17/02Saturday 18/02Sunday 19/02Monday 20/02Tuesday 21/02Wednesday 22/02Thursday 23/02Friday 24/02Saturday 25/02Sunday 26/02

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 3 deaths and 300 displaced 17 Jan 2023 19 Jan 2023 GLOFAS
2 0 deaths 25 Jan 2023 27 Jan 2023 GLOFAS
3 0 deaths and 18 displaced 23 Jan 2023 25 Jan 2023 GLOFAS
4 0 deaths and 4476 displaced 22 Jan 2023 24 Jan 2023 GLOFAS
5 0 deaths 30 Jan 2023 31 Jan 2023 GLOFAS
6 0 deaths and 6 displaced 17 Jan 2023 19 Jan 2023 GLOFAS
7 0 deaths 07 Feb 2023 08 Feb 2023 GLOFAS
8 1 deaths 06 Feb 2023 08 Feb 2023 GLOFAS
9 1 deaths 07 Feb 2023 10 Feb 2023 GLOFAS
10 0 deaths and 100 displaced 17 Feb 2023 19 Feb 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.