Overall Green alert Flood for Brazil
in Brazil

Flood impact summary

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

GDACS ID: 1100704
Deaths: 13
Displaced: 400
Region: Duque de Caxias
Countries: Brazil
From - To 16 Dec - 23 Dec
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 22-12-2020

SENDAI Indicator A N Country Location Info
death 1 Brazil Ibirama
death 12 Brazil Presidente Getulio
death - Brazil Duque de Caxias
missing 7 Brazil Presidente Getulio
missing 2 Brazil Rio do Sul
SENDAI Indicator B N Country Location Info
affected 1600 Brazil Presidente Getulio
displaced 36 Brazil Rio do Sul
displaced 80 Brazil Ibirama
displaced 284 Brazil Presidente Getulio
SENDAI Indicator C N Country Location Info
houses destroyed 3 Brazil Duque de Caxias

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2020-12-09 / 2020-12-30  

Wednesday 09/12Thursday 10/12Friday 11/12Saturday 12/12Sunday 13/12Monday 14/12Tuesday 15/12Wednesday 16/12Thursday 17/12Friday 18/12Saturday 19/12Sunday 20/12Monday 21/12Tuesday 22/12Wednesday 23/12Thursday 24/12Friday 25/12Saturday 26/12Sunday 27/12Monday 28/12Tuesday 29/12Wednesday 30/12

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 13 deaths and 400 displaced 16 Dec 2020 18 Dec 2020 GLOFAS
2 0 deaths 22 Dec 2020 23 Dec 2020 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.