Overall Orange alert Flood
in India

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: 1100755
Deaths: 45
Displaced: -
Region: Uttarakhand, Chamoli district
Countries: India
From - To 07 Feb - 09 Feb
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 07-02-2021

SENDAI Indicator A N Country Location Info
death 26 India Pauri Garhwal, Chamoli
death 19 India Chamoli district
missing 171 India Pauri Garhwal, Chamoli
SENDAI Indicator B N Country Location Info
affected 202 India Chamoli district

Satellite Observation

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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 26 deaths 07 Feb 2021 09 Feb 2021 FloodList
2 19 deaths 07 Feb 2021 07 Feb 2021 FloodList

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.