Overall Green alert Flood
in India

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: 1100611
Deaths: 16
Displaced: 214
Region: Assam, Maharashtra, Meghalaya, Hojai
Countries: India
From - To 12 Sep - 28 Sep
Known identifiers for this event:


For more info on GDACS alert score click here.

Impact Assessement as of 22-09-2020

SENDAI Indicator A N Country Location Info
death 1 India Bishwanath
death 2 India Mumbai, Mumbai Suburban
death 13 India West Khasi Hills
SENDAI Indicator B N Country Location Info
affected 34000 India Hojai
affected 985 India West Khasi Hills
affected 317977 India Hojai
displaced 100 India Mumbai Suburban
displaced 114 India Hojai
rescued 135 India Udupi district

Satellite Observation


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 1 deaths 12 Sep 2020 16 Sep 2020 FloodList
2 0 deaths 19 Sep 2020 21 Sep 2020 FloodList
3 0 deaths and 100 displaced 22 Sep 2020 24 Sep 2020 FloodList
4 2 deaths and 100 displaced 22 Sep 2020 24 Sep 2020 FloodList
5 13 deaths 22 Sep 2020 28 Sep 2020 FloodList
6 0 deaths and 114 displaced 22 Sep 2020 22 Sep 2020 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.