Overall Green alert Flood for Vietnam
in Vietnam

Flood impact summary

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

GDACS ID: 1100547
Deaths: 5
Displaced: -
Region: Cao Bang province, Ha Giang, Ha Giang Province
Countries: Vietnam
From - To 20 Jul - 28 Jul
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 20-07-2020

SENDAI Indicator A N Country Location Info
death 5 Vietnam Ha Giang Province
SENDAI Indicator B N Country Location Info
injured 1 Vietnam Cao Bang province
SENDAI Indicator C N Country Location Info
houses 5 Vietnam Cao Bang province
houses 57 Vietnam Ha Giang
houses 2 Vietnam Ha Giang

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2020-07-13 / 2020-08-04  

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

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 5 deaths 20 Jul 2020 28 Jul 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.