Overall Red Flood
in China

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: 1104051
Deaths: 10
Displaced: 809145
Region: Heilongjiang, Jilin, Sichuan
Countries: China
From - To 25 Jul - 31 Jul
Known identifiers for this event: FL-2026-000136-CHN

GDACS Score

For more info on GDACS score click here.

Impact Assessement as of 02-08-2026

SENDAI Indicator A N Country Location Info
death 10 China Weiyuan County
SENDAI Indicator B N Country Location Info
affected 88203 China Sichuan
displaced 801000 China Guangdong Province
displaced 8145 China Wangqing County
injured 23 China Weiyuan County
rescued 19 China China
rescued 27 China Shanwei
rescued 30 China Youxi Town

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2026-07-18 / 2026-08-07  

Saturday 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 04/08Wednesday 05/08Thursday 06/08Friday 07/08

Timeline of revisions

For accessing reports of previous advisories, please click on the advisory number in the table below.

IDLevelPopulation affectedStart DateEnd DateSource
1 10 deaths 26 Jul 2026 28 Jul 2026 GLOFAS
2 0 deaths and 801000 displaced 25 Jul 2026 27 Jul 2026 GLOFAS
3 0 deaths and 8145 displaced 29 Jul 2026 31 Jul 2026 GLOFAS
4 0 deaths 29 Jul 2026 31 Jul 2026 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.