Overall Green Flood
in Islamic Republic of Iran

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: 1104206
Deaths: 1
Displaced: -
Region: Golestan Province, Gonbad-e Kavus, Maraveh Tappeh
Countries: Islamic Republic of Iran
From - To 27 Sep - 29 Sep
Known identifiers for this event:

GDACS Score

For more info on GDACS score click here.

Impact Assessement as of 01-10-2026

SENDAI Indicator A N Country Location Info
death 1 Islamic Republic of Iran Gonbad-e Kavus
missing 2 Islamic Republic of Iran Maraveh Tappeh
SENDAI Indicator C N Country Location Info
houses damaged 28 Islamic Republic of Iran Maraveh Tappeh

Satellite Observation

Satellite-based Flood extent provided by GLOFAS
Overall of the satellite-based flooded area from / to : 2026-09-20 / 2026-10-06  

Sunday 20/09Monday 21/09Tuesday 22/09Wednesday 23/09Thursday 24/09Friday 25/09Saturday 26/09Sunday 27/09Monday 28/09Tuesday 29/09Wednesday 30/09Thursday 01/10Friday 02/10Saturday 03/10Sunday 04/10Monday 05/10Tuesday 06/10

Timeline of revisions

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

IDLevelPopulation affectedStart DateEnd DateSource
1 1 deaths 27 Sep 2026 29 Sep 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.