Overall Green Flood alert in Switzerland from 21 Jun 2024 01:00 UTC to 28 Jun 2024 01:00 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green alert Flood

in Switzerland

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:	1102713
Deaths:	4
Displaced:	700
Region:	Schleitheim
Countries:	Switzerland
From - To	21 Jun - 01 Jul
Known identifiers for this event:

GDACS Score

For more info on GDACS alert score click here.

Impact Assessement as of 28-06-2024

SENDAI Indicator A	N	Country	Location	Info
death	1	Switzerland	Heiligkreuz
death	3	Switzerland	Fontana

SENDAI Indicator B	N	Country	Location
affected	3	Switzerland	Sorte
affected	270	Switzerland	Basel-Landschaft
affected	150	Switzerland	Morges
affected	31	Switzerland	Schleitheim
affected	1	Switzerland	Visletto
affected	1	Switzerland	Peccia
affected	300	Switzerland	Peccia
displaced	230	Switzerland	Chippis
displaced	200	Switzerland	Sion
displaced	200	Switzerland	Siders
displaced	70	Switzerland	Mogno
rescued	1	Switzerland	Sorte
rescued	200	Switzerland	Cevio

SENDAI Indicator C	N	Country	Location	Info
houses	3	Switzerland	Sorte

Satellite Observation

Satellite-based Flood extent provided by GLOFAS

Overall of the satellite-based flooded area from / to : 2024-06-14 / 2024-07-02

Timeline of revisions

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

ID	Population affected	Start Date	End Date	Source
1	0 deaths and 230 displaced	21 Jun 2024	23 Jun 2024	GLOFAS
2	0 deaths	25 Jun 2024	27 Jun 2024	GLOFAS
3	0 deaths	25 Jun 2024	27 Jun 2024	GLOFAS
4	0 deaths	27 Jun 2024	28 Jun 2024	GLOFAS
5	1 deaths and 400 displaced	29 Jun 2024	01 Jul 2024	GLOFAS
6	3 deaths and 70 displaced	29 Jun 2024	01 Jul 2024	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.

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.