geocat.ch
Flood alert map
The flood alert map shows the current flood danger level (1 to 5) for all and for the regions in relation to small and medium-sized rivers.
The rivers of national interest are divided into individual stretches of river, each of which has a defined discharge gauging station. The forecast is based on a hydrological model and various weather models. Depending on how the forecasters assess and interpret the models, individual stretches of river and lakes are colour-coded by danger level. If necessary, the FOEN forecasters may request more detailed information on weather developments and the status of snow cover from MeteoSwiss and/or the WSL Institute for Snow and Avalanche Research (SLF).
The FOEN also issues alerts and information when a strong increase in discharge is expected locally on small and medium-sized rivers. In such cases – especially during thunderstorms with heavy rainfall – it is not possible to predict precisely which water bodies will be affected. Therefore, the regions likely to be affected are marked on the flood alert map. There are only three danger levels for small and medium-sized rivers due to the greater uncertainties involved: no or minor danger (green), moderate flood danger (yellow) and high flood danger (red).
Simple
- Alternate title
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Flood alert map
- Date (Creation)
- 2014-11-05
- Identifier
- ch.bafu.hydroweb-warnkarte_national
Point of contact
- Topic category
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- I Inland waters
Extent
Extent
- Description
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Switzerland
))
- Maintenance and update frequency
- Unknown
- GEMET
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flood
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flowing water
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hydrology
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lake
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natural hazard
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water (geographic)
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- geocat.ch
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opendata.swiss
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- geocat.ch
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FSDI Federal Spatial Data Infrastructure
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Resource constraints
- Use constraints
- Other restrictions
- Other constraints
- Opendata OPEN: Open use.
- Language
- Deutsch
- Character encoding
- UTF8
- Basic Geodata
- false
- Basic Geodata Legal Level
- Federal
- Distribution format
-
-
GeoJSON (GEOJSON)
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Digital transfer options
- OnLine resource
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Vorschau map.geo.admin.ch
Preview map.geo.admin.ch
Digital transfer options
- OnLine resource
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ch.bafu.hydroweb-warnkarte_national
WMS-FSDI service, layer "Flood alert map"
Digital transfer options
Digital transfer options
- Geometric object type
- Curve
- Geometric object type
- Surface
- Reference system identifier
- EPSG:21781
Metadata
- Metadata identifier
- e1d0c17a-0dbd-4455-bc83-1606e1e04298
- Language
- Deutsch
- Character encoding
- UTF8
- Language
- Français
- Character encoding
- UTF8
- Language
- Italiano
- Character encoding
- UTF8
- Language
- English
- Character encoding
- UTF8
- Language
- Rumantsch
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://www.geocat.ch/geonetwork/srv/api/records/e1d0c17a-0dbd-4455-bc83-1606e1e04298
- Date info (Creation)
- 2014-11-05T15:42:18Z
- Date info (Revision)
- 2026-06-15T09:15:30.488264Z
Metadata standard
- Title
-
eCH-0271
