Pegelalarm / FloodAlert Water Level API
FloodAlert (Pegelalarm) aggregated water-level and gauge API covering ~30,000 gauges across Austria, Germany, Switzerland and neighbouring countries with current, historical and forecast levels.
pegelalarm.at
At a glance
- Region
- Austria (Europe)
- Coverage
- Central Europe
- Access
- Free
- Category
- Company
- Last updated
- 2026
What's inside
- water level
- gauge
- discharge
- flood forecast
Terms explained
What you can do with it
Typical work that data of this type supports.
- 01
Design flows
Estimate 1-in-50 and 1-in-100 year floods for bridges, culverts and spillways.
Because it has: gauge
- 02
Low flows
Set environmental flows and check what is left in the river in a dry year.
- 03
Hazard maps
Map flood-prone areas and who and what is exposed.
Because it has: flood forecast
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Flow forecasting
Train LSTM-style models on past records to forecast river levels and flow days ahead.
- 02
Ungauged basins
Combine with catchment data to estimate flow where there is no gauge.
- 03
Flood extent from SAR
Segment flooded areas in radar imagery, even through cloud.
Machine access and documentation
Open API
Public HTTP/JSON gauge API documented on api_and_data page
Licence: Open data
Listed in our registry of open water APIs, which WaterDataGPT can query live.
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- Bulgaria NIMH Hydrological DataEurope | Free
- Hochwassernachrichtendienst Bayern (HND) - Bavarian Flood Information ServiceEurope | Free
- IMGW Poland Hydrological Data PortalEurope | Free
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