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Hydropower
Sälevä
Sonkajärvi, Finland
Datum
N2000
Date
2026-09-29
Gauge
1834
118.29 m N2000
118.29 m N2000 is the gauge reading converted with SYKE's official datum correction. It is elevation, not a share of stored water. The percentage is where that elevation sits between the lower and upper levels in the regulation permit, both shown on N2000. A lake can stand above 100% when it is over the upper limit. SYKE does not publish the stage-storage curve that would turn this into a volume percent. Compared with 2025-09-29, the level is 0.28 m higher.
Water level
118.29 mvs 1 year ago
+0.28 mRegulation band
98.6%Permit limits
115.53–118.33 m98.6% of the regulation band
115.53 m lower limit118.33 m upper limit
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Datum | N2000 |
| Use | Hydropower |
| Municipality | Sonkajärvi |
| Gauge | 1834 |
| Lower limit | 115.53 m N2000 |
| Upper limit | 118.33 m N2000 |