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Flood control, Water supply, Hydropower
Iso Allasjärvi
Alavus, Finland
Datum
N2000
Date
2026-10-05
Gauge
2704
116.22 m N2000
116.22 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 2025-10-05, the level is 0.01 m higher.
Water level
116.22 mvs 1 year ago
+0.01 mRegulation band
69.1%Permit limits
115.01–116.76 m69.1% of the regulation band
115.01 m lower limit116.76 m upper limit
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Datum | N2000 |
| Use | Flood control, Water supply, Hydropower |
| Municipality | Alavus |
| Gauge | 2704 |
| Lower limit | 115.01 m N2000 |
| Upper limit | 116.76 m N2000 |