Local flooding and/or erosional damage in streams and small rivers. Extensive floods, erosion damage and flood damage to buildings and infrastructure. May cause closed roads and bridges.
Stay informed on the situation. Secure and/or move assets away from vulnerable areas (car, caravan along rivers/streams, basements). Cleaning of drainage paths and culverts is recommended. Keep away from rivers and streams with high flow. Emergency authorities must be prepared for the fact that building and infrastructure in general may be subject to serious incidents.
Flood values are still at red warning levels in lakes Tyrifjorden, Randsfjorden, and Sperillen as well as in river Begna downstream of Sperillen. Tyrifjorden i still rising from 65.35 m a.s.l. on Monday to expected 65.56 m a.s.l. on Thursday. Flood levels are highly sensitive to precipitation, and the forecasts are uncertain.