Risk of flooding of low-lying areas in densely populated areas. Check varsom.no for more information.
Consider the need for preventive measures.
Early monday morning expect heavy rainfall, around 30 millimeter(mm) in 6 hours in central and westerly areas, locally 40-45 mm. Expect occasionally high intensity, around 10 mm in 1 hour, and up to 30 mm in 3 hours.