Yellow weather warning for thunderstorms in Østfold and Agder

Thursday 18th June 2026 on 13:45 in Norway

norway, Østfold, weather

The Norwegian Meteorological Institute has issued a yellow weather warning for thunderstorms with frequent lightning in Østfold and parts of Agder, effective from 03:00 to 11:00 on Saturday, Dagbladet reports.

Local variations are expected, according to the warning. The unstable weather pattern is caused by warm summer air from Southern Europe meeting cooler air from Greenland over Norway.

Vigorous thunderstorms may bring strong wind gusts and heavy downpours, potentially creating difficult driving conditions. Authorities advise avoiding outdoor activities in exposed areas and seeking shelter during the storms.

Source 
(via Dagbladet)