Locally heavy rain showers. Danger of damage to object(s) as a result of lightning strikes. The power supply and TV / internet may be affected. Lightning strikes can cause fires in buildings or forests/vegetation.
Stay up to date on the development of the weather and the weather forecast. Monitor the weather radar or lyn.met.no. Disconnect electrical appliances. Adjust driving speed according to the road/weather conditions. Seek shelter. Avoid open plains and large trees. Do not swim or bathe.
From Tuesday afternoon to early Wednesday there is a risk of frequent lightning in Nordland and parts of Trøndelag. There will be large local differences in intensity. The lightning activity starts in south and moves northwards. Some places will not experience any lightning.