There is a risk of frequent lightning. In Finnmark there is is a risk of gusts around 20-25 m/s. There will be local differences in intensity of the thunderstorms. Some places will not experience any lightning. Lightning can damage objects: Lightning can cause fires in buildings. Dry vegetation/forest can catch fire. Power supply and TV/internet can be affected. Electrical appliances may be damaged if not unplugged. Locally difficult driving conditions: Heavy rainfall can lead to flooding on roads in some areas. Locally strong wind gusts: Thunderstorms can bring strong wind gusts.