Thunderstorms can lead to locally strong wind gusts around 15-25 m/s. 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. Assess the need for preventive measures. 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.
Scattered thunderstorms have been observed with frequent lightning over southeastern part of South Norway. The thunderstorm is expected to continue until tonight. There are large local differences in intensity. Some places will not experience any thunderstorms