Thunderstorms can lead to locally strong wind gusts. Danger of damage to object(s) as a result of lightning strikes. The power supply and TV / internet may be affected. Hail can occur and can e.g. provide transient slippery roads. Bigger hail can cause damage, e.g. to cars and crop. 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.
From late Thursday evening until Friday forenoon it is expected much lightning in Trøndelag. Increasing lightning activity from early Friday morning. Most lightning expected along the coast. There wil be large local differences in intensity and some areas wil not experience lightning.