Heavy rainfall. Risk of flash flood, flooding of low-lying areas, flooding of basements, water on roads and viaducts (aquaplaning), and reduced visibility. Heavy thunderstorms involve a risk of fires, failure in electric systems, and many false alarms from automatic systems.
Category 1: Heavy rainfall, thunderstorms and flash flood. 15 to 25 mm rain in 30 min.
Valid for:
Langeland
Additional warnings issued for thunderstorm In Fyn:
Awareness level yellow: Valid from 04.08.2026 22:05 GMT+01:00 to 05.08.2026 07:00 GMT+01:00
Category 1: Heavy rainfall, thunderstorms and flash flood. 15 to 25 mm rain in 30 min.
Varoitus voimassa ke klo 6:00 - ke klo 13:00