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:
Køge, Lejre, Roskilde and Solrød
Additional warnings issued for thunderstorm In København og Nordsjælland:
Awareness level yellow: Valid from 31.08.2026 09:00 GMT+01:00 to 31.08.2026 19:00 GMT+01:00
Category 1: Heavy rainfall, thunderstorms and flash flood. 15 to 25 mm rain in 30 min.
Valid for:
Frederikssund, Greve, København Nord, København og Amager, Københavns Vestegn and Nordsjælland.
Varoitus voimassa ma klo 9:00 - ma klo 21:00