Validity: from 30.5. 11:00 to 1.6. 11:00
- Possible impacts: Rising water level of streams and normally dry ditches. Localised flooding, e.g. in underpasses, underground garages and cellars
- Recommendations for action: Stay away from watercourses, lake shore areas and steep slopes. Pay attention to possible flood warnings from the FOEN. Keep out of cellars and basements when there is a danger of flooding (see procedures for flooding). Avoid watercourses in the mountains at all cost, as these are prone to mudslides. A mudslide can occur very suddenly and without warning, and can be a powerful destructive force
- Expected amounts: 70 - 100 mm
- Snowfall limit: 1700 - 2300 m
- Peak phase of the event: Thu 15 - Fri 02, Fri 10 - Sat 08
- Intensifying conditions: locally higher precipitation amounts due to embedded thunderstorms
- The rain might cause brooks, waterfalls and (usually dry) ditches to swell. Exposed caves might overflow.
- Road traffic obstructed at exposed places.
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