river delta view of lake and alpine landscape by storm clouds

alpine alps atmosphere austria background bank bodensee brewing chilly cloud clouded clouds cloudscape constance cover dark darken darkened darkening delta dramatic duskiness europe european gloom gloomy lake landscape meteorology mountain natural nature range rhine river scene scenery sinister snow-covered spring storm stormy swiss twilight view wallpaper water waters weather wet cold becloud beclouded mood grey gray nimbus majestic