Timelapse of passing clouds with dark thundercloud at edge with blue sky behind on summer day before summer thunderstorm

timelapse timelapse clouds blue sky summer clouds passing clouds dark thundercloud edge summer day thunderstorm weather fast motion changing skyline horizon atmosphere climate daylight cumulus ominous nature meteorology overcast moody dramatic transition breathtaking scenic time progression cloud movement aerial contrast forecast rain cloud background backgrounds loop africa gambia solar energy ozone season time lapse calendar cloudburst news preparation