RFWBD9D4–Ripples and waves in the sky. Altocumulus undulatus clouds.
RMBCA0T1–Undulating and dappled cloud underlit by sunlight.
RF2RHRXKG–Altocumulus undulatus clouds above the Indian Ocean on the Cape to Cape track north of Gracetown, Leeuwin-Naturaliste National Park, Western Australia
RMD3999R–Altocumulus undulatus. Cloud patterns in the sky over India
RMFA6GRJ–Altocumulus undulatus cloud formation is known as a mackerel sky
RMC0YM6J–Altocumulus undulatus clouds, Brittany, France
RM2T021NT–Altocumulus undulatus clouds forming a ripple effect pattern
RF2BCNKR9–Rolls of cigar shaped clouds in the sky. Latin name: altocumulus undulatus. Weather front is approaching. Suitable as background or wallpaper.
RMCXJ2YP–Altocumulus clouds, the so-called mackerel sky, near sunset
RF2JFNNN2–Rippled clouds named altocumulus undulatus over a neighbourhood in a Dutch town
RF2JFDB4N–Large field of wave clouds, known as altocumulus undulatus
RFPNXYNH–View towards the Lafayette Bridge at St. Louis Forest Park on a sunny winter day with a few altocumulus clouds.
RMD399EP–Altocumulus undulatus. Cloud patterns in the sky over India
RF2CW3C4T–Wave clouds in blue sky. In meteorology these clouds are known as Altocumulus undulatus.
RMATHAPX–Altocumulus Undulatus Clouds
RF2AXC6W4–Beautiful cloud image, altocumulus clouds in wave pattern. Suitable as background or wallpaper.
RMW8014F–Altocumulus undulatus cloud formations and Oak (Quercus) trees at dawn. Epping Forest, London, UK, January.
RM2R6GYEX–Altocumulus undulatus clouds making for a dramatic sky.
RM2C88N14–Rare Cloud Configuration Above Essex, England on a Bright and Warm July Morning
RF2WGBCD3–Beautiful wave clouds, known as Altocumulus undulatus against a steel blue sky.
RM2T021NJ–Altocumulus undulatus clouds forming a ripple effect pattern
RF2BD52GH–Long roll clouds in the sky at dusk as a weather front is approaching. Latin name of the clouds: altocumulus undulatus.
RMBTJ32W–Stormy evening Altocumulus clouds - France.
RF2A2PR60–cool, unusual clouds with white clouds, partly blurred and in the optics of an Auarelle, in the picture above in black the silhouette of a tree branch
RMDD3K14–Mackerel sky / Altocumulus clouds and Poplar trees - France.
RMCXJ2GW–Altocumulus (mackerel sky) clouds with dark stratus cloud beneath near sunset
RFAAY3YP–Mid level white clouds Altocumulus undulatus abstract background
RF2A81HH1–Unusual clouds named Altocumulus undulatus asperitas, or bubble clouds, near Utrecht, Holland. These strange clouds are associated with thunderstorms.
RF2M88PAC–Cloud formations (Altocumulus undulatus), Bavaria, Germany
RFR21T9H–A field of altocumulus clouds with a sharp edge is invading the sky over Transylvania, Romania. Indicative of an approaching weather front.
RMEHP7KJ–Cloudy sky of Athens
RMAW319Y–Altocumulus Undulatus Clouds
RMCFGXNT–Altocumulus undulatus and cumulus clouds. Cloud sky panoramic. India. Monochrome
RM2C88N0B–Rare Cloud Configuration Above Essex, England on a Bright and Warm July Morning
RMPTWA8K–Altocumulus undulatus clouds making for a dramatic sky.
RM2T021P1–Altocumulus undulatus clouds forming a ripple effect pattern
RF2BDEB19–Stunning colors in the sky over the wide open and flat landscape of the province of South Holland (dutch: Zuid-Holland)
RM2FKPKDD–Billow altocumulus low level clouds in blue sky
RF2BPGHJA–Black and white image of wave clouds (Altocumulus) in the sky
RM2RKWCPB–The first light of day lights up a layer of altocumulus clouds during the rainy season in Ruaha National Park.
RF2AXC7CK–Stunning fisheye view of altocumulus clouds over an urban garden
RM2D3CX82–Altocumulus clouds form in the mid-levels of the troposphere and though each cloudlet is separate they can form extensive layers covering a large area