Gallery: Unusual clouds spotted by Weather Watchers

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To mark the release of the World Meteorological Organization's new International Cloud Atlas, here at Weather Watchers we thought it was only right to show off some of OUR best cloud pictures!

A photograph of wave-like clouds over the seaImage source, MikeD/Weather Watchers
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Kelvin-Helmholtz clouds, now officially recognised as fluctus, spotted in Poole, Dorset, by Mike. Photo taken in February.

A country scene with several trees in the foreground and wave-like clouds covering the skyImage source, Fractus/Weather Watchers
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Asperitas clouds, often spotted by our Weather Watchers, have now been officially classified in the Cloud Atlas. This great example was captured in Bakewell, Derbyshire, by Fractus, in March.

A country scene with three trees within the foreground and several wave-like clouds covering the skyImage source, Bird brain/Weather Watchers
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Weather Watcher Bird brain also photographed this stunning asperitas formation in Derbyshire, Peak District. Photo taken in March.

A sky full of clouds with a large hole punch through the middleImage source, Ed/Weather Watchers
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A fallstreak hole photographed by Ed, in Bassingbourn, Cambridgeshire, will now be officially called cavum. Photo taken in January.

A two hole punch clouds, one more elongated than the otherImage source, Adrian/Weather Watchers
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Fallstreak holes (cavum) can come in all different shapes and sizes! These two were spotted by Adrian in Wimborne Minster, Dorset, in January.

Several lens shaped clouds with a pink hueImage source, earthseasky/Weather Watchers
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Earthseasky spotted these dramatic lenticular clouds at sunset in Coltfield, Moray, in September 2016.

A tranquil country scene with several lens-shaped clouds within the skyImage source, GillyG/Weather Watchers
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These 'UFO shaped' lenticular clouds were captured by GillyG in Richmond, North Yorkshire, in March.

Large towering clouds with rain shafts falling, photograph taken from a harbourImage source, OrkneyAnne/Weather Watchers
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A fantastic shot of towering cumulonimbus clouds over Kirkwall Bay, Orkney. Photo taken by Anne in March.

A sports ground with dark udder-like clouds in the skyImage source, SergD/Weather Watchers
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Magnificent mammatus clouds spotted over Hersham, Surrey, in March. Photo by SergD.

Photograph taken from a garden with an elephant shaped cloud in the skyImage source, Julie/Weather Watchers
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Last but not least, this "rare" elephant cloud was spotted by Julie in Willerby, North Yorkshire, in March.