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Optical Effects
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Pannus stemming from a storm system, spotted over the Mission Mountain Range near Charlo, Montana, US
Cumulus congestus with pannus below, which is a type of fractus cloud at low heights, detached and of irregular form, as spotted over Cooma, New South Wales, Australia
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A notable contrast in this view of a mixed sky over Bluff, Utah, US
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A storm system with a developing wall cloud (murus), spotted while driving towards the coast from Granada to Motril, Andalusia, Spain
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Cumulus congestus that appears to be on the verge of developing into a cumulonimbus, with a classic example of pileus over the top of its formation, spotted near Tuggeranong, Australian Capital Territory, Australia
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Altocumulus lenticularis, along with lenticularis that appear to be at the stratocumulus level in the background, spotted near Torres Del Pine, Patagonia, Chile
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Virga coming close to reaching the ground, which if it did, would be precipitation reaching the surface, stemming from a storm at sunset near Bigfork, Montana, US
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An expansive storm system with shreds of pannus, which are also known as scud clouds, forming below the cumulonimbus, as captured by Warren Keelan from the top of Mount Kiera in Wollongong, New South Wales, Australia
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Nimbostratus over Golestan County, Shiraz, Iran
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Storm system near College Station, Texas, US
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Cumulus congestus prior to a storm developing near Torrejon de Ardoz, Spain
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Shreds of pannus, also known as scud clouds, can take on different shapes and sizes, and usually exists within the saturated environment beneath a storm. This example was spotted over Cotia, São Paulo, Brazil
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Pannus, which is a type of stratus fractus, seen here in the saturated atmosphere below towering cumulus congestus, as viewed above Sagres, Algarve, Portugal
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Storm system over Puget Sound and the Olympic Mountains, as viewed to the west from Edmonds, Washington, US
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A lowering of a layer of cloud, which appears to be a variation of a Cavum (Fallstreak Hole), spotted over Fayetteville, Arkansas, US
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Mamma (Mammatus) on an afternoon wherein Sarah describes the sky as churning over the state capital of Jefferson City, Missouri, US
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