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Asperitas with lacunosus spotted by Jeffrey while re-deploying a gas analyzer on the MOFLUX tower that measures the breathing of the forest, near Baskett Forest, Boone County, Missouri, US
A storm system near Savannah, Georgia, US
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A developing storm in the distance, spotted near Lynwood, Washington, US
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An approaching storm near Miramar Beach, Florida, US
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A developing storm with signs of mammatus (mamma) over Luskentyre Beach, Isle of Harris, Scotland
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A developing storm near Winthrop, Washington, US
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Mammatus (Mamma), often associated with thunderstorms, are indicative of sinking cold air that's carried into warmer air layers and create the characteristic bumpy, rounded appearance, as seen here over Hovell's Creek, Geelong, Victoria, Australia.
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Cumulonimbus that produced intermittent bursts of blustery rain near Cotswolds, England
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A night that was filled with sound and light, reflected here by the visible cumulonimbus due to the ongoing lightning strikes, captured by Courtenay's friend, Jack Canter, near Boman, South Carolina, US
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Mammatus (Mamma) spotted by Sara's niece over Montana State University, Bozeman, Montana, US
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Storm development during monsoon season, accompanied by a relatively small horseshoe vortex, over Tucson, Arizona, US
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An approaching storm system near Brighton, Colorado, US
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The visible moon beyond the reach of an approaching cumulonimbus, spotted over Zagreb, Croatia
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Cumulonimbus near Luskentyre Beach, Isle of Harris, Scotland
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Signs of asperitas with a storm near Rotterdam, The Netherlands
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A developing storm system over Lake Maggiore, Piemonte, Italy
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