Richard H. Hahn snapped this stunning picture of a lenticular cloud over Rocky Mountain National Park just after sunset on Jan. 5, 2012.
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Distinctive lines of clouds stretch out from the shore of the Aral Sea in this photo-like image captured by the Moderate Resolution Imaging Spectroradiometer…Read More »
(MODIS) on NASA's Aqua satellite on March 12, 2009. While wave clouds like this are not unusual, this particular pattern over the Aral Sea is highly unusual. The clouds conform exactly to the shape of the western shore. Less «
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Credit: USGS EROS Data Center
Each of the swirling clouds in this image acquired by Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor on Sept. 15, 1999, is the result of a meteorological…Read More »
phenomenon known as a von Karman vortex. As wind-driven clouds encounter the peak of an island, they flow around it to form large, spinning eddies. Less «
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Credit: NASA Earth Observatory.
This formation, photographed by a NASA satellite on Aug. 27, 2011, is called an undular bore, or gravity wave train, and it appears as rarely as once a…Read More »
month. An undular bore is a disturbance in the Earth's atmosphere that can be seen as clouds move in waves. They normally occur within an area of the atmosphere that is stable in the low levels after a cold front moves through. Less «
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Credit: Jeff Schmaltz, NAS
Marine stratocumulus clouds have open cells (sky in the middle) and closed cells (cloudy in the middle).
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Credit: Alan Sealls, chief meteorologist, WKRG-TV
An example of a hole-punch cloud created as a jet airplane or turboprop plane flew through a cloudy layer and caused precipitation to fall out.
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Credit: NOAA Photo Library, NOAA Central Library; OAR/ERL/National Severe Storms Laboratory (NSSL)
Mammatus clouds seen over Tulsa, Okla. These clouds are formed by sinking air and are sometimes seen after a potent thunderstorm; they signal that a storm is retreating.