An open-celled cloud over the Pacific Ocean had a shape reminiscent of a certain circular letter of the alphabet.
Published Sep 27, 2014
Whether a patch of clouds contains open or closed cells offers a clue about whether rain is falling below.
Published Feb 6, 2016
The island itself is almost too small see in this image, but it serves as the starting point for the clouds that flow toward the northeast in a giant V shape. Amsterdam Island is a volcanic summit, the northernmost volcano on the Antarctic tectonic plate.
Published Dec 30, 2005
Actinoform clouds pop up off the western coast of Australia.
Published Feb 7, 2020
Patches of open-celled clouds off the west coast of Peru offer beautiful glimpses of the sea—and pointers to where rain may have fallen.
Published Aug 7, 2018
Cold winter conditions set the stage for these unusual clouds that can form due to airplane traffic.
Published Dec 28, 2010
Satellite images separated by 50 years show actinoform clouds over the Pacific Ocean.
Published Jul 19, 2012
Acquired April 17, 2010, this natural-color image shows a network of open- and closed-cell clouds over the Pacific Ocean off the coast of Peru.
Published Apr 28, 2010
Hole-punch and canal clouds form when aircraft pass through altocumulus clouds that are rich with supercooled water droplets.
Published Dec 20, 2014
Hole-punch and canal clouds form when aircraft pass through altocumulus clouds that are rich with supercooled water droplets.
Published Dec 30, 2015
Extremely cold and wet conditions in the mesosphere have led to abundant noctilucent clouds.
Published Jul 9, 2020
Even without a map overlay, global cloud patterns can reveal the shape and location of many of Earth’s continents. This global map of cloud fraction in October 2009 demonstrates the pattern.
Published Nov 17, 2009
