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Sunset Time-lapse 09-06-11

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Uploaded by on Sep 6, 2011

After the sun set this evening, the northwest horizon was glowing a nice amber for several minutes. This time-lapse video was shot over 20 minutes and compressed to 45 seconds. It is from the Observatory's weather room looking northwest towards Lancaster, NH. Note the passing fog in the foreground as well.

Mount Washington Observatory is a nonprofit, membership-supported research and educational institution with a mission to advance understanding of the natural systems that create Earth's weather and climate. Since 1932, the Observatory has been observing Mount Washington's incredible extremes, conducting scientific research, educating the public about the science of weather and climate and amassing one of North America's longest and most unique climate records. For weather reports, webcams, photos and more, visit MountWashington.org.

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  • @JimmyB1440: Often times, clouds at different levels will move in different directions, because the winds at various levels in our atmosphere can be moving in different directions. The clouds in the foreground are low level, oragraphic (mountain induced) clouds. The clouds in the background are a mid-level altostratus layer, probably about 6,000 feet above the summit of Mount Washington, or about 12,000 feet above sea level. This change in wind direction with height is called "wind shear".

  • @JimmyB1440: Often times, clouds at different levels will move in different directions, because the winds at various levels in our atmosphere can be moving in different directions. The clouds in the foreground are low level, oragraphic (mountain induced) clouds. The clouds in the background are a mid-level altostratus layer, probably about 6,000 feet above the summit of Mount Washington, or about 12,000 feet above sea level. This change in wind direction with height is called "wind shear".

  • Wow, beautiful! Great shot guys :D

    Hey I have a quick question......

    How come the clouds in the backround are traveling to the right while the close up clouds and/or fog is moving to the left? Just curious.

    Thanks!!!! :)

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