I have always been somewhat confused about what is and what is not a noctilucent cloud and whether I have ever actually seen one. I think I have but am not sure.
July to the north and northwest after sunset seems to be the best time to try and see one. The following are observing resources related to this rare atmospheric phenomena.
British amater imager Pete Lawrence has had good luck imaging the atmospheric phenomena of noctilucent clouds from latitudes similar to Utah.
http://lpod.wikispaces.com/July+3%2C+2008
Previously confined to polar latitudes, such clouds have been occuring increasing at lower latitudes. E.g.
Noctilucent clouds over Colorado Dec. 22, 2006
http://epod.usra.edu/archive/epodviewer.php3?oid=342112
Noctilucent clouds over France July 2, 2008
http://antwrp.gsfc.nasa.gov/apod/ap080702.html
Noctilucent clouds over Hungary Sept. 17, 2007
http://epod.usra.edu/archive/epodviewer.php3?oid=381664
Noctilucent clouds over Durham England Sept. 16, 2007
http://epod.usra.edu/archive/epodviewer.php3?oid=381600
The maximal southern distribution of noctilucent clouds occurs in July.
July 20 2007 Polar composite (4.7 meg tiff) showing distribution of noctilucent clouds
http://svs.gsfc.nasa.gov/vis/a000000/a003400/a003484/aim_seasonb_GEOmove.HRstills.0149.tif
July 24 2007 Polar composite (3meg tiff) showing distribution of noctilucent clouds
http://svs.gsfc.nasa.gov/vis/a000000/a003400/a003484/aim_seasonb_GEOmove.HRstills.0152.tif
CBS Evening News Broadcast On Noctilucent Clouds
http://www.cbsnews.com/sections/i_video/main500251.shtml?id=3896548n
AIM Noctilucent Cloud Image Gallery
http://aim.hamptonu.edu/library/gallery/gal-nlc.html
AIM Mission - 2007 Composite imagery - noctilucent cloud distribution
http://svs.gsfc.nasa.gov/vis/a000000/a003400/a003484/index.html
AIM Video Gallery
http://aim.hamptonu.edu/library/3video.html
AIM Mission Home
http://aim.hamptonu.edu/mission/index.html
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