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.HRs... July 24 2007 Polar composite (3meg tiff) showing distribution of noctilucent clouds http://svs.gsfc.nasa.gov/vis/a000000/a003400/a003484/aim_seasonb_GEOmove.HRs... 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 - Schauen Sie zum Himmel an Kurt