by nomo » Fri Jun 30, 2006 2:11 pm
<!--EZCODE ITALIC START--><em>Just goes to show that Nature itself is quite capable of creating the strangest "phenomena."</em><!--EZCODE ITALIC END--><br><!--EZCODE EMOTICON START :smokin --><img src=http://www.ezboard.com/images/emoticons/smokin.gif ALT=":smokin"><!--EZCODE EMOTICON END--> <br><br><!--EZCODE IMAGE START--><img src="http://news.nationalgeographic.com/news/2006/06/images/060619-rainbow-fire_big.jpg"/><!--EZCODE IMAGE END--><br><!--EZCODE LINK START--><a href="http://news.nationalgeographic.com/news/2006/06/060619-rainbow-fire.html">news.nationalgeographic.com/news/2006/06/060619-rainbow-fire.html</a><!--EZCODE LINK END--><br><br>June 19, 2006—It looks like a rainbow that's been set on fire, but this phenomenon is as cold as ice.<br><br>Known in the weather world as a circumhorizontal arc, this rare sight was caught on film on June 3 as it hung over northern Idaho near the Washington State border (map of Idaho).<br><br>The arc isn't a rainbow in the traditional sense—it is caused by light passing through wispy, high-altitude cirrus clouds. The sight occurs only when the sun is very high in the sky (more than 58° above the horizon). What's more, the hexagonal ice crystals that make up cirrus clouds must be shaped like thick plates with their faces parallel to the ground.<br><br>When light enters through a vertical side face of such an ice crystal and leaves from the bottom face, it refracts, or bends, in the same way that light passes through a prism. If a cirrus's crystals are aligned just right, the whole cloud lights up in a spectrum of colors.<br><br>This particular arc spanned several hundred square miles of sky and lasted for about an hour, according to the London Daily Mail. <br><br><br><br><br><!--EZCODE IMAGE START--><img src="http://www.neatorama.com/images/2006-06/wave-cloud-over-iowa.jpg"/><!--EZCODE IMAGE END--><br><!--EZCODE LINK START--><a href="http://www.neatorama.com/2006/06/27/weird-wave-clouds/">www.neatorama.com/2006/06/27/weird-wave-clouds/</a><!--EZCODE LINK END--><br><br>A weird weather phenomenon made the skies over Eastern Iowa looks like a scene right out of the sci-fi movie "Independence Day". Local TV station KCRG reports:<br><br><!--EZCODE ITALIC START--><em> I thought I was going to see alien spaceships come down through the clouds," said Casey Dunagan.<br><br> Some say it looked like a scene from the movie “Independence Day.” Others had more down-to-earth descriptions. It almost reminded me of ocean waves rolling in," said Suzanne Staab. I thought it looked like a nice frothy cream on a latté," said Robin Morris.</em><!--EZCODE ITALIC END--><br><br><br><br> <p></p><i></i>