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User / Bill Bowman
Bill Bowman / 1,438 items

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Mountain wave/ lenticular clouds on the east slopes of the Colorado Front Range form when strong winds blowing out of the west are deflected by the Rocky Mountains. The moisture in the clouds condenses when forced upward, forming clouds. These clouds appear stationary, but they are quite dynamic, continually forming on the windward side (edge of the blue sky here) and dissipating toward the leeward side. Their inner beauty shows best when the sun is near the horizon at sunrise or sunset (as here). These clouds had particularly nice sharp edges to them.


Thanks for your views, comments and favs. I will be out of internet contact for the next week, wandering around the high desert, but look forward to catching up with you when I get back.

Tags:   Mountain wave clouds lenticular clouds Boulder Colorado Green Mountain Bear Peak sunset Front Range southern Rocky Mountains cloud porn

N 122 B 1.4K C 35 E Feb 15, 2021 F Feb 18, 2021
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Elaborate frost shines in the first light of the morning, with delicate branches and elaborate platelets, especially in the lower right. I find photographing frost difficult, as it often has an overwhelming amount of intricate detail. In the right light with some magnification it begins to be manageable, as long as you don't bump into or breathe on your subject.

Tags:   hoar frost frost crystals frost platelets -10 F morning light

N 145 B 1.5K C 26 E Feb 10, 2021 F Feb 16, 2021
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The Arctic air has a few delights to share as well as frigid temperatures. These snow crystals are lying on fir needles 1 mm wide to give you a sense of scale.

Tags:   snow snow crystal dendrite crystals no two are alike! winter missing an arm

N 124 B 1.5K C 28 E Jan 4, 2021 F Feb 15, 2021
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Like cream mixing in a cup of coffee, atmospheric winds swirl clouds into eye appealing patterns determined by mixing boundaries and turbulence. Note also the subtle iridescence at the bottom edge of the cloud created by diffraction of light through the cloud droplets.

Tags:   mountain wave cloud cloud abstract cloud swirl late afternoon light Boulder Colorado

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The silvery San Juan River flows toward the illuminated front of Raplee Ridge, a ripple in Earth’s crust known as a monocline or anticline to geologists. As noted in my earlier posts of Raplee Ridge this ripple was formed during a period of mountain building around 70 million years ago when the Rocky Mountains were uplifted. The warm sunset light shows off well the varied rock layers of limestone, silts, and sand, remnants of ocean deposits from 200-300 million years ago.

Tags:   Raplee Ridge San Juan River sunset Utah Colorado Plateau


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