01 April 2011
A recent sunset as photographed from my rooftop.
I’ve been preoccupied with other projects and have thus neglected this site for months. Tsk-tsk! For the next little while my posts might be just random images that I like. For starters, here are some San Francisco skies that I shot with a little Canon G3 back in 2003.
“After the Rain”
One of the best things about the building in which I live is an accessible rooftop, where I have a fairly unobstructed view of the sky. Last night I was fortunate to see a spectacular sunset made even more luscious by the appearance of lenticular clouds in the northeastern sky. Altocumulus lenticularis are stationary lens-shaped clouds that form at high altitudes over mountainous regions, normally aligned perpendicular to the wind direction. When stable moist air flows over mountains, enormous standing waves sometimes form in the mountains’ lee. If the temperature at the crest of a wave is at or below the dew point, moisture in the air can condense to form a lenticular cloud. When multiple lenticular clouds are generated by the crests of successive waves, the resulting formation is known as a wave cloud.