Norway iridescent foehn clouds
On February 6, 2011, Dirk Steinborn observed these beautiful iridescent foehn clouds in Favang (about 1-hour-drive north of Lillehammer, Norway). The photographs were taken between 14 and 15 hours CET. The observer supposes: “Probably there weren´t any mother-of-pearl clouds. It is cirrus, but also some medium level clouds had a reddish colour.”
More pictures: 1 – 2 – 3 – 4 – 5 – 6.
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Posted on July 11, 2011, in coronae and iridescence, observations, polar stratospheric clouds and tagged foehn clouds, iridescence. Bookmark the permalink. 3 Comments.
I guess a case can be made that’s probably just mother-of-pearl clouds:
– the calculates sun elevation is 11,4 to 7,9 deg. The observation of MOP’s should be possibly to this low solar altitude.
– the Upper AIr Soundings from Stavanger shows a temperature less than -80°C.
http://weather.uwyo.edu/cgi-bin/sounding?region=europe&TYPE=PDF%3ASTUVE10&YEAR=2011&MONTH=02&FROM=0600&TO=0612&STNM=01415
– the iridecence clouds seems to be far off the sun, a sun distance more than 40deg would be very unusual for such bright “normally” iridescence clouds.
Maybe the skilled Finns can help?
Best wishes
Claudia
nice image !!
Congratulation to this wunderful pictures!
I don’t think that’s PSC, the position of the sun ist too high. But there are very high Cirrus clouds till 15km, maybe this observation is a halfway between normally Cirrus and PSC.
I’d be interested in knowing if another Finnish or Scandinavian observer have seen similarly at the same time? Is there a chance to glean it?