Category Archives: weather

Western sky

  The western sky is associated with sunsets — also grand haloes.  This evening’s sky had a group of haloes. They were not the best I had seen, but they were eminently satisfactory. There was a modest 22° halo, an … Continue reading

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Holes in a cloud

  A week ago, I showed iridescence in a lenticular cloud (colours in a wave cloud). Here is another uncommon feature of such clouds: lacunosus, that is, the cloud is potmarked with holes. (Lacunosus is Latin for: full of lacunae, … Continue reading

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Cloud colours

  The spectacular colours of fall are naturally associated with deciduous trees. Yet, these are not the only delightful variegation to be seen. Iridescent clouds are often visible in this season. The colours in iridescent clouds arise from the interference … Continue reading

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Waltz of wind, water, & waves

  As the sun rose yesterday, a neat choreography of a katabatic wind created ephemeral sprites of steam fog, and abruptly ruffled calm waters farther offshore. In fifteen minutes, it was all over. Katabatic wind The night had been clear, … Continue reading

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Perplexing sky

  Down here on the surface of the earth, we are used to judging distance with the help of contrast: distant objects have a lower contrast than those in the foreground. This insight works for solid objects with sharp boundaries. … Continue reading

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Dew, not dew

  The web of an orb-weaving spider covered in matutinal drops of water is undoubtedly beautiful. But, is the web really covered in dew — as is claimed by a myriad of photo sites? Alas, this is something for which … Continue reading

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Kokanee Creek mouth

  At 534.06 metres, the Lake is still a half metre below the peak flood level of 2012. However, it has been enough to flood some trails in the low parts of Kokanee Creek Park. The Lake is expected to … Continue reading

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Smoking mountain

  A smoking mountain might seem an odd topic during a wet spring. However, the title does not refer to a wildfire, but to the name of a weather phenomenon. Sometimes a cloud streaming off the lee of a mountain … Continue reading

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Steam devils

  A clear morning with a brisk sub-zero wind over the water is ideal for sighting steam devils. There was only a gentle wind two days ago and the devils were not as grand as on some earlier occasions. Yet, … Continue reading

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Sun pictures

  During the solar eclipse of August 21, 2017, telescopes looked up; I looked down. Well, fair’s fair, I looked up also, but I concentrated on the ground. Let me explain.  I leave it to the folks with good equipment … Continue reading

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