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A fascination for our local NW arch and its uniqueness were one of the things that developed an interest for me as a kid in meteorology. What was it that got you started?Strong northwesterly winds across the South Island today, in combination with lots of mid to high level moisture have made for ideal conditions to form a classic Northwest Arch cloud east of the South Island ranges. Beneath the "Arch", waves have developed Asperatus clouds (sometimes called "Asperitas") a wave-like formation and a relatively newly named sub-species of cloud. You can find out more about these clouds in the WMO International online cloud atlas here https://cloudatlas.wmo.int/clouds-supplementary-features-asperitas.html This image shows the Asperatus cloud features observed this morning on the webcam near Timaru and beneath the webcam image is a True Colour Satellite image of the sharp Arch cloud east of the Divide. Thanks to JMA (Japan Meteorological Agency) for the image. ^AB

A fascination for our local NW arch and its uniqueness were one of the things that developed an interest for me as a kid in meteorology. What was it that got you started?

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Strong northwesterly winds across the South Island today, in combination with lots of mid to high level moisture have made for ideal conditions to form a classic Northwest Arch cloud east of the South Island ranges.

Beneath the "Arch", waves have developed Asperatus clouds (sometimes called "Asperitas") a wave-like formation and a relatively newly named sub-species of cloud.

You can find out more about these clouds in the WMO International online cloud atlas here https://cloudatlas.wmo.int/clouds-supplementary-features-asperitas.html

This image shows the Asperatus cloud features observed this morning on the webcam near Timaru and beneath the webcam image is a True Colour Satellite image of the sharp Arch cloud east of the Divide. Thanks to JMA (Japan Meteorological Agency) for the image. ^AB

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