Question about a remark in a METAR report

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MarcC
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Question about a remark in a METAR report

Post by MarcC »

Hi Everyone,

I've noticed the abbreviation "ACSL" followed by directions in the remarks section of a number of METAR reports, but I'm not sure what it means. Here's an example of how it appears:

KBAB 052355Z 17016KT 10SM FEW120 BKN250 28/03 A2982 RMK ACSL NE-E SLP099 ESTMD SLP 56010

Anyone here have an idea as to what this abbreviation means?

Thanks in advance!
Marc

Ken Stewart
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Post by Ken Stewart »

It stands for AltoCumulus Standing Lenticularus and. These are "wave" clouds that are produced under ideal conditions downwind of significant mountain ranges.

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