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Which cloud type often signals mountain wave activity?

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  1. Cirrus clouds high above
  2. Lenticular and rotor clouds
  3. Low fog in valleys

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References

  1. Aviation Weather Handbook FAA-H-8083-28B, Chapter 16 www.faa.gov/sites/faa.gov/files/FAA-H-8083-28B.pdf Checked 2026-10-09.

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