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On a winds and temperatures aloft forecast (FB), why might the 3,000-foot wind be blank?

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  1. The winds at that level are calm
  2. Winds below 6,000 feet are never forecast
  3. That level is within 1,500 feet of the station

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References

  1. Pilot's Handbook of Aeronautical Knowledge FAA-H-8083-25C, Chapter 13 www.faa.gov/regulations_policies/handbooks_manuals/aviation/faa-h-8083-25c.pdf Checked 2026-10-09.

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