Birdwatch Note Rating
2024-04-20 23:07:48 UTC - HELPFUL
Rated by Participant: D96348BE04BACEA9EFEA07BC8C732A7596CE5E96835D74A2A5510DBDDC83A1AB
Participant Details
Original Note:
This is normal. The length of time that a contrail lasts is directly proportional to the amount of humidity that is already in the air. The newly formed ice particles, from the jet exhaust, will continue to grow in size by taking water from the surrounding atmosphere. https://www.weather.gov/fgz/CloudsContrails# https://www.faa.gov/sites/faa.gov/files/regulations_policies/policy_guidance/envir_policy/contrails.pdf
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