photo #6323984

What a difference a day makes. Two photos taken 24 hours apart, 8:30 am local time. The only difference, it was 56% humidity yesterday, 86% humidity this morning at 34,000 ft. (10,000 meters).Next time you think they are spraying, use this site. Select RH, hPa 250 (34,000 ft.), zoom in and select your area, you'll soon find out it's all contrails, and it depends on how high the humidity is at flight level.https://earth.nullschool.net/#current/wind/isobaric/250hPa/anim=off/overlay=relative_humidity/orthographic=-122.58,35.12,2001