Latest news, May 28, 2026: BumpySkies had an outage between 3 and 9:40 AM Eastern time this morning, which affected its ability to provide some forecasts. I have found the cause, and fixed it so it won't happen again. I apologize if this affected your flight!

KLM639, AMS to SAN, departing 9:55 AM CEST, May 28

Turbulence forecast map for KLM639, AMS to SAN

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(Forecast data last collected at 8:00 PM CEST on May 28, 2026.)

  1. Takeoff from AMS at 9:55 AM CEST, May 28.
  2. 9:56 AM CEST: Calm skies for the next 3 hours and 5 minutes.
  3. 1:01 PM CEST: Light turbulence likely for the next 3 minutes.
  4. 1:04 PM CEST: Calm skies for the next 23 minutes.
  5. 1:27 PM CEST: Light turbulence likely for the next 5 minutes.
  6. 1:32 PM CEST: Calm skies for the next 18 minutes.
  7. 1:50 PM CEST: Light turbulence likely for the next 1 hour and 10 minutes.
  8. 3:00 PM CEST: Calm skies for the next 13 minutes.
  9. 3:13 PM CEST: Light turbulence likely for the next 1 hour and 10 minutes.
  10. 4:23 PM CEST: Calm skies for the next 20 minutes.
  11. 4:43 PM CEST: Light turbulence likely for the next 1 hour and 48 minutes.
  12. 6:31 PM CEST: Moderate turbulence likely for the next 8 minutes.
  13. 6:39 PM CEST: Light turbulence likely for the next 1 minute.
  14. 6:40 PM CEST: Moderate turbulence likely for the next 6 minutes.
  15. 6:46 PM CEST: Light turbulence likely for the next 27 minutes.
  16. 7:13 PM CEST: Calm skies for the next 24 minutes.
  17. 7:37 PM CEST: Light turbulence likely for the next 46 minutes.
  18. 8:23 PM CEST: Calm skies for the rest of the flight.
  19. Landing at SAN at 8:33 PM CEST.
Nelly

Nelly says: Bumpy skies can be scary, but they're not dangerous!

See our turbulence safety page for more information, including links to other resources for nervous fliers.

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