Latest news, Jul 15, 2026: Announcing BumpySkies First Class, a new subscription tier that lets you financially support this site while enjoying premium features. For starters, you can now have BumpySkies text you when your flight's turbulence forecast is ready! Read all about it in the latest newsletter.

ASA59, JFK to SFO, departing 7:36 PM EDT, Jul 21

Turbulence forecast map for ASA59, JFK to SFO

Report an issue

(Forecast data last collected at 10:00 AM EDT on Jul 21, 2026.)

Preliminary forecast. Check back within an hour or two of takeoff to see the most accurate route map and turbulence forecast for this flight.

  1. Takeoff from JFK at 7:36 PM EDT, Jul 21.
  2. 7:37 PM EDT: Light turbulence likely for the next 20 minutes.
  3. 7:57 PM EDT: Moderate turbulence likely for the next 4 minutes.
  4. 8:01 PM EDT: Light turbulence likely for the next 2 minutes.
  5. 8:03 PM EDT: Moderate turbulence likely for the next 2 minutes.
  6. 8:05 PM EDT: Light turbulence likely for the next 1 minute.
  7. 8:06 PM EDT: Moderate turbulence likely for the next 2 minutes.
  8. 8:08 PM EDT: Light turbulence likely for the next 54 minutes.
  9. 9:02 PM EDT: Calm skies for the next 2 hours and 6 minutes.
  10. 11:08 PM EDT: Light turbulence likely for the next 52 minutes.
  11. 12:00 AM EDT: Moderate turbulence likely for the next 1 minute.
  12. 12:01 AM EDT: Light turbulence likely for the next 45 minutes.
  13. 12:46 AM EDT: Calm skies for the next 11 minutes.
  14. 12:57 AM EDT: Light turbulence likely until you land.
  15. Landing at SFO at 1:08 AM EDT.

Get notified about a future ASA59 flight First Class

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.

šŸ“£ To stay informed about updates to BumpySkies, subscribe to the free newsletter:

You can also browse past newsletter issues.

BumpySkies is free, and stays online thanks to its subscribers.

If you find this service helpful, please consider subscribing to BumpySkies First Class. For $5 a month you'll help keep BumpySkies runningā€”and you can set up turbulence-forecast notifications for your own flights.

For best results, try it shortly before departure.

(Or, see a random upcoming flight's forecast.)