Latest news, Sep 4, 2026: Ocean-crossing forecasts now apply great-circle math to any long flight segments that have sparse route data, rather than drawing naively Mercator-straight lines. This should improve forecast quality for these flights. Also, I've added Austrian Airlines to the carrier list. 🇦🇹

GPD377: 19 legs

GPD377, SWF to HPN: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

BumpySkies doesn't know the flight plan yet, so Nelly the groundhog is biding her time in the airport lounge. She'll check again later.

GPD377, KJPX to PVD: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, PVD to BED: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, PHL to HYA: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, MVY to BOS: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, BOS to HPN: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, BED to HPN: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, ACY to HYA: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, HYA to TEB: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, RKD to OXC: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, YUL to OXC: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, KCQX to PWM: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, PWM to OXC: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, OXC to ACK: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, FRG to ACK: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, ACK to TEB: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, TEB to KDDH: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, KDDH to HPN: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

GPD377, HPN to TEB: no forecast yet

It's too early to give you a forecast. I don't yet know the flight plan for this leg of GPD377, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)

Get notified when this forecast is ready First Class Report an issue

📣 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 running—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.)