@idefix37 Thanks a lot for looking into it !
I tried something different : importing my gpx file in the Flight planner plugin !!! and it kinda works : I do have to set an average speed which is not ideal but apart from that, the weather map changes with the position along the route.

In the gpx file I'd like to display, for each point I have a timestamp and a position (lat/long). There is no speed in the file.
But you are right that if you were to calculate the speed, it would be highly variable, anywhere btw 0 and 30kts.

@idefix37 Too bad. Thanks anyway.

@idefix37

In the video link I posted above, starting at 3'50", you see the whole procedure.
The video is from 3 years ago so things might have changed but he doesn't need to select boat trip or to enter any boat speed, straight away, the weather and the points on the route are in sync.

When I do it, I get this

The weather doesn't change as I move the mouse left to right.
If I do click on boat (which again was not needed in the video), and select a speed, the weather is in sync (but it's a premium feature).

@idefix37 Thanks for your answer.
My question really is about having the weather in sync with the position on the route.
Once the gpx is loaded in the planner, when I move the mouse left/right (in the bottom part of the screen), I can see highlighted the corresponding waypoint in the route but the weather doesnt change, it doesnt sync with the date of that particular point on the route.
As seen on the video that I linked, it was possible in the past and I was wondering if it was still the case.
Maybe it is a premium feature only ?
Thanks,

A few years ago, it was possible to do this :

(starting at 3'50")
Uploading a boat routing in gpx and when hovering in the planner, the weather would update accordingly and the position on the route would be highlighted.
Is it still possible to do that ?
Thanks in advance.

@pandanade Not sure that is what you're after but on the Initiatives Coeur website (Sam Davies) you can click on the "Routages" button (top left) and it'll show routings for all the boats.
https://live.initiatives-coeur.fr/vendee-globe/2024

@kbsali it works, thanks a lot !
When you update, will you post the new URL on this feed ?

@kbsali I dont see it in the "Windy plugins" list. Should it appear there or do I have to download it from a different URL ?

@idefix37
Here is the URL

At 25'50", they mention the sailor Leonard Legrand (who I believe is part of the Sodebo Ultim team, on standby for the Trophee Jules Verne)

@vsinceac Me again, with a few more questions, still concerning the GFS model.

In your message, you said "runtime today at 06hUTC, validity for 07hUTC, 515.1 GB, all params/levels"
I believe you meant 515.1 MB, right?
515MB x 209 validities = 110GB for a full run.

Do you know of a website where I can follow live the release of the different validities by the NOAA?
I know about this one (https://www.nco.ncep.noaa.gov/pmb/nwprod/prodstat/index.html#TARGET).
But is there a way to follow the release progress at the file level?

One last question:
Is there a difference in accuracy between the 4 daily updates?
I read in an old article (from 2012) that the 00z and the 12z were better than the other two.
I was surprised to read that and maybe it was the case back then but do you know if that is still the case?

Thanks

@vsinceac Thanks a lot for such a thorough reply. Slowly, thanks to people like you, I understand more and more about the details of these weather updates.

FYI, my interest in the "precise" timing of Windy is because I play an e-sailing game (called Virtual Regatta) and it uses real world weather data (GFS model, only wind speed and direction).
So, for example, when the 00z file is released (@3h40 UTC), the game's weather starts to update (takes around 2h) and often, it is interesting to look at Windy but I wanted to know if what Windy shows is still the old (18z) data or already the new one (00z) and when/how it goes from one to the other.

Again, thanks for your reply.

@vsinceac Thanks a lot for your reply. When you say "it may take a while ..." do you have a rough estimate of how long that is ? Are we talking something like 1h or much less ?

Also, I'm curious about the file size that you mentioned, 500MB : do you know how big is the grib2 file, covering the whole 16day forecast ?

@Korina Thanks for this post.
I'm interested in the GFS model in particular.
When a new grib file is released by the NOAA, how long does it take Windy to show it ? Is it pretty much instantaneous (a few minutes) or does it take longer ?