wind forecast
Post by iconPost by happysailing | 2016-12-13 | 19:42:03

not sure but I am still at the GFS 12Z wind forecast while we are past 6:30 pm (UTC + 1 here in Switzerland). I had the GFS 6Z forecast until 5 PM, then it switched to GFS 12Z right at 5 pm. It look like that the forecast is delayed by 6 hours, as a result wind forecast is different than on the VR chart.
am i doing something wrong?
thank you
great tool by the way

commenticon 8 Comments
Post by iconPost by zezo | 2016-12-13 | 20:44:32
The 12Z forecast is started at 12Z and becomes available at 16Z, so that's expected.

About the differences - it's unclear when and how exactly VR switches from one model to the next, so some differences around the update time are not unexpected. If sailing at optimum downwind/upwind TWA you should stick with the game interface.
Post by iconPost by happysailing | 2016-12-13 | 21:05:38
thanks man!
Post by iconPost by zezo | 2016-12-14 | 01:35:03
The bad news is that I just checked my in-game from the point of view of another boat and there is half knot difference in wind speed. Which meeans that the game engine uses different weather data than the user interface.

You can actually do the same test by clicking another boat and comparing the wind speed at the cursor and in the info panel. The actual difference will depend on the difference between the forecasts/GFS model used/interpolation details.
Post by iconPost by petole | 2016-12-14 | 09:22:28
I agree. VR does not respect its own rules....
Post by iconPost by falcon49 | 2016-12-14 | 11:00:41
This morning, the forecast from VR and ZEZO seems very different Have you an explanation
Thanks for help
Post by iconPost by baki38 | 2016-12-14 | 20:38:01
Hello at 19h30 the Wind is very different from Vr and ZEZO, VR 16.6 and ZEZO 35.

my position is around 171 04 00/ 51 20 16
Thank you
Post by iconPost by zezo | 2016-12-14 | 20:49:03
I think you are looking at latitude 171E vs. 171W
Post by iconPost by Inicio | 2016-12-18 | 17:41:17
Not wind at all for 16:40 +72HH
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