Post by iconPost by arthurdayne | 2018-01-13 | 18:30:06

Right now (17h30, paris), Zezo says that at 19h il will have 19.9kt of wind. So I changed my sale from LS to CO. But when I look at VR prediction, I will have in 1 or 2 hours between 17.5 or 18kt of wind. So I should keep my LS.

Who should I believe?

commenticon 6 Comments
Post by iconPost by arthurdayne | 2018-01-13 | 18:32:23
Or maybe VR updates only at 18h, not before?

Edit : and now Zezo predicts 17.6 (gfs.T12z+210). So maybe we I to wait the very last zezo grib?I did not remember that kind of problem in the past
Post by iconPost by zezo | 2018-01-13 | 18:37:45
You should probably trust VR (especially before 17:30 CET)

Those 20 knots come from the previous GRIB

Post by iconPost by arthurdayne | 2018-01-13 | 18:40:33
OK thanks!

I should have wait...
Post by iconPost by zezo | 2018-01-13 | 18:54:36
There is always some difference between 17:00 and 19:00 (and every 6 hours thereof)

It just does not matter most of the time. But sometimes it does (with the sail selection now) or is quite visible (with 10 degree difference in the doldrums or around the center of a moving weather system)
Post by iconPost by arthurdayne | 2018-01-13 | 18:57:39
OK thanks, now I will know that I have to follow VR. Even right now I have 0.5kt of different at my position! 17.9 at Zezo (=>LS), 18.4 at VR => C0. Of course I loose more time because of the penalties, I should have not changed

Post by iconPost by zezo | 2018-01-13 | 19:02:54
VR does interpolation between the old and new forecast for the same moment in time (19h CET) and I don't, just switch between the two at 17:30.

So up to 16:30 everything is in sync. Then a difference may start appearing. At 17:30 the difference will change somehow and the forecasts will start converging towards 19:00
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Tara Ocean 4
6
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Solo Maitre Coq
21
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Adjustable timeshift ?
3
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gate crossing question
7
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Expanded View on PC
3
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Panic at VR Nord
7
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Delays during the sail changes, or directions changes
3
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(Game wind = Zezo wind ) ⍯ (Grib winds = Windy.com)
7
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VR ending the ELO ranking.
34
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NMEA feed
128
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Dashboard Map Track Label not including the segment.tag
5
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VR ingame time
6
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VIRTUAL REGATTA and Phillip Ganier. Worst and worst every day...
7
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beta.realsail.net
2
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Escort Frigate
6
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Out of memory. If you are the developer of this content ....
17
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Question about GFS Grib
5
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RORC Caribbean 600
14
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sliding VSR
16
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Trying to use Zezo to select best combination of sails to select
7
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TARA OCEAN 3
9
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RORC Transatlantique Race
6
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Game appears stuck on 00Z weather from yesterday
4
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Sydney to Auckland
28
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Personal Message pages deleted
7
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New zezo fonction
2
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VR Ranking 2021
7
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Autosail malfunction
3
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Comments from a newbie to "long term" routing
1
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Massive thanks to Cvetan
7
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Fleet section mode record not working
2
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Possible routes on the Map tab
3
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Purple skippers on VR Dashboard
3
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UTC or CET time ?
2
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multiple routes?
2
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Real Sail
4
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Map a little gloomy
8
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Trophée Jules Verne - Route à l'envers ?
2
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Looks like weather updates offline for next 18h
26
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Bring the good old days back
7
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All.grib 0.0k ?
9
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different speed
3
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Strange 0.5 mille VR Scale
3
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Just an idea for a new feature...
7
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Connexion impossible
1
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Donations
7
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New leader - seems to be using Zezo
38
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Bravo Zezo
4
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zezo : Huge job - Huge thx
2
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Difference between boat speed display on VR, dashboard and polar curves
7
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Vendée Globe: Track lines falling too short of ischrones
8
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Tara Ocean
29
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VR winds currently not up to date ?
1
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"Sails Change" within the Programming
3
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RORC Transat finish moved to Antigua
3
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Weather update not appearing...
19
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Dashboard not updating.
6
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Boats Skins Vendée Globe
3
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Safari on iOS: Bearing lines gone
3
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Wrong coordinates in zezo
2
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Winds in the chart do not show changes between 78 hours and 114 hours forecast
2
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Decoding of All grib
6
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I CANNOT ENTER FOR 3 HOURS IN THE GAME
23
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Why the vc data is yellow underlined ?
3
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Jules Verne 2020 - "Start NOW" discrepancy VS real time
7
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Would like to know the reasenable time to update your pisition on zezo
16
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Arrival Vendée Globe in Normandy !!?
4
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MIssing the Obvious: How to get Zezo routes back into VR
2
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VG 2020-01-02 has Zezo a problem with geographic or ...
8
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How to retrieve a waypoint (TWA/HDG) that already passed...
16
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Track duration window
3
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Ways to bypass the client to give orders?
6
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Problem to Load zero route in windy.com
40
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French tutorial for zezo
4
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boat positioning
2
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Export routes in GPX format ?
4
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Sail selection issue ?
11
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Your friends boats in Google Earth
2
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Delay in Wind update ?N
1
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VR Dashboard
54
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