Post by iconPost by TSIONA | 2011-11-27 | 17:19:18

Hi Cvetan,
As you know, wind forecasts are available on Ugrib site at least three hours before they are applied on VirtualRegatta at 08h00 or 20:00 (UTC+1).
Which of those forecasts do you use for your route calculation: the VR forecasts or the Early ones ?
Thank you - best regards and good luck in VORG.

commenticon 7 Comments
Post by iconPost by zezo | 2011-11-27 | 17:38:19
The early ones. 2 hours before the VR games and 1 hour before the VOR.

Only about 3 days of forecast are available at the public NOAA serveres 3 hours before the game update, which is fine if you're close tho the goal, but partial forecast may be misleading if you look at longer tracks.
Post by iconPost by BlueBlue | 2011-11-27 | 18:41:57
What site do you get your weather from? I have been wanting to load data in to Expedition software and see the difference in routing just for fun, but I can't seem to find the correct files for the 1 degree data. What weather files are you using? Thanks.
Post by iconPost by zezo | 2011-11-27 | 18:59:52
I use grib2 0.5 degree resolution files from http://nomads.ncep.noaa.gov/pub/data/nccf/com/gfs/prod/

Most tools did not support grib v.2 last time I checked, but that was two years ago.
Post by iconPost by BlueBlue | 2011-11-27 | 19:12:12
Thanks. So to clarify, would you use the file

http://nomads.ncep.noaa.gov/pub/data/nccf/com/gfs/prod/gfs.2011112712/gfs.t12z.master.grbf00.10m.uv.grib2

as the proper wind for the next 12 hour race segment?
Post by iconPost by zezo | 2011-11-27 | 23:57:40
The forecasts that the games use are
gfs.t00z.master.grbf06.10m.uv.grib2 and gfs.t12z.master.grbf06.10m.uv.grib2

VR used the wrong forecst for years - gfs.t00z.master.grbf09 insead of 06, but fixed it two months ago.
Post by iconPost by fab | 2011-11-28 | 14:07:16
you can easily convert grib2 to grib1 using the cnvgrib utility : http://www.nco.ncep.noaa.gov/pmb/codes/GRIB2/

(it can be built on windows using Cygwin )
Post by iconPost by BlueBlue | 2011-11-28 | 15:39:20
Thanks again.

@fab: Expedition software supports reading grib2 files, so no need for conversion, but thanks.

@zezo: Thanks for providing a great strategic tool and congratulations on a great finish in leg 1.
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Atlantic record bugg zezo Goto Lizard
3
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Figaro 3 Polars Winches
24
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Bit Sailor Router in RealSail
2
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Modification de destination
1
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Silent debugging
14
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How to manage buoys during absence
6
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Vela- route choosen by your mom
6
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VR Team ranking race criteria
1
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No news from Virtual Regatta about VOR (the ocean race).
1
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Log-in VR game marathon..
5
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VR Dashboard
5
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Dashboard - Precdicted Time ATLANTIC RECORD
1
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the prawn star
9
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polars virtual regatta
8
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how to convert Grib files to Grib2?
3
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VSR, XP points
7
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Predicted times
3
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Nord Stream *3*
11
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Game on 12Z, but Zezo still working with 06Z
3
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race wait points
1
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special boats?
7
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VR Dashboard in Firefox?
6
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ESCARGOT CLASS
11
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Los Angeles - Honolulu
26
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Rounding a Buoy
12
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VR Waypoint Heavy Bug Reporting
3
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Time of ending Jules Verne
4
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Shore detection by Zezo
2
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Nord Stream Race 2
7
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Trying to Break the VR Map Mistery !
3
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Navigating to "xxx.0" TWA
26
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Tara4 - no refresh
2
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Jules Verne: Inconsistency of headings and speeds, simulation !!
5
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VR, Zezo, Qtvlm card offsets
2
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Island's coordinates
34
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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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