Not sure about the synoptic
charts. I just choose from the big list in the Get Data section. Just curious you mentioned a version of viewfax you downloaded. I'm using the version that was called a beta version but in reality it's stable and has been out for a few years. I think it's still called the beta version though. I use windows 7 and have not had to run as admin.
I'm in
Antigua right now and I use a combination of gribs and NOAA faxes from viewfax. Also use
passage weather which has a low bandwidth version you can bookmark and pull down with sat
phone. Lastly I use the NOAA bouy reports for the
leeward islands in our case.
This allows me to bounce other models of each other and build confidence in a report or fx when there is consensus.
All require
wifi or sat
phone but we find free or nearly free
wifi everywhere in the east Carib that we have not turned on the sat phone since the passage to Tortola. If we can't get wifi is use jvcomm 32 and the Kaito reciever to pull down the NOAA faxes.
So far passage
weather has been spot on. They even timed the rain today in
Antigua down to the hour. Most rain we have had in a month. Passage weathers swell and
wind fx have been right on here too.
Good luck and keep us posted!