Just used google and got this from Professional Mariner
This is from that article:
Maine Maritime and other academies offer training in weather routing and meteorology. Miller believes weather routing works best when the master can discuss the route with the routing service and the home office based on real-time conditions at sea.
“They should have a dialogue with the routing service and have a mutual agreement,” he said. “You have a professional resource on shore, but also in turn have the skills and knowledge of the master at sea.”
By contrast this is the Captain of the El Yunque:
WIT: It can be called upon to provide routing information.
CDR Denning: How ----
WIT: It’s not a service that I have any interest in, so I’ve never investigated it.
CDR Denning: How would – so would you know how that would work if you did want to utilize it?
WIT: Umm, I would have to look into it, but as I said since it’s not something I am drawn to having somebody far away that’s generating computer programs giving advice or recommendations to a person who’s thinking about nothing but 24 hours a day being in the place where the weather is being experienced, I’m not devoting any my intellectual resources or my time allocation to the development of that.
Here’s what @john said back in 2007
In a world where experts and amateurs can work together to write encyclopedias and master mariners from Australia can visit gCaptain to discuss topics with mariners thousands of miles away (in real time!) I question that self-reliance is still the most important trait for a ship’s master. Instead captains need to embrace technology and work on their social skills. They need to use real time monitoring to understand conditions and communication technology to call field experts
It’s also been said that if the captain isn’t comfortable using only his own skill and judgement he should not be sailing master.
So which is it? Should the captain ever rely on outside expertise for weather routing?