mostly agree
I think having a weather station on the boat is a nice idea, and would be even better if you could access the conditions remotely (say from home). Someone mentioned that you'd be measuring the resultant wind off the sail. Another possible "flaw" in using a land-based weather station is that it bases the reported wind direction on fixed calibration of North/South/East/West when you mount it. If you're ok with "north" on the weather station always representing dead ahead, and can somehow power the entire system with your marine batteries (some components on my unit at home are AC, others are DC) I've got no qualms. Even those relative measurements are telling you more than you have without instruments.
I think having a weather station on the boat is a nice idea, and would be even better if you could access the conditions remotely (say from home). Someone mentioned that you'd be measuring the resultant wind off the sail. Another possible "flaw" in using a land-based weather station is that it bases the reported wind direction on fixed calibration of North/South/East/West when you mount it. If you're ok with "north" on the weather station always representing dead ahead, and can somehow power the entire system with your marine batteries (some components on my unit at home are AC, others are DC) I've got no qualms. Even those relative measurements are telling you more than you have without instruments.