Weather Routing: Comfortable Passagemaking Fair winds and moderate seas make for great passagemaking A weather forecast—like an old-school dead-reckoning plot—will decrease in certainty with the passage of time. Over the past five years of arranging offshore charters aboard our Swan 48, Isbjørn, and our Swan 59, Icebear, we’ve tempted the gods by consistently breaking the cardinal rule of cruising—sailing to a schedule. However, thanks to a fundamental understanding of big-picture weather patterns and a willingness to be flexible once underway, we’ve learned that even the toughes...