Back in the day when 20 knots was considered blazing, a comfortable day's run was perhaps 100 or 120 miles and trips over 200 miles were rare. Today, 200-mile "day hops" and 1,000-mile delivery passages are not uncommon. This newfound freedom, though, comes at a price. While conditions may be ideal at the beginning of a voyage, things can be very different hundreds of miles away; yet traditional sources for weather information-TV or VHF-only cover a small and localized area. The result: Yachtsmen may outrun their local weather forecast before lunch.