AccuWeather Inc has enhanced its custom forecast service for transportation clients. The enhancement provides all subscribers with a customized, password-protected Internet site, which includes instant access to weather products, at no additional charge. Transportation products are available, including AccuWeather travel maps, which provide details at a glance on weather that might impact travel; and Interstate AccuWeather, which provides pinpoint weather and road condition forecasts for every segment of the nation's Interstate highway system. Clients also have access to all information available on AccuWeather.com, as well as 24-hour-a-day consultation with the company's meteorologists.