Sirius Marine Weather information is provided by WSI Corporation, an industry-leading, professional weather service supplier. For over 25 years, WSI has served federal, state and local governments as well as the marine, aviation, agriculture, media and energy industries. They're experts in analyzing, forecasting and presenting weather information. WSI combines NOAA data with information from other government, research, commercial and proprietary sources, and creates timely, and useful weather information using the highly reliable, sophisticated analysis methods and processes in practice today. Impressive, right?