WSI Launches Tools for Worldwide Wind Power Arena

Weather Leader Announces WSI WindCast™ & Alerting Service for Wind Farm Owner/Operators & Transmission/Distribution Providers

Andover, MA - May 4, 2009 — Weather Services International (WSI), the most trusted global weather solutions provider, today announced WSI WindCast™, a wind speed and power forecasting product, plus an innovative alerting service for the wind power marketplace. Visit WindPower 2009, booth #5882, in Chicago May 4-7, to learn more.

WSI WindCast is a graphics-based, statistical, forecasting system for the energy market providing wind power and wind speed forecasts for wind farms anywhere in the world. WSI’s new alerting service provides warnings when lightning, thunderstorms or other severe weather events are approaching wind farm locales.

Developed in response to increased worldwide demand for wind power, WSI WindCast provides highly accurate, hourly forecasts that include weather-related parameters such as: wind speed, wind direction, atmospheric pressure and temperature, all at turbine height. Using these predictions, WSI WindCast then provides accurate wind power forecasts, up to seven days out.

“Wind power is rapidly becoming an important alternative energy source for the production of electricity. Energy traders, as well as wind farm operators, understand that the most critical meteorological aspect of wind power forecasting is the highly accurate prediction of wind speed at turbine height,” said Ira Scharf, General Manager of WSI’s Energy and Risk Division. “WSI WindCast not only delivers expert measurement and prediction of wind speed in a graphical, easy to understand format, but also provides precise wind power forecasts as a result of its proven techniques.”

WSI’s lightning alert service continuously monitors the North American Precision Lightning Network, providing immediate notification via SMS text message and/or email, as well as on-screen, audible and visual alerting. It then issues all-clear messaging after the threat has subsided. WSI also plans to provide another service alerting users about conditions that may result in the formation of ice on wind turbine blades.

For more information on WindCast and all WSI wind power related services, visit WindPower 2009, booth #5882, McCormick Place Convention Center, Chicago, May 4-7; or contact Robert Boucher at 978-983-6558 or rboucher@wsi.com .

About WSI Corporation

WSI is the most trusted source of weather information across the globe. Top energy trading groups, utility companies, insurance professionals and financial institutions worldwide trust WSI to supply them with easy-to-use, timely and expert weather guidance to help anticipate market volatility, mitigate risk and make critical decisions with confidence. WSI is a member of The Weather Channel Companies and is headquartered in Andover, Massachusetts, with offices in Birmingham, England. The Weather Channel Companies are owned by a consortium made up of NBC Universal and the private equity firms, The Blackstone Group and Bain Capital. For more information, please visit us on the web at www.wsi.com or call us at 877.WSI.CORP or +44.121.233.7600.