NOAA National Weather Service National Weather ServiceHeat Wave in the Eastern US; Heavy Rain in the Ohio Valley Dangerous, long-lasting heat is expected across portions of the Central and Southeast U.S. Showers and thunderstorms, some severe, may produce heavy rain and localized areas of flash flooding across parts of the Ohio/Tennessee Valleys into the Appalachians. Severe thunderstorms are , WeatherBug has current and extended local and national weather forecasts, news, temperature, live radar, lightning, hurricane alerts and more, The NWS Radar site displays the radar on a map along with forecast and alerts. The radar products are also available as OGC compliant services to use in your application., View the latest weather forecasts, maps, news and alerts on Yahoo Weather. Find local weather forecasts for undefined throughout the world, Find the local weather forecast now for over 3.5 million locations across the globe with AccuWeather., .