Dangerous, long-lasting heat remains across the Mid-South to Mid-Mississippi Valley, while heat expands into the Northeast for a brief period on Friday. Strong to isolated severe thunderstorms and heavy rain pose a flash flooding threat from from the southern High Plains east to the Great Lakes. Tropical Depression 12W brings heavy rain to Guam & the Marianas through Saturday. Read More >
The ISCS has two parts. The two systems are for meteorological data delivery. They use the same satellites and communication protocols. The first service is the World Area Forecast System (WAFS) in support of the International Civil Aviation Organization (ICAO) program for aviation data distribution. The second service is a Global Telecommunication System (GTS) satellite data exchange system for WMO Region IV (North America) data exchange.
The ISCS Program Manager provides additional details and a modernization project that will use new telecommunication technology.