NWWS is a satellite data collection and dissemination system operated by the National Weather Service (NWS).   Its purpose is to provide state and federal government, commercial users, media, and private citizens with timely delivery of meteorological, hydrological, climatological, and geophysical information.  The vast majority of  NWWS products are weather and hydrologic forecasts and warnings issued around the clock from 141 NWS offices nationwide (see Product Collection and Dissemination).

An important element of the NWWS mission is providing rapid delivery of critical NWS issued severe weather warnings and watches.   All products in the NWWS datastream are prioritized, with weather and hydrologic warnings receiving the highest priority (watches are next in priority).   This allows special handling and delivery of warning products ahead of other less critical weather forecast products.  NWWS delivers severe weather and storm warnings to users in 10 seconds or less from the time they are issued, making it  the fastest delivery system available for these very time sensitive products.

NWWS network Administration, maintenance, and field support is provided by DynCorp Information Systems LLC, under NWS contract.
Click here for NWWS brochure (requires Adobe Acrobat).