Severe thunderstorms are expected from central Texas to middle Tennessee and Kentucky this afternoon into tonight. Large hail and damaging winds are the main threats. Heavy to excessive rainfall may produce areas of flooding today and tonight from central Texas into the lower Mississippi Valley.
This is the 博体育 central communications data switching and monitoring facility. Top-level organizational management of this facility is from the Office of Operational Systems (OPS). The Telecommunication Operations Center (TOC) is a component of the OPS and manages the 博体育 Telecommunication Gateway (博体育TG). The organizational structure of the TOC consists of four branches:
The 博体育TG is the data central communication switching and monitoring facility and has four major operational components:
This system is called the "Gateway". The 博体育TG operates and ensures continuous acquisition and dissemination of 博体育 and other domestic and foreign hydrometeorological data and products. The central switching system of the 博体育TG controls the exchange of data with remote locations. The primary remote locations are with the 博体育 specialized modeling centers (AWIPS and NCF), the commercial meteorological community, and major international communication switching centers. The international switching centers are on the Main Trunk Network (MTN) of the WMO's Global Telecommunication System. This system also operates the Operational Meteorological (OPMET) data bank. It contains aviation METAR, TAF, and SIGMET data. The OPMET data bank supports the International Civil Aviation Organization (ICAO) World Area Forecast Center (WAFC). A short history of the central switching system describes major modernization upgrade phases that began in the 1950s.
The Gateway operates web servers and file servers. The web and file servers store all nationally-generated forecast products and globally received observational data. The web service provides browser access to retrieve data and forecasts. The file servers provide a file transfer service for retrieval of operational model forecasts and observational data.
The AOMC monitors the quality of the sensors in thousands of ASOS automatic observing sites across the United States.
The AWIPS/NCF manages the AWIPS Wide Area Network (WAN) and the Satellite Broadcast Network (SBN). Data streams of the SBN are called NOAAPort.
This staff manages the processes that determine the routing of data from the Central Data Switching System and establishes message heading identification content and use.