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<br />transmission of data, and a base station. The base station consists of radio- <br /> <br />receiving electronic equipment and a microprocessor. Data Analysis software <br /> <br />is available to collect quality control and display data. A hydrologic model <br />to provide simulation of streamflow is also available as part of the ALERT <br />system. Many of the general capabilities of automated systems discussed above <br /> <br />ar~ available in the ALERT system. <br /> <br />. <br /> <br />. <br /> <br />G.4. IPLOWS <br />The Integrated Flood Observing and Warning System (IFLOWS) is an example of a <br />network of automated local flood warning systems. Each of the 100 counties in <br />IFLOWS has or is developing an automated local flood warning system. The <br />county systems consist of automatic radio reporting rain gages, radio relays <br /> <br />or repeaters (if required), a radio receiver, and system software. Each <br /> <br />county is usually capable of collecting and displaying real-time precipitation <br />data. All of the counties are linked to a designated State. Emergency <br /> <br />Operation Center and NWS offices, so data can be retrieved by any county, <br /> <br />State or NWS office in the IFLOWS system. Some states also have a subsystem <br />that allows for voice communication between the States, counties, and NWS <br /> <br />offices. <br /> <br />. <br /> <br />G.5. Flash Flood Alarll Gages <br />Flash flood alarm gages consist of water level sensor(s) connected to an alarm <br /> <br />or light located at a community agency that operates 24 hours a day. Stages <br /> <br />exceeding a preset level trigger the alarm. The distance between the upstream <br /> <br />alarm gage and the community determines the amount of warning time. Sixty <br /> <br />five flash flood alarm systems are now in operation. Specifications for the <br /> <br />construction of a cost-effective flash flood alarm gage system are available <br /> <br />40 <br />