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<br />data base for later retrieval. Since automated systems vary greatly in their <br /> <br />ability to screen incoming data and diagnose problems, sophisticated data <br /> <br />processing software is needed to provide an accurate representation of the <br /> <br />current hydrologic conditions of a watershed. Poor data will obviously result <br /> <br />in poor forecasts. <br /> <br />. <br /> <br />E.3. Flood Forecast Software <br /> <br />. <br /> <br />The flood forecast software consists of various techniques and procedures that <br /> <br />can be used to post, process, and display data, warn community officials of <br /> <br />critical increases in rainfall and river gages, provide flood forecasts and <br /> <br />warnings, and provide advisory forecasts based on rainfall forecasts or other <br /> <br /> <br />predictions. Various levels of sophistication are available in computer <br /> <br /> <br />software. A community's choice of software will depend on its needs and its <br /> <br /> <br />computer resources. The following flood forecast software capabilities can be <br /> <br />obtained from private vendors: <br /> <br />o Precipitation and river gage data collection <br /> <br />o Quality control of input data <br /> <br />o Store and forward data <br /> <br />o Display of input precipitation data in tabular or map form <br /> <br />o Display of river gage data <br /> <br />o Visual or audible alarm based on excessive precipitation rate or <br /> <br />predetermined rise in river (rate of rise) <br /> <br />o Hydrologic models <br />o Advisory forecast information in which forecast rainfall can be input <br /> <br />to determine resulting river forecast <br /> <br />o Linkup to the closest NWS forecast office <br /> <br />35 <br />