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The ALERT Flood Warning System, implemented in San Diego County, utilizes real-time radio telemetry to provide continuous monitoring of weather conditions through 61 rain gauges, 11 stream gauges, 11 lake levels, and 10 weather stations. This system plays a crucial role in assessing flood risks, disseminating warnings to relevant agencies, and providing actionable data for disaster preparedness and response. It assists the National Weather Service with accurate forecasts and timely alerts, benefiting both public safety and historical analyses.
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The ALERT Flood Warning System and its Uses Rand Allan, Associate Meteorologist rallanpw@co.san-diego.ca.us (858)495-5557
Automatic Local Evaluation in Real -Time Real-time radio telemetry, continuous operations In San Diego County: 61 rain,11 stream, 11 lake, 10 weather 3 base station computers NWS internet access
ALERT groups in the United States ALERT ALERT/IFLOWS SAAS
Responsibilities of Flood Control • Maintain the ALERT system • Assess potential for flooding • Advise NWS, ODP, & Select Agencies
Responsibilities of Office of Disaster Preparedness • Coordinate relief operations when needed • Disseminate warning information to the various agencies
Responsibilities of the National Weather Service • Provide daily weather forecasts • Provide flood watches and warnings • Disseminate timely warning information to the general public
Benefits of the ALERT System • Real-Time Weather Data • Used by NWS and Flood Control to provide Nowcasting support • Used by NWS to calibrate weather radar • Provides detailed historical data for litigation, analysis, design studies, and documentation of weather events • Internet Address: http://nimbo.wrh.noaa.gov/Sandiego/local.html#Precip