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National Weather Service Warnings for Flash Floods and Debris Flows Alex Tardy - Meteorologist Weather.Gov Building a Weather-Ready Nation Warning Notification Flash Flood Watch potential for FEMA alert app heavy rain exceeding


  1. National Weather Service Warnings for Flash Floods and Debris Flows Alex Tardy - Meteorologist Weather.Gov Building a Weather-Ready Nation

  2. Warning Notification  Flash Flood Watch – potential for FEMA alert app heavy rain exceeding thresholds today or tonight  Flash Flood Warning – heavy rain is occurring or imminent and flooding is expected along with possible debris flow for “defined area”  Threshold for rainfall (rate per hour) would be met and burn scar would be mentioned in Flash Flood Warning if affected Building a Weather-Ready Nation W th /S Di

  3. TV and radio EAS alerts Wireless emergency alerts Building a Weather-Ready Nation

  4. NWS Warning polygon Wireless Emergency Alert in polygon Building a Weather-Ready Nation

  5. Monitoring weather from the Emergency Operations Center and NWS NWS San Diego Building a Weather-Ready Nation

  6. Rain showers on Weather Radar Showers came in late Wednesday evening October 3 (Orange County) Building a Weather-Ready Nation

  7. Rainfall from Showers Building a Weather-Ready Nation

  8. https://www.wrh.noaa.gov/sgx/kml/holyfire.php Building a Weather-Ready Nation

  9. National Weather Service Flash Floods and Debris Flows Building a Weather-Ready Nation

  10. Cranston Fire Scar Burn assessment USGS and USFS report Building a Weather-Ready Nation

  11. Rainfall can be localized Monsoon thunderstorm Building a Weather-Ready Nation

  12. Rainfall Distribution Radar estimated (no gauges) Building a Weather-Ready Nation

  13. Flash Flood monitoring Basin level for each drainage Building a Weather-Ready Nation

  14. Force and depth of flash flood debris flow Building a Weather-Ready Nation

  15. Atmospheric River BIG storms Jet Stream highest moisture in yellow and red Building a Weather-Ready Nation

  16. Winter Storm Rainfall is widespread but localized heavy This type of “embedded rainfall” can cause high rain rates and debris flows Building a Weather-Ready Nation

  17. TADD program Partnering with Caltrans Weather.Gov http://www.nws.noaa.gov/os/water/tadd/ Building a Weather-Ready Nation

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