Automated Flash Flood Forecasting Systems ¿Fact or Fantasy? International Workshop on Flash Flood Forecasting San Jose, Costa Rica, March 2006 Session 2: Emerging Technologies
Urban Drainage and Flood Control District
Motivation
Early Prediction & Notification Meteorological Support (27 years) National Weather Service Urban Drainage and Flood Control District (Private Meteorologist) Local Flood Warning Program early notification, forecasting, detection and warning capabilities (Basin-Specific Flood Warning Plans) EOC Activation communications, weather/flood monitoring, early mobilization, coordination
Our Major Dilemma—Time
ALERT Systems Automated Local Evaluation in Real-Time
ALERT weather station ALERT Rain Gage ALERT stream gage co-located with USGS river gaging station ALERT rain/stream gage Automated Flood Detection
Typical ALERT Site
Public and Emergency Services Webservers
ALERT Mesonet—before the storm
Real-Time Rainfall & Stream Levels
Emerging Technologies Internet-driven paging & alarming (push & pull) GIS integration using XML & SVG (the new Internet language) Multiple data source integration Multiple data source integration Real-time flood inundation mapping Real-time flood inundation mapping Build your own custom displays Build your own custom displays Data processing & analysis by others Data processing & analysis by others Decision support for emergency managers
Rainfall Rate Alarms Automatically disseminated via and text messaging
Automated Alarm Notifications cell phones/computers/pagers/PDAs
Data Integration One-Stop Shopping
Rainfall Data Integration ALERT Rain Gage NetworkALERT & CoCoRaHS
¿Automated Forecasting? You be the judge…
Synchronized Integration Animated Display TITAN model from NCAR NWS Radar ALERT Rainfall Real-time synchronization of surface rainfall measurements, radar imagery and storm track forecasting model output
Emerging GIS Capabilities
Integrated Flood Threat Recognition
Real-Time Hydrologic Models
Aviso Watch Yellow Alert Aviso Watch Yellow. Observed water levels. Boulder Creek at Boulder Falls (ALERT 4393). 9:39:36 AM MST Monday, April 18, 2005
Aviso Watch – 3000cfs Inundation
Aviso Watch Red Alert Aviso Watch Red. Forecast Basin-avg precip. Fourmile Creek at Long Gulch (Sub12). 09:54:57 AM MST Monday, April 18, 2005
Aviso Watch – 12,000cfs Inundation
Depth Inundation Zones
And sometimes we just miss the peak.
Thank you Kevin Stewart, Manager Information Services and Flood Warning Program Urban Drainage and Flood Control District Denver, Colorado & Chairman, National Hydrologic Warning Council