National Flood Conference April 22, 2009 Victor Hom Hydrologic Services Division Office of Climate, Water and Weather NOAA’s National Weather Service National

National Flood Conference National Flood Conference April 22, 2009April 22, 2009

Victor HomVictor HomHydrologic Services DivisionHydrologic Services Division

Office of Climate, Water and WeatherOffice of Climate, Water and WeatherNOAA’s National Weather ServiceNOAA’s National Weather Service

National Weather Service and National Weather Service and Federal Emergency Federal Emergency

Management Agency’s National Management Agency’s National Flood Insurance Program Flood Insurance Program

Related ActivitiesRelated Activities

2

National Flood Conference 2009National Flood Conference 2009

NWS and FEMA NFIP Related Activities

Objectives:

1.1. Review the inter-relationship and inter-Review the inter-relationship and inter-dependencies of the FEMA’s NFIP, USGS dependencies of the FEMA’s NFIP, USGS NSIP, and NOAA’s mission.NSIP, and NOAA’s mission.

2. Discuss NOAA NWS efforts in Decision Support, Risk Communications, and Forecast Uncertainty and FEMA’s RISK MAP Strategy.

3. Provide update on NOAA NWS AHPS Flood Mapping Efforts.

“Water Predictions for Life Decisions”“Water Predictions for Life Decisions” Page 3

NWS MissionNWS Mission

• NOAA's National Weather Service provides NOAA's National Weather Service provides weather, hydrologic, and climate forecasts weather, hydrologic, and climate forecasts and warnings for the United States, its and warnings for the United States, its territories, adjacent waters and ocean areas, territories, adjacent waters and ocean areas, for the protection of life and propertyfor the protection of life and property and the and the enhancement of the national economy.enhancement of the national economy.


NOAA NWS Advanced Hydrologic Prediction Service (AHPS)

NOAA NWS Advanced Hydrologic Prediction Service (AHPS)

For more info, go to the AHPS Web Page:http://www.weather.gov/ahps

http://www.weather.gov/ahps


Flood Forecasting and Flood Mapping Dependencies

Flood Forecasting and Flood Mapping Dependencies

Precipitation Analyses Precipitation Analyses

Streamgage Analyses Streamgage Analyses

GeodeticsGeodetics

Engineering/Sciences Engineering/Sciences

Communications Communications


PrecipitationPrecipitation

For more info, go to the Hydrometeorological Design Studies Center’s Web Page:http://www.weather.gov/oh/hdsc/http://www.nws.noaa.gov/oh/hdsc/studies/prcpfreq.htmlgo to NSSL’s Web Page: http://www.nssl.noaa.gov/divisions/warning/swat/dualpol.php

Precipitation Analysis (historical, real-time)

• Precipitation Data used to derive rain-runoff,• Runoff is used to compute discharge, and• Discharge is used in the models to produce flood forecasts and/or flood maps. •FEMA Guidelines and Specifications for Flood Hazard Mapping Partners Volume 1 – Design Storm Data

Dual PolDual Pol

http://www.weather.gov/oh/hdsc/

http://www.nws.noaa.gov/oh/hdsc/studies/prcpfreq.html

http://www.nssl.noaa.gov/divisions/warning/swat/dualpol.php


StreamgageStreamgage

For more info,

go to the USGS NWIS Web Page:http://waterdata.usgs.gov/nwis/swor NOAA NWS AHPS Web Page: http://www.weather.gov/ahps

Streamflow Analysis (historical, real-time)

• Historical Streamgage Data used in NWS Model Calibration• Real time adjustment to NWS River Forecast System.• FEMA Guidelines and Specifications for Flood Hazard Mapping Partners Volume 1 – Reference to Bulletin 17B, Guidelines for Determining Flood Flow Frequency.

http://waterdata.usgs.gov/nwis/sw

http://www.weather.gov/ahps


Geodetics and TopographicGeodetics and Topographic

For more info on Geodetics,

go to the NOAA NGS Web Pages:http://www.ngs.noaa.gov/http://www.ngs.noaa.gov/heightmod/

For more info on Hi-ResTopo, go to the NOAA CSC Web Pages:http://www.csc.noaa.gov/crs/tcm/http://maps.csc.noaa.gov/TCM/

The handling of the geodetics is managed through the The handling of the geodetics is managed through the National Spatial Reference System (NSRS) and the National Spatial Reference System (NSRS) and the Height Modernization Program by NOAA’s National Height Modernization Program by NOAA’s National Geodetic Survey.Geodetic Survey.

NOAA ‘s Coastal Survey Center NOAA ‘s Coastal Survey Center maintains Digital Coast which houses maintains Digital Coast which houses Coastal Lidar Data.Coastal Lidar Data.

http://www.ngs.noaa.gov/

http://www.ngs.noaa.gov/heightmod/

http://www.csc.noaa.gov/crs/tcm/

http://maps.csc.noaa.gov/TCM/


Engineering/Sciences Engineering/Sciences

Summit to Sea Approach to Forecasting and MappingSummit to Sea Approach to Forecasting and Mapping- - Advanced Hydrologic Prediction Service (AHPS) and Flood MappingAdvanced Hydrologic Prediction Service (AHPS) and Flood Mapping- Coastal Estuary River Information System (CERIS)- Coastal Estuary River Information System (CERIS)- Coastal and Inland Flood Observation and Warning (Coastal and Inland Flood Observation and Warning (CI-FLOW)CI-FLOW)- NOAA in the Carolina’sNOAA in the Carolina’s


1. Map the Risk 1. Map the Risk

2. Measure the Risk 2. Measure the Risk

3. Monitor the Risk3. Monitor the Risk

4. Manage the Risk 4. Manage the Risk

* Provide Decision Support Assistance to our key partners and the EM community* Better quantify uncertainty and assessment of the risk.

Flood Risk Communications Flood Risk Communications

… … NWS Flood warnings for Areas Prone to NWS Flood warnings for Areas Prone to the 50% to 10% Annual Chance Floods.the 50% to 10% Annual Chance Floods.


PlanningPlanning

Mapping Mapping

Assessment Assessment

Potential Future NOAA NWS and FEMA Collaboration

Potential Future NOAA NWS and FEMA Collaboration

… … moving from Static moving from Static to Dynamic to Dynamic

Assessment in Near Assessment in Near Real-time.Real-time.






MappingMapping


PlanningPlanning


NOAA NWS AHPS Flood Mapping

NOAA NWS AHPS Flood Mapping

The development of NOAA’s NWS AHPS Flood Mapping started with:

• USGS North Carolina Water Science Center

• NOAA Coastal Services Center

• North Carolina Flood Mapping Program

• Inland Flood Forecasting and Warning System Act of 2002, Pub. Law No. 107-253

For more info, see For more info, see USGSUSGS Scientific Investigations Report 2007-5032Scientific Investigations Report 2007-5032::http://pubs.usgs.gov/sir/2007/5032/pdf/SIR2007-5032.pdf

http://pubs.usgs.gov/sir/2007/5032/pdf/SIR2007-5032.pdf


NWS North Carolina and Gulf Coast Area Libraries

NWS North Carolina and Gulf Coast Area Libraries

For access to the current flood map libraries, go to the NOAA NWS AHPS Web Link:http://www.weather.gov/ahps/inundation.php

From NC Projects:From NC Projects:

•Established Flood Mapping Established Flood Mapping Technique in cooperation with Technique in cooperation with USGS Water Science Center/NC USGS Water Science Center/NC Flood Mapping Program, Flood Flood Mapping Program, Flood Categories, Flood Depths, AHPS Categories, Flood Depths, AHPS Flood Mapping Interface.Flood Mapping Interface.

From Gulf Coast Projects:From Gulf Coast Projects:

•Quality Assurance, Quality Checks, Quality Assurance, Quality Checks, Additional Modeling Techniques, Additional Modeling Techniques, Field Review Process, In-house and Field Review Process, In-house and Contract LaborContract Labor

http://www.weather.gov/ahps/inundation.php


NWS Eastern Regional 2009AHPS Inundation Mapping Activities

NWS Eastern Regional 2009AHPS Inundation Mapping Activities

Example of Partnership with USGS and Local City Officials

NOAA NWS Newest AHPS Flood Map Library

NOAA NWS Newest AHPS Flood Map Library


NWS Southern Regional 2009AHPS Inundation Mapping Activities

NWS Southern Regional 2009AHPS Inundation Mapping Activities

Example of Partnership with Region Basin Commissions

Lower Colorado River Authority, San Antonio River Authority

Partnership among NWS and Regional Basin Commission to develop Partnership among NWS and Regional Basin Commission to develop flood inundation maps at NWS AHPS Forecast locations by end of 2010.flood inundation maps at NWS AHPS Forecast locations by end of 2010.

•Partner will provide stream data, Partner will provide stream data, cross sections, and rating curves cross sections, and rating curves needed to calibrate models.needed to calibrate models.

•Partner and WGRFC will provide Partner and WGRFC will provide technical guidance and local technical guidance and local hydrologic expertise to help set-up, hydrologic expertise to help set-up, run, and validate the models.run, and validate the models.

•Added Benefits:Added Benefits: QAQC Templates, QAQC Templates, CRS CreditsCRS Credits


NWS Eastern Regional 2009-2010 AHPS Inundation Mapping Activities


Example of Partnership with USACE, Basin Commissions

Delaware River

Partnership among NWS, USACE, and Regional Basin Commission to Partnership among NWS, USACE, and Regional Basin Commission to develop flood inundation maps at NWS AHPS Forecast locations by end develop flood inundation maps at NWS AHPS Forecast locations by end of 2010.of 2010.

•Partner will provide stream data, cross Partner will provide stream data, cross sections, and rating curves needed to sections, and rating curves needed to calibrate models.calibrate models.

•USACE will provide technical guidance USACE will provide technical guidance and local hydrologic expertise to help and local hydrologic expertise to help set-up, run, and validate the models.set-up, run, and validate the models.

•Added Benefits:Added Benefits: SOW Templates, SOW Templates, Checklists, Improved GuidelinesChecklists, Improved Guidelines

US Army Corps of Engineers®




Example of Partnership with River Basin Commission

Susquehanna River

Partnership among NWS and Regional Basin Commission to develop Partnership among NWS and Regional Basin Commission to develop flood inundation maps at NWS AHPS Forecast locations by end of 2010.flood inundation maps at NWS AHPS Forecast locations by end of 2010.•Partner and contractor will provide Partner and contractor will provide stream data, cross sections, and rating stream data, cross sections, and rating curves needed to calibrate models.curves needed to calibrate models.

•Partner and Contractor will provide Partner and Contractor will provide technical guidance and local hydrologic technical guidance and local hydrologic expertise to help set-up, run, and expertise to help set-up, run, and validate the models.validate the models.

•Added Benefits:Added Benefits: Depth Raster Depth Raster Improvements, Metadata Improvements, Metadata ConsistenciesConsistencies


NWS Central Regional FY09-FY10 AHPS Inundation Mapping Activities

NWS Central Regional FY09-FY10 AHPS Inundation Mapping Activities

Example of Partnerships with USGS and State

Central Indiana

Partnership among NOAA, USGS, Polis Center, and Indiana to develop Partnership among NOAA, USGS, Polis Center, and Indiana to develop near real-time inundation maps based on NWS Forecasts and show the near real-time inundation maps based on NWS Forecasts and show the infrastructure at risks for 20 forecast points by end of 2010.infrastructure at risks for 20 forecast points by end of 2010.

•USGS will provide stream gage USGS will provide stream gage data, cross sections, and rating data, cross sections, and rating curves needed to calibrate models.curves needed to calibrate models.

•The USGS Water Science Centers The USGS Water Science Centers provided technical guidance and provided technical guidance and local hydrologic expertise to help local hydrologic expertise to help validate the models.validate the models.

•Added Benefits:Added Benefits: 1D/2D Hydraulic 1D/2D Hydraulic Modeling, HAZUS, CRS CreditsModeling, HAZUS, CRS Credits


NWS National/Regional 2010 AHPS Inundation Mapping Activities

NWS National/Regional 2010 AHPS Inundation Mapping Activities

.

Example of Partnership with Academia and State

Kansas, Wisconsin, Iowa, North Carolina

Partnership among NWS, State, and Academia to develop flood Partnership among NWS, State, and Academia to develop flood inundation maps at NWS AHPS Forecast locations by end of 2011.inundation maps at NWS AHPS Forecast locations by end of 2011.

•Partner will provide stream data, Partner will provide stream data, cross sections, and rating curves cross sections, and rating curves needed to calibrate models.needed to calibrate models.

•Academia will provide technical Academia will provide technical guidance and local hydrologic guidance and local hydrologic expertise to help set-up, run, and expertise to help set-up, run, and validate the models.validate the models.

•Added Benefits:Added Benefits: Evaluation of Map Evaluation of Map Maintenance.Maintenance.

24

NOAA National Weather ServiceNOAA National Weather Service

• NOAA NWS AHPS Flood Mapping depends on partnerships, NOAA NWS AHPS Flood Mapping depends on partnerships, diligence, dedication, and commitment. diligence, dedication, and commitment.

• NOAA NWS AHPS Flood Maps help better convey the flood NOAA NWS AHPS Flood Maps help better convey the flood risk in association with the flood forecast and warnings.risk in association with the flood forecast and warnings.

• NOAA is working collectively on a summit to the sea NOAA is working collectively on a summit to the sea approach in saving life and property.approach in saving life and property.

Documents

National Flood Conference April 22, 2009 Victor Hom Hydrologic Services Division Office of Climate, Water and Weather NOAA’s National Weather Service National