NOAA NWS AHPS Flood Mapping in the Gulf

NOAA NWS AHPS Flood Mapping in the Gulf Coast Region Frank Bell West Gulf River Forecast Center Southern Region NOAA’s National Weather Service November 18, 2008

NOAA NWS Advanced Hydrologic Prediction Services (AHPS) Flood Mapping Status Overview: • Review of NWS National and Southern Activities in FY 08. • Snapshot of NWS National and Southern Activities for FY 09. • Keys to Developing New AHPS Flood Mapping. 2 NOAA’s National Weather Service

NWS National Activities in FY 2008 Refinement of Process Model: q Task Flowchart and Personnel Responsibilities q Better Quality Control § H&H GIS / Graphics § AHPS Implementation Deliverables q Documentation § NWS Federal Guidelines with support from USGS. § Statement of Work Templates used in DRBC, SRBC, and Central Region. 3 NOAA’s National Weather Service

NWS Southern Region in FY 2008 Activities: q Hurricane Katrina Supplemental Site Libraries q 3 Lower Colorado River Authority sponsored Libraries online in Texas q AHPS Inundation Mapping Theme Team q Participation in Flood Mapping Forum 4 NOAA’s National Weather Service

NWS Southern Region in FY 2009 Activities: q Completion of Remaining Sites from Hurricane Katrina Supplemental q Complete 4 additional Lower Colorado River Authority sponsored Libraries below Austin, Texas q Pilot Project with San Antonio River Authority at Goliad, Texas q Develop Library Plans with International Boundary and Water Commission 5 NOAA’s National Weather Service

Other AHPS Flood Inundation Mapping Activities for FY 2009 q Internal Training on development of Map Libraries q Evaluation of Suitable Sites for Improved Scoping Activities q Central Region’s Upper Midwest Inundation mapping in Partnership with USGS, Indiana DHS, Indiana University Purdue University Indianapolis Polis Center. q Eastern Region’s AHPS Flood Inundation Mapping on the Delaware River in Partnership with Delaware River Basin Commission and USACE. q Eastern Region’s AHPS Flood Inundation Mapping in the Susquehanna Basin in Partnership with Susquehanna River Basin Commission and New York State DEP. q Western Region’s AHPS Flood Inundation Map Partnership Planning 6 NOAA’s National Weather Service

Keys to Building AHPS Flood Inundation Map Libraries Four (4) Phases PLANNING (1) NWSH, CSC, SR* NWS, CSC ENGINEERING & ANALYSIS (2) NWSH, CSC, SR*, NOAA Contractor IMPLEMENTATION (3) AHPS Contractor NWSH, CSC, SR*, NWSH, CSC, NOAA Contractor SR*, NOAA Contractor OPERATION & MAINT. (4) AHPS Contractor NWS & Partners 7 NOAA’s National Weather Service

Keys to Building AHPS Flood Inundation Map Libraries Lessons Learned: Hurricane Katrina Supplemental: • process takes 1 -2 years for 30 + libraries; • benefits of taking existing Hydraulic Models where LIDAR and Cross Section exists ~90% Cost Savings; • local support from RFCs, WFOs, and Partners. Lower Colorado River Authority: • Local H&H expertise; • HEC-RAS Unsteady Analysis • Quality Control; • File Management; • Learning Curve, 8 NOAA’s National Weather Service

Keys to Building AHPS Flood Inundation Map Libraries Partnerships: Hurricane Katrina Supplemental: • 90% Cost Savings when partnered with NFIP community - Detailed FEMA Flood Insurance Studies - Existing Lidar and Hydraulic Models • Local Hydrologic Knowledge of WFO’, RFCs, and Community Stakeholders • Seed Monies to demonstrate capabilities Lower Colorado River Authority: • • • Strong working relationship Current FIS hydraulic models Sufficient topographic data and resolution GIS capability is a big plus $$$$$ 9 NOAA’s National Weather Service

Keys to Building AHPS Flood Inundation Map Libraries RFC and WFO Roles: Hurricane Katrina Supplemental: • Assist in site selection • Solicit input/feedback from local partners/shareholders • Review libraries for completeness, accuracy Lower Colorado River Authority: • Act as liason between partner contractor, and headquarters • Identify roadblocks, oversights, problems • Keep the ball rolling 10 NOAA’s National Weather Service

NOAA National Weather Service Working together to Map the Risk of Flooding. 11 NOAA’s National Weather Service

Site Status AHPS Implementation for Flood Inundation Map Libraries FY 08 -FY 09 Quarter Region NWSLID River Location WFO RFC 1 Completed Target. Date FY 08 Q 3 SR BBST 2 Buffalo Bayou Houston TX HGX WGRFC 2 Completed FY 08 Q 3 SR PPTT 2 Buffalo Bayou Piney Point TX HGX WGRFC 3 Completed FY 08 Q 3 SR WFDT 2 Cypress Creek Westfield TX HGX WGRFC 4 Completed FY 08 Q 3 SR HMMT 2 West Fork San Jacinto Humble TX HGX WGRFC 5 Completed FY 08 Q 4 SR ATIT 2 Onion Creek Austin, TX (US 183 ) EWX WGRFC 6 Completed FY 08 Q 4 SR FWHT 2 Clear Fork Trinity River Ft Worth, TX FWD WGRFC 7 Completed FY 08 Q 4 SR DALT 2 Trinity River Dallas, TX FWD WGRFC 8 Completed FY 08 Q 4 SR FWOT 2 West Fork Trinity River Fort Worth, TX FWD WGRFC 9 Completed FY 08 Q 4 SR NCET 2 East Fork San Jacinto New Caney, TX HGX WGRFC 10 Completed FY 08 Q 4 SR SHLT 2 San Jacinto Riv Sheldon, TX HGX WGRFC 11 Completed FY 08 Q 4 SR SPNT 2 Spring Creek Spring, TX HGX WGRFC 12 Completed FY 08 Q 4 SR GETT 2 So. Fork San Gabriel River Georgetown, TX EWX WGRFC 13 Completed FY 08 Q 4 SR AEXL 1 Red River Alexandria, LA LCH LMRFC 14 Completed FY 08 Q 4 SR MLUL 1 Ouachita River Monroe, LA SHV LMRFC 15 Completed FY 08 Q 4 SR LPTL 1 Sabine River Logansport, LA SHV WGRFC 16 Completed FY 08 Q 4 SR SGET 2 Clear Creek Sanger, TX FWD WGRFC 17 Completed FY 08 Q 4 SR GROT 2 Paluxy River Glen Rose, TX FWD WGRFC 18 Completed FY 08 Q 4 SR BRTT 2 Colorado River Bastrop, TX EWX WGRFC 19 Completed FY 08 Q 4 SR ACRT 2 Colorado River Austin, TX EWX WGRFC 20 Completed FY 08 Q 4 SR SMIT 2 Colorado River Smithville, TX EWX WGRFC 21 3/31/2009 FY 09 Q 2 SR HGTT 2 White Oak Bayou Houston, TX HGX WGRFC 22 3/31/2009 FY 09 Q 2 SR CART 2 Elm Fork Trinity Carrollton, TX FWD WGRFC 23 3/31/2009 FY 09 Q 2 SR GBHT 2 Greens Bayou Houston TX (US 59) HGX WGRFC 24 3/31/2009 FY 09 Q 2 SR TODA 1 Black Warrior River Tuscaloosa, AL(Oliver L&D) BMX SERFC 25 3/31/2009 FY 09 Q 2 SR HOLL 1 Tickfaw River Holden, LA LIX LMRFC 26 3/31/2009 FY 09 Q 2 SR VLSL 1 Vermillion River Lafayette, LA (Surrey St. ) LCH LMRFC 27 3/31/2009 FY 09 Q 2 SR WEAT 2 Clear Fork Trinity River Weatherford, TX EWX WGRFC 28 12/30/2008 FY 09 Q 2 SR LGRT 2 Colorado River La. Grange, TX EWX WGRFC 29 12/30/2008 FY 09 Q 2 SR CBST 2 Colorado River Columbus, TX HGX WGRFC 30 12/30/2008 FY 09 Q 2 SR WHAT 2 Colorado River Wharton, TX EWX WGRFC 31 12/30/2008 FY 09 Q 2 SR BACT 2 Colorado River Bay City, TX HGX WGRFC 12 NOAA’s National Weather Service