Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood...
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Transcript of Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood...
![Page 1: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/1.jpg)
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Advanced Hydrologic Prediction Services
NWS Inundation Mapping Advanced Hydrologic Prediction Services
NWS Inundation Mapping
Eastern Region Flash Flood Workshop June 4, 2010
Presentation by Laurie Hogan NOAA/NWS Eastern Region Headquarters
Presentation by Laurie Hogan NOAA/NWS Eastern Region Headquarters
![Page 2: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/2.jpg)
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Q: Is flooding really that big of a deal? Flooding causes more damage in the United States than any other severe weather related event, an average of $5 billion a year. Flooding can occur in any of the 50 states or U.S. territories at anytime of the year.
http://www.weather.gov/floodsafety/floodsafe.shtml
Recent Record Floods from the Headlines
Nashville, TNCranston, West Warwick, RI
Floods are a big deal!!
![Page 3: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/3.jpg)
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• Features of NWS Inundation Maps
• Use of NWS Maps for Risk-Based Decisions
Advanced Hydrologic Prediction Services
NWS Inundation Mapping
![Page 4: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/4.jpg)
NWS Inundation Mapping Features
NWS Inundation Mapping Features
• Partnered effort, utilizing FEMA approved hydraulic models
• Visually oriented products
– Flood emergency operation/planning, available to public
• Easy product access linked to existing AHPS info
• Flood depth estimates
• KML and shape files (GIS formats) to integrated with user-specific data.
![Page 5: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/5.jpg)
Inundation Mapping on AHPSInundation Mapping on AHPS
![Page 6: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/6.jpg)
Inundation Mapping on AHPSInundation Mapping on AHPS
Water Depth Estimates
![Page 7: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/7.jpg)
Inundation Mapping on AHPSInundation Mapping on AHPSShape files imported into ESRI ArcMap software
Record flood stage and 3 ft above record flood stage
![Page 8: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/8.jpg)
Imported into Google Earth
![Page 9: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/9.jpg)
Thoughts borrowed from FEMA‘S RiskMAP
![Page 10: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/10.jpg)
Identify Risk
Things to identify:
• Inundation areas for continuum of flooding
• Depth of flood waters• Historic flood crests• What does a more
extreme flood look like for this city/community?
![Page 11: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/11.jpg)
Assess Risk
With the inundation areas, you can assess:
• What neighborhoods will be impacted? – How/when will they be
evacuated?
• Are critical facilities or evacuation routes in jeopardy?– Can preventative efforts be
successful?
![Page 12: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/12.jpg)
Communicate Risk
Pictures are powerful!
• Depiction of historic floods with a current context (existing roads, schools, etc)
• Are family flood preparedness plans needed?
![Page 13: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/13.jpg)
Mitigate Risk
Decisions/Investments:
• Protective measures and evacuation during floods
• Improvements to infrastructure, public and personal
• Zoning changes, new regulations
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Review of AHPS Inundation Maps
http://water.weather.gov/ahps/inundation.php
Review of AHPS Inundation Maps
http://water.weather.gov/ahps/inundation.php
• Continuum of flooding, action Continuum of flooding, action
stage to record levels stage to record levels
• Both NAVD88 and stage Both NAVD88 and stage
inundation selections inundation selections
• Web interface and GIS formats Web interface and GIS formats
• Available 24x7Available 24x7
![Page 15: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/15.jpg)
Nashville Flood
![Page 16: Page 1 Advanced Hydrologic Prediction Services NWS Inundation Mapping Eastern Region Flash Flood Workshop June 4, 2010 Presentation by Laurie Hogan NOAA/NWS.](https://reader035.fdocuments.us/reader035/viewer/2022062423/56649f475503460f94c69926/html5/thumbnails/16.jpg)
Rhode Island Flood
•10 inches < 48 hours • River crested 5 feet above previous record