HYDROLOGY OUTREACH AND URBAN SPRAWL by fuw70346

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									HYDROLOGY OUTREACH
       AND
   URBAN SPRAWL
  National Hydrologic Program Managers
                Conference
Southern Region - Regional Breakout Session
                 July 12, 2007
                Kansas City, MO

                Patricia Brown
          Senior Service Hydrologist
      NWS WFO New Orleans/Baton Rouge LA
                     NWFO LIX
              HYDROLOGIC SERVICES AREA
                       (HSA)
• HSA does not include:
    Red River
    Homochitto River
•   Includes Atchafalaya River
    in the following Parishes:
          Avoyelles
          St. Landry
          St. Martin
          Iberia
          St. Mary
• HSA extends into Lake
    Charles, LA County
    Warning Area (CWA)

• New Orleans/Baton Rouge
    CWA includes:
       22 Louisiana Parishes
       8 Mississippi Counties
         Location, Location, Location!
                                                       Elevation
                           Elevation at                at Slidell
                           Carriere, MS                 9 Feet
                           98 Feet


 Elevation
 at Port
 Vincent
  7 Feet


                       Elevation
                       at Baton
                       Rouge
Elevation at Hammond    46 Feet
44 Feet                            Fort Massachusetts, MS 0 Feet
 Location, Location, Location!
Coastlines >> Hurricanes And Tropical
               Storms
                    • Adverse Outcomes
                      –   Damaging High Winds
                      –   Storm Surge Flooding
                      –   Heavy Rainfall
                      –   Flash Flooding/
                          Mainstream Flooding

                    • Complicating Factors
                      for Hydrology
                      – Uncertainties surrounding
                        Hurricane’s Future Course
                        versus Hurricane’s Intensity
         Location, Location, Location!
                      Just the Facts, Please.

• Most Louisianans live in the southern portion of the state, with the two largest
   Combined Statistical Areas in our HSA/County Warning Area (CWA).*
    – New Orleans/Metairie/Bogalusa CSA         1,069,428 residents
    – Baton Rouge/Pierre Part CSA                 789,986 residents

• Mississippi’s second largest Combined Statistical Area is in our HSA/CWA.*
    – Gulfport/Biloxi/Pascagoula CSA                 380,309 residents

• The lack of slope in the terrain, urbanization, and the many miles of coastlines
   place many residents and visitors in a precarious situation, with regard to
   flooding. Building often occurs in flood-prone areas.

• The virtual shoreline for the region is actually along Interstate 12 in Louisiana and
   U. S. Highway 90 in Mississippi.

• Significant expenditures to mitigate potential flooding and provide warnings.
         Diversion channels            Flood gates          New and Replaced Gages
         Levees                        Farm Dams            Generators on DCPS (147)

    *CSA Populations estimated by the DOC/United States Census Bureau, as of 07/01/2006.
                                    Sprawl, Ya’ll!
                              Issues for the Region
• East Baton Rouge Parish is home to Louisiana's state capital, Baton Rouge.
     –   As of 2000, the population was 412,852 in the parish.
     –   East Baton Rouge Parish saw an influx of 200,000 to 250,000 new residents after Hurricane Katrina,
         which temporarily made East Baton Rouge Parish the largest in the state.

• St. Tammany Parish and all of the Northshore communities in Washington and Tangipahoa
   Parishes have grown as a result of Hurricane Katrina.
     –   As of 2000, the population of St. Tammany Parish was 191,268.
     –   In 2004, the population was estimated to have grown to 212,000.
     –   After Hurricane Katrina in 2005, the population was estimated at 264,000.
           • Most new residents are thought to have come from St. Bernard Parish.
           • If correct, these figures make St. Tammany Parish the fastest-growing parish in the state,
              overtaking Livingston Parish and Ascension Parish.

• Picayune, Mississippi in Pearl River County had major increases in population as a result of
   Hurricane Katrina.
     –   As of 2000, there were 10,535 people in Picayune.
     –   The population according to the 2006 census estimate was 20,000.

• Currently, New Orleans, located in Orleans and Jefferson Parishes, has about 255,000
   residents, or 56% of its pre-Katrina population.
     –   In 2000, New Orleans had 484,674 residents.
     –   Mayor Nagin believes there are about 300,000 residents in the city.
     –   Since July 2006, 32,000 have moved to the city.
                              Sprawl, Ya’ll!
                         Issues for the Region
• Overtaxed infrastructures in many areas – money for flood-related projects
• Shifts in the Emergency Management community – from FEMA to MEMA to LAOEP

• Crowding and traffic issues
• Community and personal services delays
• Decreased housing availability
• Rebuilding in flood zones

• Uninformed Visitors:
    –   Many not familiar with our weather hazards
    –   Many not familiar with precautions and safety measures
         • Hurricanes and tropical storms
         • Heavy rains/flooding
         • Severe Weather
    –   Many not familiar with evacuation procedures and routes

• Repopulation of the region includes:
    –   New residents from other parts of the country and world
    –   Itinerant workers
    –   Workers with little fluency in English
    –   Transitional residents on mission-related assignments.
AHPS
            Flood Safety
Turn Around Don’t Drown (TADD)




  http://tadd.weather.gov




                                           NSC Brochure
  The Hidden Danger Video   NWS Brochure
National Flood Safety Awareness Week
                     March 19-23, 2007
 Daily Themes
 -TADD
 -Tropical Cyclone Inland Flooding
 -AHPS
 -Flood Safety/Mitigation
 -Flood Insurance



                    Press Conference Partners
                    -Federal Alliance for Safe Homes (FLASH)
                    -National Safety Council
                    -The Weather Channel
                    -National Hydrologic Warning Council
         Summary: Addressing our Concerns
• Work with EMAs in Louisiana and Mississippi
    –   Bi-annual meetings with EMAs in LA and MS, separately.
    –   Occasional visits to Parish/County EMAs and officials.
    –   Courtesy call to EMAs when weather becomes threatening
    –   Enhanced Hazardous Weather Outlooks that tag potential threats

• Participation with Parish/County planners
    –   St. Tammany Parish River Gage Project
    –   City of Gretna, LA

• Presentations to civic, professional, and governmental organizations
    –   Amite/Comite River Basin Authority
    –   Atchafalaya River Basin Authority

• Stress the use of Hydrology tools
    –   AHPS for planning and coordination
    –   NOAA Weather Radio
    –   National Flood Safety Awareness Week

• Working with partners
    –   Expect to work in communities to become Flood Ready
    –   Partnerships with publishers, companies, and organizations
          • Walmart brochures
          • Independent publishers
          • Southeastern Louisiana University at Hammond, LA
                 Wrap – Up
• Questions and Comments

• NWS Resource Web Sites
  – www.srh.noaa.gov – Southern Region Headquarters
  – www.srh.noaa.gov/lix - WFO New Orleans/Baton
    Rouge LA at Slidell, LA
  – www.srh.noaa.gov/lmrfc - Lower MS River Forecast
    Center at Slidell, LA
  – www.nhc.noaa.gov – National Hurricane Center

								
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