Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of Spring 2024. Existing AHPS content and features will be preserved and expanded within NWPS. The NWS is now accepting feedback on NWPS. Please visit https://www.weather.gov/owp/operations for more information.

Experimental National Water Center Products: Flood Inundation Mapping services are now available for 10% of the U.S. population. Please visit https://www.weather.gov/owp/operations for more information. The National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook, and real-time geospatial services depicting River Forecast Center and National Water Model forecasts, continue to be accessible via the URL above, as described in the StoryMap here.

Weather Forecast Office Raleigh, NC

Southeast River Forecast Center

Hydrograph

River at a Glance

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Printable Image About this graph Tabular Data (UTC) Tabular Data (EST) Datum: NGVD29 Metadata

NOTE: Forecasts are not available for the Swift Creek near Apex. Only observed stages are available for this point.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Flood Categories (in feet) Major Flood Stage: 0 Moderate Flood Stage: 16 Flood Stage: 11 Action Stage: 9 Low Stage (in feet): -9999 Historic Crests (1) 11.45 ft on 10/09/2021 (P) (2) 11.17 ft on 11/13/2018 (3) 10.81 ft on 10/12/2018 (4) 8.56 ft on 09/17/2018 (P): Preliminary values subject to further review. Recent Crests (1) 11.45 ft on 10/09/2021 (P) (2) 11.17 ft on 11/13/2018 (3) 10.81 ft on 10/12/2018 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records Currently none available.

Zoom Level:16 Legend FEMA Layer Gauge Location Disclaimer Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

Flood Impacts & Photos

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16	Moderate Flood Stage. The Swift Creek bridge over Holly Springs Road is flooded.
11	Minor Flood Stage. Water reaches the lower bridge trusses on the Swift Creek bridge across Holly Springs Road.
9	Action Stage. Natural banks begin to overflow.

About This Location

Latitude: 35.718611° N, Longitude: 78.752500° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 11 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps Vertical Datum Elevation (gauge height = 0) Elevation (gauge height = flood stage) Elevation information source NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 292.22 303.22 Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other Not Available Not Available   Current/Historical Observations: U.S. Geological Survey (USGS) Data and Site Info for Apex

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Tar River Basin Multimedia - Includes Photos and Panoramics Tar River Inundation Mapping Cape Fear River Basin Mulitmedia Neuse River Basin Mulitmedia Roanoke River Basin Multimedia Pee Dee River Basin Multimedia Inundation Mapping Locations

Additional Resources Area Hydrographs NWS Precipitation and River Forecasting AHPS Iframes for Developers Mobile iNWS for emergency management Southeast River Forecast Center Snow Information Ensemble River Forecasts Hourly Precipitation

Collaborative Agencies The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here. NWS Information National Weather Service Raleigh Weather Forecast Office 1005 Capability Drive, Suite 300 Raleigh, NC 27606 (919) 326-1042 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:30 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities