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.

DID YOU KNOW... Please try our new TEST hydrograph page link at: https://preview.water.noaa.gov/gauges/abcde - Just replace “abcde” with your local hydrograph five character ID found in the lower left corner of the hydrograph.  In late March of 2024, the base URL path will become water.noaa.gov.  Feedback can be provided HERE

Weather Forecast Office Wilmington, NC

Southeast River Forecast Center

Hydrograph

River at a Glance

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NOTE: Tide Forecasts are a total water level forecast referenced to mean lower low water.; Please refer to Coastal Flood Advisories and Warnings for official water level forecasts during periods of coastal flooding. During tropical cyclones, please refer here for additional storm surge information.   NOTE: Forecasts for the Atlantic Coast at Myrtle Beach Springmaid Pier (IN MLLW) are issued routinely year-round.

Default Hydrograph Scale to Flood Categories   Return to Area Map

Flood Categories (in feet) Major Flood Stage: 10.5 Moderate Flood Stage: 8.5 Flood Stage: 7 Action Stage: 6.5 Low Stage (in feet): -2 Historic Crests (1) 16.00 ft on 09/22/1989 (2) 13.60 ft on 10/08/2016 (3) 10.46 ft on 09/30/2022 (4) 9.83 ft on 08/04/2020 (5) 9.25 ft on 01/01/1987 Show More Historic Crests (P): Preliminary values subject to further review. Recent Crests (1) 6.59 ft on 05/23/2023 (2) 6.58 ft on 05/20/2023 (3) 7.42 ft on 05/18/2023 (4) 6.71 ft on 05/11/2023 (5) 6.57 ft on 05/07/2023 Show More Recent Crests (P): Preliminary values subject to further review. Low Water Records (1) -3.89 ft on 03/14/1993 (2) -3.75 ft on 04/07/1989 (3) -3.43 ft on 09/27/1958 (4) -3.34 ft on 01/09/1978 (5) -3.10 ft on 03/18/1980 Show More Low Water Records

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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15	Ocean overwash impacts the entire coast from Myrtle Beach to Garden City and water begins to enter structures on pilings.
12	Ocean overwash affects areas with lower dune lines...mainly from Myrtle Beach southward and water enters any ground level beachfront structure.
10.5	Ocean overwash in areas unprotected by dunes, including portions Garden City Beach. Water may enter ground level structures in Garden City Beach.
8.5	Street flooding continues to deepen and expand on roadways along sounds, swashes, and tidal creeks. Some roads will be impassable. Areas impacted include Cherry Grove between Sea Mountain Highway and Hog Inlet, Shore Drive along Singleton Swash, areas between 48th Avenue South and 46th Avenue South near Whitepoint Swash, North and South Dogwood Drive and adjacent roads in Garden City and Murrells Inlet, and Cypress and Atlantic Avenues in Garden City. Basin Drive and Dolphin Street in Murrells Inlet flood.
8	Minor street flooding continues to deepen and expand on roadways near sounds, swashes, and tidal creeks. Some roads may be impassable. This includes areas in Cherry Grove between Sea Mountain Highway and Hog Inlet, Shore Drive along Singleton Swash, areas between 48th Avenue South and 46th Avenue South near Whitepoint Swash, North and South Dogwood Drive and adjacent roads in Garden City and Murrells Inlet, and Cypress and Atlantic Avenues in Garden City. Basin Drive in Murrells Inlet will flood.
7.5	Minor street flooding deepens and expands on roadways near sounds, swashes, and tidal creeks. This includes areas in Cherry Grove between Sea Mountain Highway and Hog Inlet, Shore Drive along Singleton Swash, areas between 48th Avenue South and 46th Avenue South near Whitepoint Swash, North and South Dogwood Drive and adjacent roads in Garden City and Murrells Inlet, and Cypress and Atlantic Avenues in Garden City. Basin Drive in Murrells Inlet may begin to flood. Heavy rain near high tide worsens flooding.
7	Minor street flooding begins on low-lying roadways along sounds, swashes, and tidal creeks. This includes such areas in Cherry Grove between Sea Mountain Highway and Hog Inlet, Shore Drive along Singleton Swash, multiple locations on North and South Dogwood Drive in Garden City and Murrells Inlet, and both Cypress and Atlantic Avenues in Garden City. Heavy rain near the time of high tide may worsen this flooding or result in flooding of other areas as storm drains back up.
6.5	Minor street flooding may begin on North Dogwood Drive in Garden City as water backs up into the storm drains. Heavy rain around the time of high tide would make this flooding worse.

About This Location

Latitude: 33.655000° N, Longitude: 78.918333° W, Horizontal Datum: NAD83/WGS84 River Stage Reference Frame Gauge Height Flood Stage Uses NWS stage 0 ft 7 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 -3.16 4.34 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks Other NULL NULL

Resources

Hydrologic Resources Text Products Past Precipitation Forecast Precipitation River Forecast Centers River Stage Summary Cape Fear River Basin Multimedia - Includes Photos and Panoramics 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 Wilmington Weather Forecast Office 2015 Gardner Drive Wilmington, NC 28405 (910) 762-4289 Ask Questions/Webmaster Page last modified: 2-Nov-2020 7:30 PM Disclaimer Credits Glossary Privacy Policy About Us Career Opportunities