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Weather Forecast Office Wilmington, NC
Southeast River Forecast Center
Hydrograph
River at a Glance
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
Datum: Not Available
Metadata
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) 9.83 ft on 08/04/2020
(4) 9.25 ft on 01/01/1987
(5) 8.56 ft on 11/24/2018
Show More Historic Crests
(P)
: Preliminary values subject to further review.
Recent Crests
(1) 6.54 ft on 07/27/2021
(2) 6.84 ft on 07/26/2021
(3) 7.01 ft on 07/25/2021
(4) 7.58 ft on 07/23/2021
(5) 6.80 ft on 07/22/2021
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
If you notice any errors in the below information, please contact our
Webmaster
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
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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,
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NWS Information
National Weather Service
Wilmington Weather Forecast Office
2015 Gardner Drive
Wilmington, NC 28405
(910) 762-4289
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Page last modified: 2-Nov-2020 7:30 PM
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