Major Flood
10.5 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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This is an NWS forecast point (LID: MROS1). Live data may be limited. View on NWS AHPS →
FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
8.5 ft
Minor Flood
7 ft
Action Stage
6.5 ft
What Floods at Each Level
15 ft
Ocean overwash impacts the entire coast from Myrtle Beach to Garden City and water begins to enter structures on pilings.
12 ft
Ocean overwash affects areas with lower dune lines...mainly from Myrtle Beach southward and water enters any ground level beachfront structure.
10.5 ft
Ocean overwash in areas unprotected by dunes, including portions Garden City Beach. Water may enter ground level structures in Garden City Beach.
8.5 ft
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 ft
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 ft
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 ft
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 ft
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.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Sep 21, 1989 | 16 ft | — |
| Oct 7, 2016 | 13.6 ft | — |
| Sep 30, 2022 | 10.46 ft | — |
About This Gauge
NWS LID
MROS1
River
Atlantic Coast
County
Horry, SC
Coordinates
33.6550°N, 78.9183°W
Get Flood Alerts for Atlantic Coast
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Atlantic Coast at Myrtle Beach Springmaid Pier (IN MLLW)?
The Atlantic Coast at Myrtle Beach Springmaid Pier (IN MLLW) gauge is maintained by USGS and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Atlantic Coast at Myrtle Beach Springmaid Pier (IN MLLW)?
The NWS-defined flood stage for Atlantic Coast at Myrtle Beach Springmaid Pier (IN MLLW) is 7 feet. Action stage begins at 6.5 feet. Moderate flooding starts at 8.5 feet, and major flooding at 10.5 feet.
How do I get alerts when Atlantic Coast rises?
Download StormCast free on Google Play, go to River Gauges, and add Atlantic Coast at Myrtle Beach Springmaid Pier (IN MLLW) to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Atlantic Coast at Myrtle Beach Springmaid Pier (IN MLLW) gauge located?
The gauge is located in Horry County, South Carolina at coordinates 33.6550°N, 78.9183°W. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Resources
Source & Notes
Data provided by: National Ocean Service
- <head> <style type="text/css"> .style1 { background-color: #FFFF00; } </style> </head> Tide Forecasts are a total water level forecast referenced to mean lower low water.</strong>; Please refer to <a href="https://forecast.weather.gov/product.php?site=NWS&issuedby=ILM&product=CFW&format=CI&version=1&glossary=1"> <span class="style1">Coastal Flood Advisories and Warnings</span></a> for official water level forecasts during periods of coastal flooding. During tropical cyclones, please refer<a href="https://forecast.weather.gov/product.php?site=NWS&issuedby=ILM&product=TCV&format=CI&version=1&glossary=1"><span class="style1"> here</span></a> for additional storm surge information. <p> </p>