Major coastal flooding impacted portions of the southeast South Carolina coast as astronomical high tides were elevated due to the perigee and a new moon cycle. Tides were driven higher due to the presence of favorable northeast winds as the region was situated between high pressure to the north and Tropical Cyclone Sally which made landfall near the Alabama and Florida state line.

Coastal Flood in CHARLESTON, SOUTH CAROLINA
From 15-SEP-20 19:25:00 to 15-SEP-20 20:55:00 (EST-5)
Crop damage: 0.00K
Reported by: Public

Members of the public reported coastal flooding around Mount Pleasant. Impacted areas included Shem Creek where water entered the dock level of several restaurants and parking lots. Patrons had to be relocated. Also, Church Street at Mill Street was closed due to saltwater flooding.

Coastal Flood in CHARLESTON, SOUTH CAROLINA
From 15-SEP-20 19:38:00 to 15-SEP-20 21:08:00 (EST-5)
Crop damage: 0.00K
Reported by: Public

Coastal flooding was reported around James Island including Central Park Road at Flemming Road. Also, a parking lot at the James Island Yacht Club was flooded and water was surrounding the building but had not entered it.

Coastal Flood in BEAUFORT, SOUTH CAROLINA
From 15-SEP-20 18:57:00 to 15-SEP-20 20:27:00 (EST-5)
Crop damage: 0.00K
Reported by: Public

Portions of a restaurant on Fripp Island were flooded with water entering into one part of the building. The parking lot was flooded and cars have been relocated. Flood waters are coming from Old House Creek.

Coastal Flood in CHARLESTON, SOUTH CAROLINA
From 16-SEP-20 18:49:00 to 16-SEP-20 20:04:00 (EST-5)
Crop damage: 0.00K
Reported by: Law Enforcement

Charleston Police Department reported several road closures in Downtown Charleston including Washington Street from Laurens Street to Hasell Street, Lockwood Drive and Broad Street, and Hagood Avenue from Fishburne to Line Street.

Coastal Flood in CHARLESTON, SOUTH CAROLINA
From 16-SEP-20 19:57:00 to 16-SEP-20 20:57:00 (EST-5)
Crop damage: 0.00K
Reported by: Law Enforcement

Charleston Police Department reported that the Highway 61 on ramp from Highway 17 was closed due to saltwater flooding.

Coastal Flood in CHARLESTON, SOUTH CAROLINA
From 16-SEP-20 18:54:00 to 16-SEP-20 18:54:00 (EST-5)
Crop damage: 0.00K
Reported by: Official NWS Observations

The National Ocean Service tide gauge located in Charleston Harbor measured a peak tide value of 7.91 feet above Mean Lower Low Water (MLLW), or 2.15 feet above Mean Higher High Water (MHHW). Moderate flooding typically begins along the southeast South Carolina coast when tide levels at the Charleston Harbor tide gauge reach or exceed 7.5 feet above MLLW, or 1.74 feet above MHHW. Major flooding typically begins when tide levels reach or exceed 8.0 feet above MLLW, or 2.24 feet MHHW.

Coastal Flood in CHARLESTON, SOUTH CAROLINA
From 15-SEP-20 19:49:00 to 15-SEP-20 20:49:00 (EST-5)
Crop damage: 0.00K
Reported by: Law Enforcement

Coastal flooding was reported around Folly Beach including E Cooper Street and 9th Street, E Erie Avenue and 8th Street, and 13th Street.

Coastal Flood in CHARLESTON, SOUTH CAROLINA
From 15-SEP-20 18:39:00 to 15-SEP-20 20:09:00 (EST-5)
Crop damage: 0.00K
Reported by: Law Enforcement

Charleston Police Department reported several road closures around Downtown Charleston including Lockwood Drive between Broad Street and Wentworth Street, Hagood Avenue between Allway Street and Fishburne Street, and Washington Street between Laurens Street and Hasell Street.

Coastal Flood in CHARLESTON, SOUTH CAROLINA
From 15-SEP-20 19:15:00 to 15-SEP-20 20:45:00 (EST-5)
Crop damage: 0.00K
Reported by: Law Enforcement

Coastal flooding reported at the Isle of Palms including 41st Avenue and Waterway Boulevard, and Forrest Trail and Waterway Boulevard.

Coastal Flood in SOUTHERN COLLETON, SOUTH CAROLINA
From 15-SEP-20 18:51:00 to 15-SEP-20 19:51:00 (EST-5)
Crop damage: 0.00K
Reported by: Public

Several buildings along Docksite Road are flooded with several inches of water in the buildings. Flood waters are coming from Big Bay Creek due to coastal flooding.

Coastal Flood in CHARLESTON, SOUTH CAROLINA
From 16-SEP-20 19:28:00 to 16-SEP-20 20:28:00 (EST-5)
Crop damage: 0.00K
Reported by: Social Media

Saltwater was entering the dock level of a restaurant along Shem Creek.

Coastal Flood in CHARLESTON, SOUTH CAROLINA
From 15-SEP-20 18:30:00 to 15-SEP-20 18:30:00 (EST-5)
Crop damage: 0.00K
Reported by: Official NWS Observations

The National Ocean Service tide gauge located in Charleston Harbor measured a peak tide value of 8.09 feet above Mean Lower Low Water (MLLW), or 2.33 feet above Mean Higher High Water (MHHW). Major flooding typically begins along the southeast South Carolina coast when tide levels at the Charleston Harbor tide gauge reach or exceed 8.0 feet above MLLW, or 2.24 feet above MHHW.