King Tide is a commonly used term describing high tides that are higher than normal. They usually occur during a full or new moon or during specific seasons throughout the year. Charleston’s average high tide range is about 5.5 ft., but during a King Tide event, it can reach 7 ft. or higher.
King Tides can cause flooding in low-lying areas resulting in road closures on Seabrook Island as well as the Johns Island and Charleston areas. This is particularly true when a king tide coincides with significant rain and/or wind.
A low-pressure system is currently being tracked off the Southeast Coast, which could track onshore early next week. Rain is expected through the weekend and into early next week with rainfall totals between two to three inches. There is a possibility of minor to moderate coastal flooding during high tides today and Saturday, and high rip current risk today through the weekend. The threat for coastal flooding will increase next week with the approach of the full moon and perigee.
The 2024 predicted tides are:
- September 16 – 22
- October 16 – 21
- November 14 – 18
Remember to clear debris blocking the drains near your home before predicted King Tides and if your home is prone to flooding, you might want to prepare your ground level for flooding.
SCDOT warns: Please use caution in areas that are impacted by flooding. It takes just 12 inches of water to carry away most cars and just 2 feet of rushing water can carry away SUVs and trucks. Never drive around barricades or on streets where you can’t see the road. Manhole covers may pop up due to the water pressure under the road. Turn around, don’t drown.
The South Carolina Department of Health and Environmental Control (DHEC) is leading the South Carolina King Tides Initiative to document the effect that extreme tide events have on our state’s beaches, coastal waterways, private property, and public infrastructure. For more information on King Tides and the Initiative, click here.
Please note that flooding may also occur if there is a normal high tide along with a large amount of rain and/or wind.
–Tidelines Editors