Tidal flooding expected during Tuesday rush hour; roads likely to close

Flooding was widespread as the tide in Charleston Harbor peaked at 8.69 feet around 8:50 a.m. Tuesday October 27, 2015. Grace Beahm/Staff

There’s a recipe for major flooding during Tuesday morning rush hour brewing: developing northeast winds and high astronomical tides due to the approaching full moon, according to the National Weather Service in Charleston.

The tide at Charleston Harbor is forecast to reach 8-feet, which is typically when major flooding occurs along the coast. Flooding can occur as much as two hours on either side of high tide, which is at 6:01 a.m. Tuesday.

The risk for coastal flooding, possibly significant, will continue through much of the holiday week, according to the Weather Service. Downtown Charleston is expected to get the worst of it.

A coastal flood watch is in effect from 4 to 9 a.m. Tuesday. The Charleston Police Department is warning that many downtown roadways are likely to be impacted by flooding Tuesday morning. Drivers are urged to use caution.

Steve Rowley, a meteorologist with the Weather Service, said coastal residents can expect this to be a moderate flooding event with some standing salt water in the standard areas downtown. He predicted the tide may fall just short of the 8-feet forecast, but said drivers can still anticipate a number of road closures during rush hour.

There isn’t any rain in the forecast Tuesday and it will be a little warmer than Monday, with the high expected to be right around 60 degrees. The rest of the week is also expected to warm up and Rowley said there are several nice days ahead in the forecast.

Reach Melissa Boughton at 843-937-5594 or at Twitter.com/mboughtonPC.

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