National Weather Service United States Department of Commerce

Overview  |  Coastal Flooding  |  Torrential Rainfall  |  Coastal Hazards  |  Report Significant Weather



A powerful low pressure system over the southeast United States will slowly move northeast across the area through Monday. Accompanying this storm will be the continued risk for coastal flooding and flash flooding.


Coastal Flooding Due to Very High Tides


Unusually high tides will continue into Monday.


Possible Tide Levels



Below are the latest tide level projections from the GFS Extratropical Surge model.
Note: The dashed black line shows the model forecast water level. Keep in mind that this is raw model data that changes frequently and is for guidance purposes only. For more information about these charts, read the tutorial.


Extratropical surge guidance for Charleston, SC.


GFS extratropical surge guidance for Savannah, GA


Torrential Rainfall

Heavy rainfall possible through Monday morning, mainly over northern portions of Dorchester, Berkeley, and Charleston counties. The heaviest rain appears to have ended in locations farther south, though a few heavy rain showers are possible through Sunday night.

Storm Total Rainfall Forecast


Coastal Hazards


Additional hazards will include:

  • High Risk for Rip Currents at the Charleston County beaches

  • Potential for Beach Erosion


Report Significant Weather


We rely on your weather reports to produce the best forecasts and warnings. Please send us reports of coastal flooding, flash flooding, intense rainfall amounts, beach erosion, rip currents, high surf, or other significant weather phenomena.


Twitter: @NWSCharlestonSC


Phone: 1-888-383-2024