Ashley River near North Charleston, SC

River level and flood forecast · Charleston County

Normal0.6 ftas of Mon 4:30 PM

The last 7 days and the forecast

-20246810TueWedThuFriSatSunMonNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.

What floods at each level

From the National Weather Service, highest first.

  • 10.42 ftRecord tide level reached in association with Tropical Storm Irma on September 11th, 2017.

Highest crests on record

  1. 10.42 ft — September 11, 2017
  2. 9.992 ft — October 8, 2016
  3. 9.88 ft — December 17, 2023
  4. 9.69 ft — August 30, 2023
  5. 9.022 ft — November 24, 2018

Recent crests: 8.82 ft (October 10, 2025) · 9.88 ft (December 17, 2023) · 9.69 ft (August 30, 2023) · 9.022 ft (November 24, 2018) · 10.42 ft (September 11, 2017)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (ASPS1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.