Mean High Water
A project documenting the impacts of sea level rise & flooding across the South Carolina Lowcountry.
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TABLE OF CONTENTS
USEFUL LINKS
Mean High Water
TABLE OF CONTENTS
USEFUL LINKS
This is a database maintained by the National Weather Service Charleston that tracks coastal flooding in Charleston and Savannah. It is referenced often throughout this site, particularly when discussing the number of coastal floods that have occurred in Charleston Harbor.
This is the homepage for the Charleston Tidal Benchmark, which serves as the main tide gauge referenced for tide levels in the Charleston region. The tidal datums (e.g. MLLW, MHW, MHHW) for Charleston are presented here. Lunar tide levels predictions can be found here, and the database of historic tide levels can be accessed here.
A foundational strategy for managing flood risks and embracing water’s place in the City’s future. The Water Plan is Charleston’s City-wide strategy for long-term water management and adaptation, and is intended as a tool to help align immediate and near-term actions with long-term safety, resilience, and value.
This map, available through the Preservation Society of Charleston, shows “the original high water lines, fortifications, burroughs, great fires, historic information, etc.” This is a great reference to understand where the old creeks used to existing on the peninsula, and thus, where there is a greater flood risk today.
The City’s one-stop shop for all things water.
The City of Charleston Flooding and Sea Level Rise Strategy update for 2023 builds upon the 2019 and 2015 Strategies, including important and updated climate data, as well as infrastructure and drainage project and policy updates.
These maps and tools have been developed by the City to help citizens monitor different types of flooding.
This is a City GIS product that is similar to and references the NWS Coastal Flood Event Database, but it has more interactive features and flooding statistics.
This is another City produced GIS web application that provide real time tide, rainfall, and street closure data. This is an incredibly useful tool if you are trying to navigate the City during a flood. I recomment bookmarking this on your phones homes screen so that you always have quick access to it.