Catch the King Results
Catch the King (CTK) is an annual king tide mapping event that recruits volunteers to collect flooding data during the Perigean king tides—the highest tides of the year (view our 2025 flyer here!). This record-holding, crowdsourced flood data collection program has been engaging with volunteers since 2017. View results from over the years below!
Catch the King Results
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Catch the King 2025 Results
Thanks to the efforts of 167 volunteers, Catch the King 2024 was an incredible success! Community flood mappers from across coastal Virginia collected over 27,000 data points, delineating the impacts of king tide flooding and a nor’easter from October 6th-12th.
Read more at our blog post here and check back later for more details!
Catch the King Over The Years
This composite map from VIMS showcases all CTK data since 2017.
187 community flood mappers from across coastal Virginia collected over 22,000 data points delineating the impacts of king tide flooding from October 17th-20th. Check out this composite data map from VIMS showcasing all of our data since 2017 or click the map below to explore 2024’s results.
Check out the recording of our volunteer celebration and arts contest ceremony, held at the Brock Environmental Center on February 27th, 2025.
2024
2023
We held a Catch the King 2023 Appreciation Event on February 8th, 2024 to celebrate the wonderful efforts of our mappers and tide captains. Researchers from VIMS and ODU joined us to discuss how the mapping data is used, and how the Catch the King program is being expanded to further serve the community (see ODU’s Blue Line Project and Measure the Muck). View the recording and presenter materials below!
Catch the King 2023 Appreciation Event Recording - February 8th, 2024
Work in progress! Come back later for more.
2022
Work in progress! Come back later for more.
2021
Work in progress! Come back later for more.
2020
Work in progress! Come back later for more.
2019
Work in progress! Come back later for more.
2018
Work in progress! Come back later for more.
2017
Work in progress! Come back later for more.
Catch the King data is available to view via the Sea Level Rise phone app and the SeaRisingSolutions web portal for Tide Mappers who have participated in the mapping event. The general public does not have access to download CTK data sheets.
If you are interested in using CTK data or having a spreadsheet copy of the data, please reach out to our team.
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Catch the King Data Uses
Local Catch the King data is primarily shared with Dr. Derek Loftis, a scientist at the Virginia Institute of Marine Science (VIMS), to validate and ground-truth VIMS flood prediction models. Read more about his work here!
Other projects and partners have used Catch the King data in various ways, including:
William & Mary GIS students completed a priority analysis to identify neighborhoods in Norfolk that have high flood risk, high social vulnerability, and a lack of CTK data. These results help Wetlands Watch prioritize flood data collection in areas that need it most!
Old Dominion University’s “Measure the Muck” program has coordinated with CTK data collection since its inception. MTM project leads use CTK data to prioritize water quality monitoring sites to better understand how flooding causes increased nutrient pollution in the Chesapeake Bay.
Christopher Newport University students used CTK data to support a research poster in 2024 for “Fear to Hope” ecosystem research at Ragged Island.
If you’re interested in conducting research using Catch the King data, please reach out to our staff.
William and Mary student priority analysis using CTK data, flood risk, and social vulnerability factors (slide screenshot).
Christopher Newport University student poster on king tides at Ragged Island, VA.
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