Highest listed crest 5.14 ft October 30, 2021
Flood stage 3.2 ft Major flooding from 4.2 ft
Crests at major 15 2nd of 108 gauges in Maryland
Most recent flood crest September 27, 2026 4.25 ft, major flooding Listed crests at the Chesapeake Bay at Bishops Head (IN MLLW), 2005 to 2026 3 3.5 4 4.5 5 5.5 ft Flood stage 3.2 ft Major 4.2 ft Mar 29, 2005: 3.42 ft, minor flooding Apr 4, 2005: 3.82 ft, moderate flooding May 8, 2005: 3.33 ft, minor flooding May 21, 2005: 3.32 ft, minor flooding May 27, 2005: 3.61 ft, minor flooding Oct 8, 2005: 3.35 ft, minor flooding Oct 25, 2005: 3.56 ft, minor flooding Sep 1, 2006: 4.09 ft, moderate flooding Oct 7, 2006: 4.00 ft, moderate flooding May 12, 2008: 4.23 ft, major flooding Nov 13, 2009: 3.98 ft, moderate flooding Mar 14, 2010: 4.11 ft, moderate flooding Apr 17, 2011: 4.28 ft, major flooding Aug 28, 2011: 4.09 ft, moderate flooding Oct 13, 2011: 3.99 ft, moderate flooding Oct 20, 2011: 3.81 ft, moderate flooding Oct 29, 2011: 3.65 ft, minor flooding Jun 6, 2012: 4.06 ft, moderate flooding Oct 30, 2012: 4.29 ft, major flooding Nov 9, 2012: 3.53 ft, minor flooding Dec 21, 2012: 4.11 ft, moderate flooding May 1, 2014: 4.03 ft, moderate flooding May 16, 2014: 3.37 ft, minor flooding Oct 4, 2014: 4.21 ft, major flooding Feb 12, 2015: 3.49 ft, minor flooding Apr 21, 2015: 3.32 ft, minor flooding Jun 21, 2015: 3.38 ft, minor flooding Jun 27, 2015: 3.43 ft, minor flooding Aug 10, 2015: 3.32 ft, minor flooding Sep 5, 2015: 3.30 ft, minor flooding Sep 27, 2015: 3.65 ft, minor flooding Oct 4, 2015: 3.93 ft, moderate flooding Oct 28, 2015: 3.52 ft, minor flooding Nov 12, 2015: 3.38 ft, minor flooding Dec 29, 2015: 3.26 ft, minor flooding Jan 10, 2016: 3.82 ft, moderate flooding Jan 25, 2016: 3.51 ft, minor flooding Feb 9, 2016: 4.26 ft, major flooding Feb 25, 2016: 3.95 ft, moderate flooding May 6, 2016: 3.84 ft, moderate flooding Aug 21, 2016: 3.26 ft, minor flooding Sep 4, 2016: 3.53 ft, minor flooding Oct 1, 2016: 3.92 ft, moderate flooding Jan 23, 2017: 3.45 ft, minor flooding May 5, 2017: 3.58 ft, minor flooding May 13, 2017: 3.42 ft, minor flooding May 26, 2017: 3.90 ft, moderate flooding Jun 8, 2017: 3.50 ft, minor flooding Jul 24, 2017: 3.47 ft, minor flooding Jul 31, 2017: 3.44 ft, minor flooding Aug 30, 2017: 3.51 ft, minor flooding Sep 20, 2017: 3.90 ft, moderate flooding Nov 9, 2017: 3.71 ft, moderate flooding Mar 7, 2018: 4.49 ft, major flooding Apr 16, 2018: 3.93 ft, moderate flooding May 29, 2018: 3.37 ft, minor flooding Jun 5, 2018: 3.41 ft, minor flooding Jun 11, 2018: 3.41 ft, minor flooding Jun 22, 2018: 3.40 ft, minor flooding Jun 28, 2018: 3.61 ft, minor flooding Jul 21, 2018: 3.67 ft, minor flooding Aug 21, 2018: 3.57 ft, minor flooding Sep 1, 2018: 3.28 ft, minor flooding Sep 11, 2018: 4.29 ft, major flooding Sep 20, 2018: 3.87 ft, moderate flooding Sep 25, 2018: 3.87 ft, moderate flooding Oct 6, 2018: 3.55 ft, minor flooding Oct 13, 2018: 3.54 ft, minor flooding Oct 27, 2018: 3.65 ft, minor flooding Nov 2, 2018: 3.32 ft, minor flooding Nov 26, 2018: 4.01 ft, moderate flooding Dec 2, 2018: 3.58 ft, minor flooding Dec 21, 2018: 3.65 ft, minor flooding Jan 5, 2019: 3.40 ft, minor flooding Jan 20, 2019: 3.80 ft, moderate flooding Feb 18, 2019: 3.24 ft, minor flooding Apr 20, 2019: 3.54 ft, minor flooding May 7, 2019: 3.52 ft, minor flooding May 14, 2019: 3.59 ft, minor flooding May 20, 2019: 3.26 ft, minor flooding Jun 3, 2019: 3.37 ft, minor flooding Jun 13, 2019: 3.41 ft, minor flooding Jul 11, 2019: 3.27 ft, minor flooding Aug 7, 2019: 3.51 ft, minor flooding Aug 26, 2019: 3.82 ft, moderate flooding Sep 2, 2019: 3.32 ft, minor flooding Sep 7, 2019: 4.02 ft, moderate flooding Sep 14, 2019: 3.66 ft, minor flooding Sep 19, 2019: 3.65 ft, minor flooding Oct 1, 2019: 3.54 ft, minor flooding Oct 6, 2019: 3.33 ft, minor flooding Oct 12, 2019: 4.66 ft, major flooding Oct 16, 2019: 4.24 ft, major flooding Oct 22, 2019: 3.81 ft, moderate flooding Oct 27, 2019: 3.59 ft, minor flooding Nov 19, 2019: 3.82 ft, moderate flooding Dec 1, 2019: 3.52 ft, minor flooding Dec 31, 2019: 3.50 ft, minor flooding Feb 7, 2020: 3.90 ft, moderate flooding Mar 27, 2020: 3.50 ft, minor flooding Apr 1, 2020: 3.34 ft, minor flooding Apr 5, 2020: 3.86 ft, moderate flooding Apr 9, 2020: 3.32 ft, minor flooding Apr 30, 2020: 3.75 ft, moderate flooding Jul 5, 2020: 3.31 ft, minor flooding Aug 4, 2020: 3.80 ft, moderate flooding Sep 12, 2020: 3.34 ft, minor flooding Sep 22, 2020: 3.53 ft, minor flooding Sep 30, 2020: 3.39 ft, minor flooding Oct 12, 2020: 3.58 ft, minor flooding Nov 1, 2020: 3.45 ft, minor flooding Dec 25, 2020: 3.57 ft, minor flooding Apr 13, 2021: 3.36 ft, minor flooding May 30, 2021: 3.41 ft, minor flooding Jun 12, 2021: 3.40 ft, minor flooding Jul 9, 2021: 3.47 ft, minor flooding Sep 1, 2021: 3.91 ft, moderate flooding Sep 23, 2021: 3.70 ft, moderate flooding Oct 30, 2021: 5.14 ft, major flooding Nov 9, 2021: 3.28 ft, minor flooding Jan 2, 2022: 3.38 ft, minor flooding Jan 17, 2022: 4.02 ft, moderate flooding May 10, 2022: 3.74 ft, moderate flooding Jun 17, 2022: 3.47 ft, minor flooding Aug 17, 2022: 3.31 ft, minor flooding Sep 9, 2022: 3.85 ft, moderate flooding Oct 1, 2022: 3.91 ft, moderate flooding Dec 11, 2022: 3.37 ft, minor flooding Dec 16, 2022: 3.84 ft, moderate flooding Dec 23, 2022: 4.41 ft, major flooding Jan 17, 2023: 3.27 ft, minor flooding Mar 1, 2023: 3.29 ft, minor flooding Mar 13, 2023: 3.80 ft, moderate flooding May 1, 2023: 3.65 ft, minor flooding Jun 5, 2023: 3.89 ft, moderate flooding Jun 22, 2023: 3.36 ft, minor flooding Jul 9, 2023: 3.35 ft, minor flooding Sep 1, 2023: 3.42 ft, minor flooding Sep 23, 2023: 4.13 ft, moderate flooding Sep 28, 2023: 3.72 ft, moderate flooding Oct 2, 2023: 3.35 ft, minor flooding Oct 14, 2023: 3.45 ft, minor flooding Nov 22, 2023: 3.72 ft, moderate flooding Dec 18, 2023: 4.09 ft, moderate flooding Jan 9, 2024: 4.43 ft, major flooding Jan 13, 2024: 3.88 ft, moderate flooding Jan 31, 2024: 3.43 ft, minor flooding Feb 7, 2024: 3.54 ft, minor flooding Mar 10, 2024: 4.15 ft, moderate flooding Mar 17, 2024: 3.27 ft, minor flooding Mar 27, 2024: 4.02 ft, moderate flooding Apr 4, 2024: 3.71 ft, moderate flooding Apr 12, 2024: 3.98 ft, moderate flooding Apr 20, 2024: 3.55 ft, minor flooding Apr 26, 2024: 3.27 ft, minor flooding May 6, 2024: 3.50 ft, minor flooding May 11, 2024: 3.77 ft, moderate flooding May 21, 2024: 3.43 ft, minor flooding May 28, 2024: 3.37 ft, minor flooding Jun 6, 2024: 3.39 ft, minor flooding Aug 9, 2024: 3.79 ft, moderate flooding Aug 18, 2024: 3.52 ft, minor flooding Sep 22, 2024: 4.41 ft, major flooding Sep 28, 2024: 3.72 ft, moderate flooding Oct 2, 2024: 3.80 ft, moderate flooding Nov 15, 2024: 3.95 ft, moderate flooding May 14, 2025: 3.27 ft, minor flooding May 22, 2025: 3.69 ft, minor flooding Jun 16, 2025: 3.28 ft, minor flooding Jun 28, 2025: 3.35 ft, minor flooding Aug 3, 2025: 3.35 ft, minor flooding Aug 18, 2025: 3.30 ft, minor flooding Aug 23, 2025: 4.19 ft, moderate flooding Sep 5, 2025: 3.56 ft, minor flooding Sep 11, 2025: 3.59 ft, minor flooding Sep 18, 2025: 3.56 ft, minor flooding Oct 2, 2025: 3.81 ft, moderate flooding Oct 12, 2025: 3.75 ft, moderate flooding Oct 19, 2025: 3.74 ft, moderate flooding Oct 31, 2025: 4.42 ft, major flooding Apr 19, 2026: 3.45 ft, minor flooding Jun 1, 2026: 3.44 ft, minor flooding Jun 15, 2026: 3.53 ft, minor flooding Jul 13, 2026: 3.38 ft, minor flooding Aug 2, 2026: 3.26 ft, minor flooding Sep 27, 2026: 4.25 ft, major flooding Highest, 5.14 ft, Oct 30, 2021 2005 2010 2015 2020 2025 Crests at or above flood stage, by decade Crests at or above flood stage per decade, Chesapeake Bay at Bishops Head (IN MLLW) 2000s: 11 2010s: 87 2020s: 88 88 2000s 2010s 2020s These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable. 05 Other gauges in Dorchester County Dorchester County: every hazard · River floods across the country · Maryland
NOAA National Water Prediction Service, gauge BISM2, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.