Highest listed crest 9.07 ft August 19, 1989
Flood stage 6.5 ft Major flooding from 8.5 ft
Crests at major 2 28th of 108 gauges in Maryland
Most recent flood crest March 29, 2024 6.55 ft, minor flooding Listed crests at the Nassawango Creek near Snow Hill, 1950 to 2025 2 4 6 8 10 ft Flood stage 6.5 ft Major 8.5 ft Mar 25, 1950: 5.41 ft, below flood stage; 215 cubic feet per second Jun 12, 1951: 5.75 ft, below flood stage; 258 cubic feet per second Mar 26, 1952: 6.70 ft, minor flooding; 486 cubic feet per second Aug 16, 1953: 7.82 ft, moderate flooding; 988 cubic feet per second Apr 30, 1954: 6.51 ft, minor flooding; 430 cubic feet per second Aug 14, 1955: 7.57 ft, moderate flooding; 920 cubic feet per second Oct 16, 1955: 6.19 ft, action stage; 348 cubic feet per second Nov 2, 1956: 6.79 ft, minor flooding; 542 cubic feet per second Mar 21, 1958: 7.36 ft, minor flooding; 761 cubic feet per second Jul 17, 1959: 6.95 ft, minor flooding; 597 cubic feet per second Nov 26, 1959: 6.09 ft, action stage; 361 cubic feet per second Feb 10, 1961: 7.10 ft, minor flooding; 653 cubic feet per second Jan 7, 1962: 7.14 ft, minor flooding; 669 cubic feet per second Mar 13, 1963: 7.00 ft, minor flooding; 615 cubic feet per second Apr 10, 1964: 6.95 ft, minor flooding; 597 cubic feet per second Aug 5, 1965: 4.11 ft, below flood stage; 121 cubic feet per second Feb 15, 1966: 5.00 ft, below flood stage; 200 cubic feet per second Aug 25, 1967: 6.64 ft, minor flooding; 452 cubic feet per second Mar 19, 1968: 6.42 ft, action stage; 434 cubic feet per second Aug 22, 1969: 6.59 ft, minor flooding; 480 cubic feet per second Dec 27, 1969: 6.43 ft, action stage; 437 cubic feet per second May 18, 1971: 6.01 ft, action stage; 347 cubic feet per second Jun 30, 1972: 7.63 ft, moderate flooding; 1,320 cubic feet per second Feb 3, 1973: 7.00 ft, minor flooding; 760 cubic feet per second Aug 11, 1974: 6.00 ft, action stage; 365 cubic feet per second Mar 20, 1975: 6.73 ft, minor flooding; 615 cubic feet per second Jan 2, 1976: 6.14 ft, action stage; 416 cubic feet per second Oct 22, 1976: 6.31 ft, action stage; 463 cubic feet per second Dec 20, 1977: 7.37 ft, minor flooding; 1,270 cubic feet per second Feb 26, 1979: 7.95 ft, moderate flooding; 1,940 cubic feet per second Nov 12, 1979: 7.30 ft, minor flooding; 1,210 cubic feet per second Feb 23, 1981: 4.49 ft, below flood stage; 181 cubic feet per second Feb 19, 1982: 5.77 ft, below flood stage; 386 cubic feet per second Apr 17, 1983: 6.77 ft, minor flooding; 806 cubic feet per second Mar 30, 1984: 6.86 ft, minor flooding; 864 cubic feet per second Sep 29, 1985: 6.71 ft, minor flooding; 635 cubic feet per second Dec 2, 1985: 6.26 ft, action stage; 434 cubic feet per second Jan 21, 1987: 6.29 ft, action stage; 445 cubic feet per second Apr 9, 1988: 6.06 ft, action stage; 400 cubic feet per second Aug 19, 1989: 9.07 ft, major flooding May 30, 1990: 6.39 ft, action stage; 636 cubic feet per second Jan 13, 1991: 6.19 ft, action stage; 546 cubic feet per second Aug 19, 1992: 6.51 ft, minor flooding; 695 cubic feet per second Mar 14, 1993: 7.28 ft, minor flooding; 1,210 cubic feet per second Mar 3, 1994: 7.72 ft, moderate flooding; 1,760 cubic feet per second Mar 10, 1995: 4.49 ft, below flood stage; 171 cubic feet per second Aug 14, 1996: 6.54 ft, minor flooding; 739 cubic feet per second Dec 15, 1996: 6.40 ft, action stage; 660 cubic feet per second Jan 29, 1998: 8.13 ft, moderate flooding; 2,300 cubic feet per second Mar 16, 1999: 6.28 ft, action stage; 598 cubic feet per second Mar 23, 2000: 7.31 ft, minor flooding; 1,320 cubic feet per second Mar 22, 2001: 6.61 ft, minor flooding; 781 cubic feet per second Sep 2, 2002: 7.06 ft, minor flooding; 1,100 cubic feet per second Feb 23, 2003: 6.21 ft, action stage; 564 cubic feet per second Apr 14, 2004: 6.62 ft, minor flooding; 787 cubic feet per second Jul 9, 2005: 7.14 ft, minor flooding; 1,170 cubic feet per second Sep 3, 2006: 5.82 ft, below flood stage; 437 cubic feet per second Apr 17, 2007: 6.47 ft, action stage; 699 cubic feet per second May 14, 2008: 5.39 ft, below flood stage; 338 cubic feet per second Dec 13, 2008: 5.89 ft, below flood stage; 470 cubic feet per second Nov 14, 2009: 7.50 ft, moderate flooding; 1,660 cubic feet per second Aug 29, 2011: 5.53 ft, below flood stage; 330 cubic feet per second Mar 2, 2012: 4.53 ft, below flood stage; 175 cubic feet per second Oct 30, 2012: 7.25 ft, minor flooding; 1,270 cubic feet per second Aug 2, 2013: 7.10 ft, minor flooding; 1,180 cubic feet per second Mar 31, 2014: 5.78 ft, below flood stage; 467 cubic feet per second Apr 21, 2015: 5.28 ft, below flood stage; 325 cubic feet per second Sep 30, 2016: 8.95 ft, major flooding; 3,380 cubic feet per second Aug 13, 2017: 7.71 ft, moderate flooding; 1,880 cubic feet per second May 19, 2018: 8.10 ft, moderate flooding; 2,400 cubic feet per second Jun 5, 2018: 5.61 ft, below flood stage; 447 cubic feet per second Oct 13, 2018: 7.14 ft, minor flooding; 1,400 cubic feet per second Nov 17, 2018: 5.25 ft, below flood stage; 324 cubic feet per second Nov 26, 2018: 5.35 ft, below flood stage; 354 cubic feet per second Dec 17, 2018: 5.17 ft, below flood stage; 298 cubic feet per second Jan 25, 2019: 5.73 ft, below flood stage; 499 cubic feet per second Feb 22, 2019: 5.90 ft, below flood stage; 567 cubic feet per second Mar 4, 2019: 6.00 ft, action stage; 617 cubic feet per second Nov 13, 2020: 7.29 ft, minor flooding; 1,400 cubic feet per second Dec 6, 2020: 7.49 ft, minor flooding; 1,600 cubic feet per second Jan 4, 2021: 5.72 ft, below flood stage; 376 cubic feet per second Feb 3, 2021: 5.03 ft, below flood stage; 225 cubic feet per second Feb 20, 2021: 5.81 ft, below flood stage; 412 cubic feet per second Mar 2, 2021: 5.42 ft, below flood stage; 285 cubic feet per second Mar 20, 2021: 5.22 ft, below flood stage; 250 cubic feet per second Mar 26, 2021: 5.66 ft, below flood stage; 353 cubic feet per second Jan 18, 2022: 4.35 ft, below flood stage; 164 cubic feet per second Feb 9, 2022: 3.71 ft, below flood stage; 114 cubic feet per second Mar 13, 2022: 4.22 ft, below flood stage; 153 cubic feet per second Apr 20, 2022: 3.83 ft, below flood stage; 123 cubic feet per second Jun 16, 2022: 3.50 ft, below flood stage; 82 cubic feet per second Dec 16, 2022: 5.84 ft, below flood stage; 442 cubic feet per second Jan 27, 2023: 4.71 ft, below flood stage; 222 cubic feet per second Jul 17, 2023: 5.20 ft, below flood stage; 246 cubic feet per second Dec 18, 2023: 7.71 ft, moderate flooding; 1,830 cubic feet per second Dec 30, 2023: 3.63 ft, below flood stage; 121 cubic feet per second Jan 10, 2024: 7.02 ft, minor flooding; 1,170 cubic feet per second Mar 3, 2024: 6.07 ft, action stage; 589 cubic feet per second Mar 7, 2024: 7.28 ft, minor flooding; 1,400 cubic feet per second Mar 29, 2024: 6.55 ft, minor flooding; 805 cubic feet per second Mar 18, 2025: 5.91 ft, below flood stage; 538 cubic feet per second Highest, 9.07 ft, Aug 19, 1989 1950 1960 1970 1980 1990 2000 2010 2020 Crests at or above flood stage, by decade Crests at or above flood stage per decade, Nassawango Creek near Snow Hill 1950s: 7 7 1960s: 6 1970s: 6 1980s: 4 1990s: 5 2000s: 6 2010s: 6 2020s: 6 1950s 1960s 1970s 1980s 1990s 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 Worcester County Worcester County: every hazard · River floods across the country · Maryland
NOAA National Water Prediction Service, gauge NSWM2, 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.