Gulf Coast Gauges

Biloxi River at Wortham water level

USGS gauge 02481000 · Harrison County · Mississippi Gulf Coast · NWS gauge BLWM6

-0.93 ft

gage height, Oct 23, 2026 at 3:00 PM CDT · 2 hours ago

Below NWS minor flood stage
16.9 ft
NWS action stage
16.0 ft
NWS minor flood stage
16.0 ft
NWS moderate flood stage
18.0 ft
NWS major flood stage
23.0 ft
Highest since 1979 (USGS)
31.85 ft (June 19, 2026)
Usual range
-0.92 to -0.52 ft

USGS marks recent readings as provisional: they can be revised after review.

No National Weather Service alert covering Harrison County was active when this page was generated (Oct 23, 2026 at 5:05 PM CDT). Alerts are issued and expire at any time; the current list is at alerts.weather.gov.

Last 7 days

-0.9 -0.7 -0.4 Oct 17 Oct 18 Oct 19 Oct 20 Oct 21 Oct 22 Oct 23

Hourly averages of USGS readings. The shaded band is this gauge's usual range: the middle 80% of its readings since September 11, 2026.

How to read this gauge

Gage height is the height of the water surface above this gauge's own zero point, which sits at 18.40 ft NAVD88. It is not a water depth and not an elevation: add 18.40 ft to get the water surface elevation.

The flood stages are the National Weather Service's, on the same scale as the gage height; they are the NWS's references for this location, not estimates made here.

Daily highs and lows since September 11, 2026

-1.0 -0.6 -0.3 2026-09-11 – 2026-10-23 · bars are daily low to high

Annual peaks since 1953

In 48 complete water years of comparable USGS records (since 1979), the highest peak was 31.85 ft on June 19, 2026. So far in water year 2027 (since October 1) the highest reading is -0.60 ft on October 7, 2026.

-3 6 16 25 34 1960 1970 1980 1990 2000 2010 2020 major 23 ft moderate 18 ft action 16 ft minor 16 ft Water year 1953: 16.84 ft on April 25, 1953 (different datum or site: not compared) Water year 1954: 10.28 ft on December 12, 1953 (different datum or site: not compared) Water year 1955: 19.33 ft on April 13, 1955 (different datum or site: not compared) Water year 1956: 13.86 ft on September 24, 1956 (different datum or site: not compared) Water year 1957: 21.08 ft on September 18, 1957 (different datum or site: not compared) Water year 1958: 11.34 ft on January 21, 1958 (different datum or site: not compared) Water year 1959: 15.47 ft on June 9, 1959 (different datum or site: not compared) Water year 1960: 16.60 ft on September 16, 1960 (different datum or site: not compared) Water year 1961: 20.50 ft on March 17, 1961 (different datum or site: not compared) Water year 1962: 18.26 ft on November 14, 1961 (different datum or site: not compared) Water year 1963: 8.19 ft on January 20, 1963 (different datum or site: not compared) Water year 1964: 20.94 ft on April 27, 1964 (different datum or site: not compared) Water year 1965: 11.91 ft on January 23, 1965 (different datum or site: not compared) Water year 1966: 12.60 ft on January 5, 1966 (different datum or site: not compared) Water year 1967: 11.95 ft on January 1, 1967 (different datum or site: not compared) Water year 1968: 16.02 ft on December 10, 1967 (different datum or site: not compared) Water year 1969: 13.53 ft on March 18, 1969 (different datum or site: not compared) Water year 1970: 12.31 ft on March 4, 1970 (different datum or site: not compared) Water year 1971: 13.39 ft on December 16, 1970 (different datum or site: not compared) Water year 1972: 16.84 ft on January 20, 1972 (different datum or site: not compared) Water year 1973: 20.33 ft on September 13, 1973 (different datum or site: not compared) Water year 1974: 13.15 ft on April 13, 1974 (different datum or site: not compared) Water year 1975: 12.97 ft on June 11, 1975 (different datum or site: not compared) Water year 1976: 12.44 ft on May 28, 1976 (different datum or site: not compared) Water year 1977: 16.12 ft on March 12, 1977 (different datum or site: not compared) Water year 1978: 18.43 ft on May 3, 1978 (different datum or site: not compared) Water year 1979: 15.79 ft on September 13, 1979 Water year 1980: 22.94 ft on April 13, 1980 Water year 1981: 19.29 ft on February 10, 1981 Water year 1982: 19.10 ft on April 25, 1982 Water year 1983: 25.30 ft on April 8, 1983 Water year 1984: 18.84 ft on December 11, 1983 Water year 1985: 22.55 ft on September 23, 1985 Water year 1986: 15.34 ft on October 29, 1985 Water year 1987: 20.06 ft on March 18, 1987 Water year 1988: 19.04 ft on April 2, 1988 Water year 1989: 15.16 ft on July 5, 1989 Water year 1990: 20.24 ft on May 13, 1990 Water year 1991: 20.85 ft on May 18, 1991 Water year 1992: 13.89 ft on February 17, 1992 Water year 1993: 22.96 ft on January 21, 1993 Water year 1994: 11.19 ft on October 30, 1993 Water year 1995: 28.94 ft on May 9, 1995 Water year 1996: 16.73 ft on December 19, 1995 Water year 1997: 10.80 ft on July 25, 1997 Water year 1998: 25.43 ft on September 29, 1998 Water year 1999: 13.35 ft on March 14, 1999 Water year 2000: 6.79 ft on April 14, 2000 Water year 2001: 18.24 ft on March 4, 2001 Water year 2002: 24.99 ft on September 26, 2002 Water year 2003: 22.11 ft on July 1, 2003 Water year 2004: 14.11 ft on May 13, 2004 Water year 2005: 25.61 ft on August 30, 2005 Water year 2006: 8.26 ft on April 26, 2006 Water year 2007: 22.54 ft on December 22, 2006 Water year 2008: 17.66 ft on April 5, 2008 Water year 2009: 20.20 ft on March 28, 2009 Water year 2010: 15.94 ft on December 15, 2009 Water year 2011: 12.01 ft on September 5, 2011 Water year 2012: 26.32 ft on August 30, 2012 Water year 2013: 13.99 ft on February 26, 2013 Water year 2014: 14.88 ft on March 28, 2014 Water year 2015: 22.02 ft on May 17, 2015 Water year 2016: 18.84 ft on April 28, 2016 Water year 2017: 22.21 ft on June 22, 2017 Water year 2018: 21.48 ft on April 15, 2018 Water year 2019: 26.70 ft on May 12, 2019 Water year 2020: 11.31 ft on June 8, 2020 Water year 2021: 24.69 ft on August 31, 2021 Water year 2022: 15.11 ft on August 26, 2022 Water year 2023: 12.13 ft on January 30, 2023 Water year 2024: 14.55 ft on April 11, 2024 Water year 2025: 13.09 ft on May 10, 2025 Water year 2026: 31.85 ft on June 19, 2026 Water year 2027 so far: -0.60 ft on October 7, 2026 2026 1995 2019

Each dot is the highest gage height of a water year (October to September), from the USGS annual peak record, with recent years USGS has not published yet taken from its 15-minute readings and this site's own; hover a dot for its date. Dashed lines are NWS flood stages. Grey hollow dots (26 years) were measured on a different datum or at a different site, or before the gauge's datum last changed, so they are shown but not compared.

NWS historic crests

DateCrestAbove minor flood stage
May 9, 199528.94 ft12.9 ft
May 12, 201926.70 ft10.7 ft
August 30, 201226.32 ft10.3 ft
August 29, 200526.00 ft10.0 ft
September 28, 199825.43 ft9.4 ft
April 8, 198325.30 ft9.3 ft
September 26, 200224.99 ft9.0 ft
August 31, 202124.69 ft8.7 ft

The highest crests the National Weather Service lists for this gauge, as published. They can differ from the USGS annual peaks above: USGS records the year's highest gage height, which is not always the crest the NWS lists for the same flood.

Download the readings

biloxi-river-at-wortham.csv (CSV): every reading stored for this gauge since September 11, 2026, 4,049 rows, with time in UTC and Central, gage height in feet, and the USGS approval status.

Source. Gage height from the U.S. Geological Survey; flood stages and historic crests from the NWS National Water Prediction Service. This site is not affiliated with either agency.