Gulf Coast Gauges

Greens Bayou at Ley Rd, Houston water level

USGS gauge 08076700 · Harris County · Greens Bayou watershed · NWS gauge GBLT2

2.25 ft

gage height, Oct 20, 2026 at 11:15 AM CDT · 20 minutes ago

Below NWS minor flood stage
27.8 ft
NWS action stage
27.0 ft
NWS minor flood stage
30.0 ft
NWS moderate flood stage
32.0 ft
NWS major flood stage
33.0 ft
Highest since 2018 (USGS)
33.61 ft (September 20, 2019)
Usual range
1.21 to 3.13 ft

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

No National Weather Service alert covering Harris County was active when this page was generated (Oct 20, 2026 at 11:35 AM CDT). Alerts are issued and expire at any time; the current list is at alerts.weather.gov.

Last 7 days

0.2 1.6 3.1 Oct 14 Oct 15 Oct 16 Oct 17 Oct 18 Oct 19 Oct 20

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 the gauge's zero point. This gauge's zero is set at 0 ft NAVD88, so its gage height is the water surface elevation above that datum. It is not a water depth.

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

0.2 2.2 4.2 2026-09-11 – 2026-10-20 · bars are daily low to high

Annual peaks since 1972

In 9 complete water years of comparable USGS records (since 2018), the highest peak was 33.61 ft on September 20, 2019. So far in water year 2027 (since October 1) the highest reading is 4.18 ft on October 2, 2026.

1 13 25 36 48 1980 1990 2000 2010 2020 major 33 ft moderate 32 ft minor 30 ft action 27 ft Water year 1972: 31.54 ft on March 21, 1972 (different datum or site: not compared) Water year 1973: 34.27 ft on June 13, 1973 (different datum or site: not compared) Water year 1974: 22.30 ft on January 19, 1974 (different datum or site: not compared) Water year 1975: 21.18 ft on May 30, 1975 (different datum or site: not compared) Water year 1976: 27.17 ft on April 19, 1976 (different datum or site: not compared) Water year 1977: 21.14 ft on April 21, 1977 (different datum or site: not compared) Water year 1978: 27.75 ft on June 7, 1978 (different datum or site: not compared) Water year 1979: 33.61 ft on September 20, 1979 (different datum or site: not compared) Water year 1980: 26.15 ft on January 22, 1980 (different datum or site: not compared) Water year 1981: 30.53 ft on May 4, 1981 (different datum or site: not compared) Water year 1982: 24.90 ft on May 14, 1982 (different datum or site: not compared) Water year 1983: 32.05 ft on August 19, 1983 (different datum or site: not compared) Water year 1984: 20.35 ft on January 9, 1984 (different datum or site: not compared) Water year 1985: 32.13 ft on October 26, 1984 (different datum or site: not compared) Water year 1986: 22.75 ft on February 4, 1986 (different datum or site: not compared) Water year 1987: 28.30 ft on June 12, 1987 (different datum or site: not compared) Water year 1988: 17.80 ft on March 18, 1988 (different datum or site: not compared) Water year 1989: 39.40 ft on June 27, 1989 (different datum or site: not compared) Water year 1990: 21.02 ft on April 27, 1990 (different datum or site: not compared) Water year 1991: 26.31 ft on April 5, 1991 (different datum or site: not compared) Water year 1992: 33.90 ft on March 4, 1992 (different datum or site: not compared) Water year 1993: 31.73 ft on March 2, 1993 (different datum or site: not compared) Water year 1994: 26.78 ft on May 16, 1994 (different datum or site: not compared) Water year 1996: 23.30 ft on December 18, 1995 (different datum or site: not compared) Water year 1997: 34.15 ft on May 25, 1997 (different datum or site: not compared) Water year 1998: 33.49 ft on September 11, 1998 (different datum or site: not compared) Water year 1999: 31.38 ft on November 13, 1998 (different datum or site: not compared) Water year 2000: 30.64 ft on May 20, 2000 (different datum or site: not compared) Water year 2001: 44.02 ft on June 9, 2001 (different datum or site: not compared) Water year 2002: 29.50 ft on April 8, 2002 (different datum or site: not compared) Water year 2003: 36.66 ft on October 29, 2002 (different datum or site: not compared) Water year 2004: 34.19 ft on November 18, 2003 (different datum or site: not compared) Water year 2005: 30.75 ft on November 23, 2004 (different datum or site: not compared) Water year 2006: 34.06 ft on June 19, 2006 (different datum or site: not compared) Water year 2007: 35.17 ft on October 16, 2006 (different datum or site: not compared) Water year 2008: 36.24 ft on September 14, 2008 (different datum or site: not compared) Water year 2009: 32.57 ft on April 19, 2009 (different datum or site: not compared) Water year 2010: 32.80 ft on July 3, 2010 (different datum or site: not compared) Water year 2011: 19.65 ft on December 30, 2010 (different datum or site: not compared) Water year 2012: 23.93 ft on February 18, 2012 (different datum or site: not compared) Water year 2013: 22.11 ft on September 21, 2013 (different datum or site: not compared) Water year 2014: 26.94 ft on August 1, 2014 (different datum or site: not compared) Water year 2015: 34.19 ft on May 26, 2015 (different datum or site: not compared) Water year 2016: 34.28 ft on October 31, 2015 (different datum or site: not compared) Water year 2017: 44.85 ft on August 28, 2017 (different datum or site: not compared) Water year 2018: 24.47 ft on July 4, 2018 Water year 2019: 33.61 ft on September 20, 2019 Water year 2020: 24.44 ft on September 23, 2020 Water year 2021: 26.00 ft on May 24, 2021 Water year 2022: 20.28 ft on January 9, 2022 Water year 2023: 19.32 ft on January 24, 2023 Water year 2024: 29.83 ft on July 8, 2024 Water year 2025: 16.62 ft on February 19, 2025 Water year 2026: 20.70 ft on June 15, 2026 Water year 2027 so far: 4.18 ft on October 2, 2026 2019 2024

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 (45 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
August 28, 201744.85 ft14.9 ft
June 27, 198939.40 ft9.4 ft
May 18, 198936.75 ft6.8 ft
October 29, 200236.66 ft6.7 ft
September 14, 200836.24 ft6.2 ft
October 18, 199436.10 ft6.1 ft
October 16, 200635.17 ft5.2 ft
June 6, 200134.60 ft4.6 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.

In past storms

StormPeakPeak timeRiseCompared with its record
October 1–2, 20264.18 ftOct 2, 2026 at 6:45 AM CDT0.7 fthighest since water year 2026 (20.70 ft on June 15, 2026)

Harris County gauge nearby

Greens Bayou at Ley Road, less than 0.1 mi away, read 2.18 ft at Oct 20, 2026 at 9:09 AM CDT, 27.8 ft below its top of bank. Both gauges report water surface elevation.

Download the readings

greens-bayou-at-ley-rd-houston.csv (CSV): every reading stored for this gauge since September 11, 2026, 947 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.