Gulf Coast Gauges

Nueces River at Calallen water level

USGS gauge 08211500 · Nueces County · Corpus Christi and the Coastal Bend · NWS gauge CAAT2

3.77 ft

gage height, Oct 23, 2026 at 1:30 PM CDT · 35 minutes ago

Below NWS minor flood stage
3.2 ft
NWS action stage
6.0 ft
NWS minor flood stage
7.0 ft
NWS moderate flood stage
7.5 ft
NWS major flood stage
8.5 ft
Highest since 1942 (USGS)
13.58 ft (July 13, 1942)
Usual range
2.21 to 4.78 ft

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

No National Weather Service alert covering Nueces County was active when this page was generated (Oct 23, 2026 at 2:05 PM CDT). Alerts are issued and expire at any time; the current list is at alerts.weather.gov.

Last 7 days

2.2 3.5 4.8 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 0.38 ft NAVD88. It is not a water depth and not an elevation: add 0.38 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

1.9 3.7 5.6 2026-09-11 – 2026-10-23 · bars are daily low to high

Annual peaks since 1942

In 44 complete water years of comparable USGS records (since 1942), the highest peak was 13.58 ft on July 13, 1942. So far in water year 2027 (since October 1) the highest reading is 5.58 ft on October 3, 2026, higher than the annual peak in 8 of 44 years.

4 7 9 12 14 1950 1960 1970 1980 1990 2000 2010 2020 major 8.5 ft moderate 7.5 ft minor 7 ft action 6 ft Water year 1942: 13.58 ft on July 13, 1942 Water year 1983: 5.47 ft on June 23, 1983 Water year 1984: 4.87 ft on January 29, 1984 Water year 1985: 8.99 ft on October 20, 1984 Water year 1986: 8.06 ft on November 1, 1985 Water year 1987: 9.25 ft on June 11, 1987 Water year 1988: 5.81 ft on October 24, 1987 Water year 1989: 5.26 ft on December 9, 1988 Water year 1990: 8.21 ft on July 24, 1990 Water year 1991: 6.19 ft on May 19, 1991 Water year 1992: 8.94 ft on May 25, 1992 Water year 1993: 8.08 ft on July 3, 1993 Water year 1994: 6.52 ft on May 1, 1994 Water year 1995: 6.88 ft on October 8, 1994 Water year 1996: 5.86 ft on October 29, 1995 Water year 1997: 7.76 ft on June 26, 1997 Water year 1998: 7.57 ft on October 15, 1997 Water year 1999: 7.50 ft on October 23, 1998 Water year 2000: 5.89 ft on March 15, 2000 Water year 2001: 6.45 ft on August 31, 2001 Water year 2002: 13.21 ft on September 16, 2002 Water year 2003: 8.90 ft on October 29, 2002 Water year 2004: 9.24 ft on October 24, 2003 Water year 2005: 7.29 ft on November 24, 2004 Water year 2006: 6.34 ft on September 19, 2006 Water year 2007: 10.67 ft on July 15, 2007 Water year 2008: 5.93 ft on October 23, 2007 Water year 2009: 5.35 ft on September 27, 2009 Water year 2010: 7.19 ft on September 21, 2010 Water year 2011: 5.18 ft on January 17, 2011 Water year 2013: 5.33 ft on September 21, 2013 Water year 2014: 6.14 ft on October 28, 2013 Water year 2015: 8.70 ft on May 24, 2015 Water year 2016: 5.64 ft on November 8, 2015 Water year 2017: 5.81 ft on October 6, 2016 Water year 2018: 6.97 ft on October 17, 2017 Water year 2019: 8.28 ft on November 5, 2018 Water year 2020: 5.79 ft on September 11, 2020 Water year 2021: 6.81 ft on July 8, 2021 Water year 2022: 6.07 ft on October 2, 2021 Water year 2023: 5.69 ft on August 22, 2023 Water year 2024: 5.43 ft on June 20, 2024 Water year 2025: 5.14 ft on March 28, 2025 Water year 2026: 6.30 ft on May 28, 2026 Water year 2027 so far: 5.58 ft on October 3, 2026 1942 2002 2007

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.

NWS historic crests

DateCrestAbove minor flood stage
September 24, 196716.00 ft9.0 ft
September 15, 200212.97 ft6.0 ft
July 18, 200212.24 ft5.2 ft
July 15, 200710.63 ft3.6 ft
June 26, 19879.53 ft2.5 ft
June 11, 19879.25 ft2.2 ft
October 24, 20039.24 ft2.2 ft
July 12, 20029.00 ft2.0 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

nueces-river-at-calallen.csv (CSV): every reading stored for this gauge since September 11, 2026, 4,037 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.