Gulf Coast Gauges

Caernarvon Outfall Channel at Caernarvon water level

USGS gauge 295124089542100 · Plaquemines Parish · New Orleans and the Northshore · NWS gauge COCL1

1.55 ft

gage height, Oct 23, 2026 at 2:30 PM CDT · 3 hours ago

Highest since 2001 (USGS)
8.87 ft (August 29, 2021)
Usual range
1.28 to 2.70 ft

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

No National Weather Service alert covering Plaquemines Parish 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

1.0 1.8 2.7 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 -0.46 ft NAVD88. It is not a water depth and not an elevation: add -0.46 ft to get the water surface elevation.

Daily highs and lows since September 11, 2026

0.9 2.5 4.2 2026-09-11 – 2026-10-23 · bars are daily low to high

Annual peaks since 2001

In 26 complete water years of comparable USGS records (since 2001), the highest peak was 8.87 ft on August 29, 2021. So far in water year 2027 (since October 1) the highest reading is 4.18 ft on October 9, 2026, higher than the annual peak in 16 of 26 years.

2 4 6 7 9 2005 2010 2015 2020 2025 Water year 2001: 2.90 ft on March 14, 2001 Water year 2002: 6.00 ft on September 26, 2002 Water year 2003: 3.20 ft on February 22, 2003 Water year 2004: 3.21 ft on February 8, 2004 Water year 2005: 4.86 ft on October 10, 2004 Water year 2006: 2.67 ft on April 20, 2006 Water year 2007: 3.09 ft on November 7, 2006 Water year 2008: 7.30 ft on September 1, 2008 Water year 2009: 3.18 ft on September 14, 2009 Water year 2010: 3.76 ft on July 7, 2010 Water year 2011: 4.99 ft on September 3, 2011 Water year 2012: 3.15 ft on August 29, 2012 Water year 2013: 2.68 ft on May 31, 2013 Water year 2014: 2.33 ft on October 6, 2013 Water year 2015: 2.56 ft on September 28, 2015 Water year 2016: 4.16 ft on April 17, 2016 Water year 2017: 4.53 ft on June 21, 2017 Water year 2018: 4.17 ft on October 3, 2017 Water year 2019: 4.58 ft on October 10, 2018 Water year 2020: 5.55 ft on September 21, 2020 Water year 2021: 8.87 ft on August 29, 2021 Water year 2022: 3.81 ft on February 28, 2022 Water year 2023: 4.18 ft on February 16, 2023 Water year 2024: 4.57 ft on June 19, 2024 Water year 2025: 3.78 ft on February 14, 2025 Water year 2026: 3.97 ft on October 5, 2025 Water year 2027 so far: 4.18 ft on October 9, 2026 2021 2008 2002

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.

Download the readings

caernarvon-outfall-channel-at-caernarvon.csv (CSV): every reading stored for this gauge since September 11, 2026, 4,043 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. This site is not affiliated with either agency.