Gulf Coast Gauges

Mississippi Sound at USGS Round Island Light water level

USGS gauge 301849088350000 · Jackson County · Mississippi Gulf Coast · NWS gauge RISM6

2.95 ft

gage height, Oct 23, 2026 at 2:45 PM CDT · 3 hours ago

Highest since 2012 (USGS)
7.48 ft (August 29, 2012)
Usual range
2.00 to 3.63 ft

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

No National Weather Service alert covering Jackson County was active when this page was generated (Oct 23, 2026 at 5:50 PM CDT). Alerts are issued and expire at any time; the current list is at alerts.weather.gov.

Last 7 days

1.8 2.7 3.6 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. It is not a water depth. USGS publishes no datum elevation for this gauge, so it can't be converted to an elevation here.

Daily highs and lows since September 11, 2026

1.4 3.0 4.7 2026-09-11 – 2026-10-23 · bars are daily low to high

Annual peaks since 2012

In 6 complete water years of comparable USGS records (since 2012), the highest peak was 7.48 ft on August 29, 2012. So far in water year 2027 (since October 1) the highest reading is 4.72 ft on October 2, 2026, higher than the annual peak in 2 of 6 years.

4 5 6 7 8 2015 2020 2025 Water year 2012: 7.48 ft on August 29, 2012 Water year 2013: 4.37 ft on December 25, 2012 Water year 2014: 4.33 ft on April 29, 2014 Water year 2024: 5.46 ft on September 12, 2024 Water year 2025: 4.93 ft on November 18, 2024 Water year 2026: 5.07 ft on July 22, 2026 Water year 2027 so far: 4.72 ft on October 2, 2026 2012 2024 2026

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

mississippi-sound-at-usgs-round-island-light.csv (CSV): every reading stored for this gauge since September 11, 2026, 4,047 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.