gage height, Oct 23, 2026 at 3:00 PM CDT · 2 hours ago
Below NWS minor flood stage
7.6 ft
NWS action stage
10.0 ft
NWS minor flood stage
11.0 ft
NWS moderate flood stage
13.0 ft
NWS major flood stage
14.0 ft
Highest since 1997 (USGS)
15.01 ft (August 17, 2016)
Usual range
3.21 to 3.96 ft
USGS marks recent readings as provisional: they can be revised after review.
No National Weather Service alert covering St. Martin 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
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
Annual peaks since 1997
In 30 complete water years of comparable USGS records (since 1997), the highest peak was 15.01 ft on August 17, 2016. So far in water year 2027 (since October 1) the highest reading is 4.22 ft on October 1, 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.
NWS historic crests
Date
Crest
Above minor flood stage
August 17, 2016
15.00 ft
4.0 ft
June 10, 2001
12.78 ft
1.8 ft
May 19, 2004
11.72 ft
0.7 ft
January 15, 1998
10.56 ft
—
November 5, 2002
10.50 ft
—
April 8, 2002
9.99 ft
—
September 24, 2005
9.94 ft
—
May 31, 1999
8.70 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
vermilion-river-near-lafayette.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.