Nivelmap
EN

Bayou Mallet at Hwy 91 north of Iota water level

River gauge, Bayou Mallet, Louisiana, United States

Directions

Right now

Very low for late October

Water level

1.81ft Up 0.07 ft over the last 24 hours

5 10 Minor floodstage 12.00 ft

History

History
2.02.53.0ftOct 16Oct 17Oct 18Oct 20Oct 212.02.53.0ftOct 16Oct 18Oct 21
2.02.53.0ftSep 22Sep 29Oct 6Oct 13Oct 212.02.53.0ftSep 22Oct 6Oct 21
51015ftOct 2025Jan 2026Apr 2026Jul 2026Oct 2026Minor flood stage51015ftOct 2025Apr 2026Oct 2026Minor flood stage
51015ftJanMarMayJulSepNov202651015ftJanAprJulOct2026

20252026

Water level Normal range (10–90 %) Minor flood stage

What this means

Bayou Mallet at Hwy 91 north of Iota is running far below normal at 1.81 ft.

The median for late October is 2.61 ft, based on 5 years of readings, so the river stage is 0.80 ft below typical. It is 10.19 ft below the flood stage of 12.00 ft. On the same day last year the reading was 2.33 ft, a difference of −0.52 ft.

It has risen 0.07 ft over the past 24 hours. In the last month it has stayed between 1.74 ft and 2.83 ft.

Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.

Compared with 5 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
2.61 ft0.80 ft below the median for this date
Normal for this date
2.14 ft – 3.13 ft8 years in 10 fall in this range (5 years of records)
Same day last year
2.33 ft−0.52 ft
Lowest and highest in 30 days
1.74 ft – 2.83 ft
Lowest and highest in 12 months
1.58 ft – 14.78 ft

Floating and fishing near Bayou Mallet at Hwy 91 north of Iota

Low water exposes gravel bars that make good wading access, but some boat ramps may be left high and dry.

Flood stage here is 12.00 ft, 10.19 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

Weather at the gauge

No rain in the last 3 days.

21 Wed 80° 51° – Wind 7 mph
22 Thu 85° 53° – Wind 7 mph
23 Fri 86° 58° – Wind 7 mph
24 Sat 83° 57° – Wind 11 mph
25 Sun 82° 54° – Wind 10 mph
26 Mon 83° 59° – Wind 9 mph
27 Tue 82° 62° – Wind 6 mph

Forecast: Open-Meteo

Sunrise 07:17 AM Sunset 06:34 PM Daylight 11 hr, 17 min Waxing gibbous 75%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Bayou Des Cannes west of IotaRiver gauge 11.21 ft Below flood stage +0.01 ft 5.0 mi
Bayou Des Cannes near EuniceRiver gauge, Bayou Des Cannes 0.06 ft Very low −0.02 ft 6.1 mi
Bayou Nezpique near BasileRiver gauge, Bayou Nezpique 1.66 ft Low −0.07 ft 10 mi
Bayou Plaquemine Brule @ EsterwoodRiver gauge 7.53 ft Below flood stage −0.01 ft 14 mi
Mermentau River At MermentauRiver gauge 1.95 ft Normal −0.03 ft 15 mi
Bayou Queue De Tortue @ RicevilleRiver gauge 4.75 ft Below flood stage ±0 22 mi
Calcasieu River near OberlinRiver gauge, Calcasieu River 1.02 ft Very low −0.01 ft 25 mi
Calcasieu River near KinderRiver gauge, Calcasieu River 1.46 ft Very low −0.02 ft 26 mi

Questions and answers

Is Bayou Mallet at Hwy 91 north of Iota higher than last year?

No, it is 0.52 ft lower than on the same day last year, when the reading was 2.33 ft.

What is flood stage for Bayou Mallet at Hwy 91 north of Iota?

The official flood stage is 12.00 ft. The level is currently 10.19 ft below it.

What is a normal level for Bayou Mallet at Hwy 91 north of Iota in late October?

The median for late October is 2.61 ft. In 8 years out of 10 the reading falls between 2.14 ft and 3.13 ft, based on 5 years of records.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Bayou Mallet at Hwy 91 north of Iota today?

On Oct 21, 2026, 02:00 AM CDT, the water level was 1.81 ft. Up 0.07 ft over the last 24 hours.

Is Bayou Mallet at Hwy 91 north of Iota rising or falling?

Up 0.07 ft over the last 24 hours. Down 0.18 ft over the last 7 days.

Is the level of Bayou Mallet at Hwy 91 north of Iota normal?

Very low for late October. Compared with 5 years of daily readings for this time of year.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:08010120 (Agency page)
Coordinates
30.39444, -92.49769 (WGS84)
Vertical datum
NAVD88
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Water level 1.81 ft 2026-10-21 07:00 Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

U.S. Geological Survey: Bayou Mallet at Hwy 91 north of Iota (usgs:08010120). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/louisiana/bayou-mallet-at-hwy-91-north-of-iota

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.