Bayou Lacassine near Lake Arthur water level

Name: Bayou Lacassine near Lake Arthur water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Bayou Lacassine, Louisiana, United States

Directions

Very high for late October

Water level

10.06ft Steady over the last 24 hours

Measured Oct 21, 2026, 05:00 AM CDT (25 min ago)

History

7 days 30 days 1 year Years compared

20252026

Water level Normal range (10–90 %)

What this means

Bayou Lacassine near Lake Arthur is well above normal at 10.06 ft.

The median for late October is 8.87 ft, based on 15 years of readings, so the river stage is 1.19 ft above typical. On the same day last year the reading was 10.32 ft, a difference of −0.26 ft.

It has barely moved over the past 24 hours. In the last month it has stayed between 9.63 ft and 10.38 ft.

That stands out in fall, when many rivers are usually near their lowest.

Compared with 15 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 8.87 ft1.19 ft above the median for this date
Normal for this date: 7.65 ft – 9.96 ft8 years in 10 fall in this range (15 years of records)
Same day last year: 10.32 ft−0.26 ft
Lowest and highest in 30 days: 9.63 ft – 10.38 ft
Lowest and highest in 12 months: 9.73 ft – 11.85 ft

Flood levels and safety

Most flood deaths in the US happen in vehicles. Six inches of fast water can knock an adult off their feet, and a foot or two can float a car. If a road is covered, turn around.

Readings can change quickly after heavy rain upstream, so check again before heading near the water.

Weather at the gauge

No rain in the last 3 days.

20 Tue 80° 55° – Wind 11 mph

21 Wed 81° 56° – Wind 8 mph

22 Thu 85° 52° – Wind 6 mph

23 Fri 85° 60° – Wind 8 mph

24 Sat 83° 60° – Wind 10 mph

25 Sun 82° 56° – Wind 11 mph

26 Mon 83° 58° – Wind 8 mph

Forecast: Open-Meteo

Sunrise 07:18 AM Sunset 06:36 PM Daylight 11 hr, 17 min Waxing gibbous 76%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Mermentau River At MermentauRiver gauge	1.94 ft	Normal	−0.01 ft	19 mi
Bayou Queue De Tortue @ RicevilleRiver gauge	4.74 ft	Below flood stage	−0.01 ft	22 mi
Calcasieu River at I-10 at Lake CharlesRiver gauge, Calcasieu River	2.33 ft	High	+0.17 ft	25 mi
North Calcasieu Lake near HackberryLake, North Calcasieu Lake	4.27 ft	High	+0.18 ft	25 mi
Bayou Plaquemine Brule @ EsterwoodRiver gauge	7.50 ft	Below flood stage	−0.03 ft	26 mi
Bayou Des Cannes west of IotaRiver gauge	11.18 ft	Below flood stage	−0.03 ft	27 mi
Calcasieu River near KinderRiver gauge, Calcasieu River	1.46 ft	Very low	−0.01 ft	30 mi
Bayou Mallet at Hwy 91 north of IotaRiver gauge, Bayou Mallet	1.85 ft	Very low	+0.11 ft	32 mi

Questions and answers

Is Bayou Lacassine near Lake Arthur higher than last year?

No, it is 0.26 ft lower than on the same day last year, when the reading was 10.32 ft.

What is a normal level for Bayou Lacassine near Lake Arthur in late October?

The median for late October is 8.87 ft. In 8 years out of 10 the reading falls between 7.65 ft and 9.96 ft, based on 15 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 Lacassine near Lake Arthur today?

On Oct 21, 2026, 05:00 AM CDT, the water level was 10.06 ft. Steady over the last 24 hours.

Is Bayou Lacassine near Lake Arthur rising or falling?

Steady over the last 24 hours. Down 0.28 ft over the last 7 days.

Is the level of Bayou Lacassine near Lake Arthur normal?

Very high for late October. Compared with 15 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:08012470 (Agency page)
Coordinates: 30.07000, -92.87886 (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

Parameter	Last value	Time (UTC)	Quality
Water level	10.06 ft	2026-10-21 10:00	Provisional

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How to cite

U.S. Geological Survey: Bayou Lacassine near Lake Arthur (usgs:08012470). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/louisiana/bayou-lacassine-near-lake-arthur

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.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer