Bayou Lacassine near Lake Arthur water level
River gauge, Bayou Lacassine, Louisiana, United States
Right now
Very high for mid-October
Water level
History
20252026
What this means
Bayou Lacassine near Lake Arthur is well above normal at 10.05 ft.
The median for mid-October is 8.98 ft, based on 14 years of readings, so the river stage is 1.07 ft above typical. On the same day last year the reading was 10.40 ft, a difference of −0.35 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 14 years of daily readings for this time of year. How to read levels
Key numbers
- Median for this date
- 8.98 ft1.07 ft above the median for this date
- Normal for this date
- 7.62 ft – 10.05 ft8 years in 10 fall in this range (14 years of records)
- Same day last year
- 10.40 ft−0.35 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
The forecast is not available right now.
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Mermentau River At MermentauRiver gauge | 1.91 ft | Normal | +0.03 ft | 19 mi |
| Bayou Queue De Tortue @ RicevilleRiver gauge | 4.70 ft | Below flood stage | ±0 | 22 mi |
| Calcasieu River at I-10 at Lake CharlesRiver gauge, Calcasieu River | 2.12 ft | Normal | +0.15 ft | 25 mi |
| North Calcasieu Lake near HackberryLake, North Calcasieu Lake | 4.16 ft | High | +0.41 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 | 11.14 ft | Below flood stage | −0.01 ft | 27 mi |
| Calcasieu River near KinderRiver gauge, Calcasieu River | 1.50 ft | Very low | −0.05 ft | 30 mi |
| Bayou Mallet at Hwy 91 north of IotaRiver gauge, Bayou Mallet | 1.74 ft | Very low | −0.02 ft | 32 mi |
Questions and answers
Is Bayou Lacassine near Lake Arthur higher than last year?
No, it is 0.35 ft lower than on the same day last year, when the reading was 10.40 ft.
What is a normal level for Bayou Lacassine near Lake Arthur in mid-October?
The median for mid-October is 8.98 ft. In 8 years out of 10 the reading falls between 7.62 ft and 10.05 ft, based on 14 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 20, 2026, 04:00 PM CDT, the water level was 10.05 ft. Steady over the last 24 hours.
Is Bayou Lacassine near Lake Arthur rising or falling?
Steady over the last 24 hours. Down 0.33 ft over the last 7 days.
Is the level of Bayou Lacassine near Lake Arthur normal?
Very high for mid-October. Compared with 14 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 | 10.05 ft | 2026-10-20 21:00 | Provisional |
Download
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How to cite
U.S. Geological Survey: Bayou Lacassine near Lake Arthur (usgs:08012470). Accessed October 20, 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