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Fish River near Marlow, AL Water Level Today

Alabama · USGS gauge 0237854520 · live data · Updated Oct 28, 2026

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About this gauge

USGS gauge 0237854520 sits on the Fish River and reads everything draining 121 square miles of the Mobile Bay basin. Its datum sits essentially at sea level NAVD88. Daily flow is on record here from 2021 to 2024, 3 years in all.

Where this gauge sits in the drainage

One gauged site sits upstream of here. The closest is Fish River near Silver Hill AL, reading 55 square miles. This gauge adds the 65 square miles that drain in between.

Normal flows here

The Fish River runs a median of 272 cfs at this gauge across 3 years of record. December is the fullest month at a median 490 cfs, and April the leanest at 178 cfs. The highest daily mean on record is 3,060 cfs in 2021, and the lowest is -140.0 cfs in 2022.

Median flow by month
MonthMedian flowShare of annual median
Jan318 cfs117%
Feb248 cfs91%
Mar182 cfs67%
Apr178 cfs65%
May181 cfs66%
Jun214 cfs79%
Jul279 cfs102%
Aug250 cfs92%
Sep296 cfs108%
Oct377 cfs138%
Nov470 cfs172%
Dec490 cfs180%

Medians from the USGS daily-statistics record, 2021 to 2024. A month at 100% is running at its own long-term median. USGS stopped publishing a daily flow record at this gauge, so these are historical norms, not a baseline for current readings.

Flood stages and record crests

The highest crest on record is 12.2 feet, in September 2020.

Highest crests on record
WhenCrest
September 202012.2 ft
October 20206 ft
August 20214.7 ft
June 20214.4 ft
October 20204.3 ft

Flood categories and crest history from the NOAA National Water Prediction Service, gauge FSMA1. Stages are gage height, not depth. Not for navigation.

Nearby river gauges

Live streamflow and gage height: USGS gauge 0237854520. Percentile context computed against the gauge's period of record. Not for navigation.

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