Lower Mississippi Gulf Water Science Center


Welcome to the USGS Web page that provides access to water resources information for the Lower Mississippi-Gulf. Our multi-state center spans Alabama, Arkansas, Louisiana, Mississippi and Tennessee. This is your direct link to water-resources data, quantity and quality of ground water, quantity and quality of surface water and water use. We hope you enjoy learning about water in our region!

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Current Water Conditions for the Lower Mississippi-Gulf

Current Water Conditions for the Lower Mississippi-Gulf

Data from current sites are relayed to USGS offices via satellite, telephone, and/or radio telemetry and are available for viewing within minutes of arrival.

Retrieve Data

USGS Flood Inundation Mapper

USGS Flood Inundation Mapper

The USGS Flood Inundation Mapping (FIM) Program helps communities protect lives and property by providing tools and information to help them understand their local flood risks and make cost-effective mitigation decisions.


Quick links - Water Conditions for the nation

See current and historical water data for the United States. Here you can find information from floods to droughts for the entire nation.

USGS Streamstats

USGS WaterWatch - Current Streamflow

USGS WaterWatch - Flood

USGS WaterWatch - Drought

USGS WaterWatch - Past Flow/Runoff

USGS WaterWatch - Animation

USGS WaterWatch - Toolkit



USGS measures discharge at the Ohio River at Olmsted Lock and Dam
March 7, 2018

Crews from the U.S. Geological Survey have been in the field for weeks measuring flooding in the Midwest and in the Mississippi River watershed, and more recently flooding and storm tides on the Northern Atlantic coast, as higher temperatures, heavy rain, snowmelt and nor’easters affected numerous states. 

This is an example of a USGS storm-tide sensor
October 7, 2017

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Nate, visit the USGS Hurricane Nate page at https://www.usgs.gov/nate. 

USGS: Science for a changing world
September 21, 2017

This page contains the weekly highlights from the Lower Mississippi-Gulf Water Science Center for the week of 9/112017 - 9/15/2017! Please take a look and see what we have been up to!


Year Published: 2017

Putting flow-ecology relationships into practice: A decision-support system to assess fish community response to water-management scenarios

This paper presents a conceptual framework to operationalize flow–ecology relationships into decision-support systems of practical use to water-resource managers, who are commonly tasked with balancing multiple competing socioeconomic and environmental priorities. We illustrate this framework with a case study, whereby fish community responses to...

Cartwright, Jennifer M.; Caldwell, Casey; Nebiker, Steven; Knight, Rodney
Cartwright, J.; Caldwell, C.; Nebiker, S.; Knight, R., 2017, Putting Flow-Ecology Relationships into Practice: A Decision-Support System to Assess Fish Community Response to Water-Management Scenarios. Water: 9(3), 196

Year Published: 2017

Water resources of the Southern Hills regional aquifer system, southeastern Louisiana

Information concerning the availability, use, and quality of groundwater in the 10 parishes overlying the Southern Hills regional aquifer system of Louisiana (fig. 1) is critical for water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, residents, and others for stewardship of this...

White, Vincent E.
White, V.E., 2017, Water resources of the Southern Hills regional aquifer system, southeastern Louisiana: U.S. Geological Survey Fact Sheet 2017–3010, 6 p., https://doi.org/10.3133/fs20173010.

Year Published: 2017

Water resources of Iberia Parish, Louisiana

IntroductionInformation concerning the availability, use, and quality of water in Iberia Parish, Louisiana, is critical for proper water-resource management. This fact sheet summarizes the availability, past and current use, use trends, and water quality from groundwater and surface-water sources in the parish for water managers, parish residents...

White, Vincent E.; Prakken, Lawrence B.
White, V.E., and Prakken, L.B., 2017, Water resources of Iberia Parish, Louisiana: U.S. Geological Survey Fact Sheet 2016–3100, 6 p., https://doi.org/10.3133/fs20163100.