Lower Mississippi-Gulf Water Science Center

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Welcome to the USGS Web page that provides access to water resources information for the Lower Mississippi-Gulf.

 

Real-time data:

Streamflow:   AL || AR || LA || MS || TN

Water quality:   AL || AR || LA || MS || TN

Groundwater levels:    AL || AR || LA || MS || TN

Precipitation:    AL || AR || LA || MS || TN

Water use:    AR || LA || MS || TN

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Hydrologic Data at LMG

Hydrologic Data at LMG

We provide current and historical surface-water, groundwater, water quality, water use, and ecological data in various formats (map, graphical, tabular)

Water Data at LMG

Science at LMG

Science at LMG

The Lower Mississippi Water Science Center collects high-quality hydrologic data and conducts unbiased, scientifically sound research on Alabama, Arkansas, Louisiana, Mississippi, and Tennessee water resources.

Science at LMG

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

NWISWeb

News

Date published: September 7, 2021

Southeast Region (SER) Science Workshop: Identifying Science to Meet Administration Priorities and the Needs of Our Stakeholders

The fourth annual SER Science Workshop, held virtually July 13-16, 2021, addressed four administration priorities – underserved communities, tribal engagement, conserving 30% of our lands and waters by 2030, and tackling the climate crisis. 

Date published: August 26, 2021

Media Alert: Flights Above the Mississippi Alluvial Plain and Adjacent Areas to Continue Aquifer Mapping

Editor:  In the public interest and in accordance with Federal Aviation Administration regulations, the U.S. Geological Survey is announcing this low-level airborne project. Your assistance informing the local communities is appreciated.   

Publications

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Year Published: 2021

Identifying climate-resistant vernal pools: Hydrologic refugia for amphibian reproduction under droughts and climate change

Vernal pools of the northeastern United States provide important breeding habitat for amphibians but may be sensitive to droughts and climate change. These seasonal wetlands typically fill by early spring and dry by mid-to-late summer. Because climate change may produce earlier and stronger growing-season evapotranspiration combined with...

Cartwright, Jennifer M.; Morelli, Toni Lyn; Campbell Grant, Evan H.

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Year Published: 2021

Water resources of Grant Parish, Louisiana

Information concerning the availability, use, and quality of water in Grant Parish, Louisiana, is critical for proper water-supply management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. In 2014, about 5.43 million gallons per...

Murphy, Chid J.; White, Vincent E.
Murphy, C.J., and White, V.E., 2021, Water resources of Grant Parish, Louisiana: U.S. Geological Survey Fact Sheet 2020–3064, 6 p., https://doi.org/10.3133/fs20203064.

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Year Published: 2021

Increasing hydroperiod in a karst-depression wetland based on 165 years of simulated daily water levels

The hydrology of seasonally inundated depression wetlands can be highly sensitive to climatic fluctuations. Hydroperiod—the number of days per year that a wetland is inundated—is often of primary ecological importance in these systems and can vary interannually depending on climate conditions. In this study we re-examined an existing hydrologic...

Cartwright, Jennifer M.; Wolfe, William J.