South Atlantic Water Science Center (SAWSC)

Floods, Droughts, and Hurricanes

Filter Total Items: 25
Date published: February 16, 2017

DroughtWatch for Georgia

Find out about drought conditions in Georgia. Our page offers links to maps and data, as well as Georgia and National drought links, drought resources from other agencies, and pertinent publications.

Date published: February 16, 2017

DroughtWatch for South Carolina

Find out about drought conditions in South Carolina. Our page offers links to maps and data, as well as South Carolina drought links, drought resources from other agencies, and pertinent publications.

Contacts: Noel M Hurley
Date published: February 16, 2017
Status: Active

DroughtWatch for North Carolina

Find out about drought conditions in North Carolina. Our page offers links to maps and data, as well as North Carolina drought links, drought resources from other agencies, and pertinent publications.

Contacts: John C Weaver
Date published: February 8, 2017

Epic September 2009 Flooding - Georgia

Many days of continuous heavy rain in mid-September 2009 resulted in flooding in many parts of Georgia, especially in north Georgia and the Atlanta region. The rains produced streamflows of record proportions. rivers and streams had magnitudes so great that the odds of it happening were less than 0.2 percent in any given year. In other words, there was less than a 1 in 500 chance that parts of...

Contacts: Brian McCallum
Date published: February 5, 2017
Status: Active

Real-Time Precipitation at Sites in Georgia, North and South Carolina

We now have a map and data table-based system to allow you to view real-time precipitation at Georgia and North Carolina water-monitoring sites. The rainfall maps and tables are updated continuously and display data from the last 1-3,6,12,24 hours and 2 and 7 days.

• Go to the Real-Time Precipitation Web site for:   ...

Date published: February 1, 2017
Status: Active

Current and Historical Peak Stage Bar Graphs for North Carolina

Current and Historical Peak Stage Bar Graphs for North Carolina

The Peak Stage Bar Graphs section for North Carolina allows you to compare current stream stage with historic peaks at water-monitoring sites throughout North Carolina. 

Go to the Current and...

Date published: February 1, 2017
Status: Active

Flood-inundation mapping in Tar River Basin, North Carolina

The U.S. Geological Survey (USGS) has created flood-inundation maps for selected streamgage sites in North Carolina. These maps depict the approximate area that would be inundated at selected water levels, ranging from approximately top-of-bank to the maximum observed water level. The inundated areas depicted on these maps are approximate, and accuracy of the maps is a function of the accuracy...

Date published: December 29, 2016
Status: Active

Low-Flow Frequency and Flow Duration Statistics at Continuous-Record Gages in South Carolina

South Carolina State agencies use low-flow statistics for many applications, including determining waste-load allocations for point sources, development of total maximum daily loads (TMDLs) for streams, determining the quantity of water that can be safely withdrawn from a particular stream, and preparing the State Water Plan. This project will monitor the low-flow frequency and duration...

Contacts: Toby D Feaster
Date published: December 27, 2016

Completed and Archived Projects - Floods, Droughts, and Hurricanes, SAWSC

Completed and Archived Projects - Floods, Droughts, and Hurricane, SAWSC

Date published: December 22, 2016

Selected Roadway High-Water Mark Data from Hurricane Joaquin Flooding, October 2015

As part of the statewide response to the flooding, the USGS and S.C. Department of Transportation (SCDOT) conducted a cooperative study to collect high-water mark (HWM) data at 50 selected road crossings.

The HWM elevations and descriptive data have been posted on the USGS Short-Term Network (STN). The STN is a national-...

Date published: December 17, 2016

The 1977 Toccoa Flood, Report of Failure of Kelly Barnes Dam Flood and Findings

The Kelly Barnes Dam, located above the Toccoa Falls Bible College near Toccoa, Georgia, failed in the early morning hours of November 6, 1977. Thirty-nine people died in the resulting flood, which inundated part of the campus including a trailer park. These Web pages make available two historical reports on the flood and an album of photos of the disaster.

► Go to the...

Contacts: Nancy L Barber
Date published: November 2, 2016

Flood Frequency Information

Reliable estimates of the magnitude and frequency of floods are essential for such things as the design of transportation and water-conveyance structures, flood insurance studies, and flood-plain management. Flood-frequency estimates are particularly important in densely populated urban areas. The U.S. Geological Survey (USGS) is using a multistate approach to update methods for determining...