South Atlantic Water Science Center (SAWSC)

Floods, Droughts, and Hurricanes

Filter Total Items: 24
Dried up lake in Georgia - DroughtWatch
Date Published: February 16, 2017

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.

September 2009 Flooding. Chattahoochee River near Whitesburg (02338000)
Date Published: February 8, 2017

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...

Real-time precipitation networks for Georgia and North Carolina
Date Published: February 5, 2017

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 hours up to 7-28 days.

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

Peak stage bar graphs for North Carolina
Date Published: February 1, 2017

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...

Tar River Basin Flood-Inundation Mapping Sites, N.C.
Date Published: February 1, 2017

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...

The flood-inundation mapping sites in Georgia.
Date Published: February 1, 2017

The U.S. Geological Survey (USGS) has created flood-inundation maps for selected streamgage sites in Georgia. 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 of the...

Low-Flow Frequency and Flow Duration Statistics at Continuous-Record Gages in South Carolina
Date Published: December 29, 2016

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...

USGS scientist deploying sensor
Date Published: December 22, 2016

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-...

The 1977 Toccoa Flood - Failure of Kelly Barnes Dam, Georgia
Date Published: December 17, 2016

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...

Map of streamgages with 10 or more years of recorded data
Date Published: November 2, 2016

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...

Peachtree Creek, Atlanta, Ga. Comparison of low and high flows at the gaging site.
Date Published: September 27, 2016

Peachtree Creek WaterWatch, Atlanta, GA

Peachtree Creek is a major tributary to the Chattahoochee River in Atlanta, GA. The U.S. Geological Survey (USGS) has been monitoring stream stage and streamflow at or near the Northside Drive gage location since 1958. The Peachtree Creek watershed occupies a large portion of the northeast metro Atlanta area and collects precipitation runoff that...