U.S. Drought Portal




A summary of drought conditions based on the 
Apalachicola-Chattahoochee-Flint River Basin 
Drought Assessment Webinar of December 4th, 2012

Southeast Climate Consortium (SECC) and the 

National Integrated Drought Information System (NIDIS)

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Precipitation Climatology

Climatology indicates that the ACF Basin could receive 3 to 5 inches of rain in December, with a bit more possible in January.  




2012 ACF Basin Composite Conservation & Flood Storage


The orange line indicates the basin composite and conservation storage forecast and displays a slight downward trend.  The decline in the composite forecast is anticipated to decrease a bit in mid-December compared to previous forecasts.  The Corps is still in drought operations in the ACF basin. 
Corps ACF Composite Plot
To access the Corps' bi-weekly Drought Update for the ACF, click here.

Multivariate ENSO Index


Klaus Wolter's Multivariate ESNO Index indicates that we continue to be in ENSO-neutral conditions. 

There was a rapid expansion of D0 (abnormally dry) and D1 (moderate drought) throughout the Southeast U.S. in the past week.



The 7-day average streamflow for the ACF Basin is well below normal.



Flint River at Bainbridge 28-day hydrograph



The Flint River basin continues to have historical low flows. (http://waterwatch.usgs.gov)


3-Month Mean Daily Streamflow Forecast


The 3-month mean daily streamflow forecast indicates that all 
streamflows are likely to be below normal. 
This graphic was produced by the Southeast River Forecast Center (http://www.srh.noaa.gov/serfc/).



U.S. Seasonal Drought Outlook




The NOAA/Climate Prediction Center expects some drought persistence and some drought improvement for Georgia and Alabama in the next three months (http://www.cpc.ncep.noaa.gov/products/expert_assessment/seasonal_drought.html).

Drought Assessment Webinar Summary
  • Drought conditions have spread througout the entire ACF Basin with drought in the central part of the basin categorized as extreme to exceptional
  • Similarly, streamflows are below average throughout the entire basin, though inflows to West Point are normal because of releases from Lake Lanier
  • Ground water levels in southern Georgia remain at historic low levels
  • Basin inflows are about 1600 cfs below outflows, so reservoir levels have continued to decline, with Lake Lanier approaching the threshold for conservation zone 4
  • The 5-day outlook is for less than 1 inch of precipitation in the northern half of the basin and no rain in the southern half
  • A total of 3 to 6 inches of rainfall is expected for the basin in each month of December and January
  • Streamflow forecasts at 1 and 3 months all suggest that drought conditions will persist or worsen

Acknowledgments and Resources
  • David Zierden, FSU
  • Tony Gotvald, USGS
  • Bailey Crane, USACE
  • Jeff Dobur, SERFC


General drought information




General climate and El Niño information



Streamflow monitoring



Groundwater monitoring



The complete set of briefing slides from this briefing can be found at:http://drought.gov/drought/content/regional-programs/regional-drought-webinars    

Additional information can be found at the Southeast River Forecast Center's Water Resources Outlook:  







Event Date: 
Thu, Dec 6 2012 (All day)
ACF River Basin