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Web Portal Changes: In Spring 2024, the Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS) at a repurposed https://water.noaa.gov. A preview of NWPS is available here, where you can see your station hydrograph by replacing SSSSS with the station 5-character id: https://preview.water.noaa.gov/gauges/SSSSS.

Flood Inundation Mapping: Experimental real-time flood Inundation mapping services for 10% of the United States are now available via the NWS Map Viewer. Additional products and geospatial services depicting River Forecast Center and National Water Model forecasts continue to be accessible as described in the StoryMap here.

Please visit https://www.weather.gov/owp/operations for more information.



Hydrograph River at a Glance Download
Hannahatchee Creek at Union Road at Union Stage (ft)Flow (kcfs)Highest Observation: 3.76 ft at 3:15AM Mar 16, 2024Observed: 3.73 ft at 3:30AM Mar 16, 2024Observed: 3.66 ft at 3:45AM Mar 16, 2024Observed: 3.64 ft at 4:00AM Mar 16, 2024Observed: 3.64 ft at 4:15AM Mar 16, 2024Observed: 3.64 ft at 4:30AM Mar 16, 2024Observed: 3.58 ft at 4:45AM Mar 16, 2024Observed: 3.54 ft at 5:00AM Mar 16, 2024Observed: 3.5 ft at 5:15AM Mar 16, 2024Observed: 3.49 ft at 5:30AM Mar 16, 2024Observed: 3.44 ft at 5:45AM Mar 16, 2024Observed: 3.38 ft at 6:00AM Mar 16, 2024Observed: 3.37 ft at 6:15AM Mar 16, 2024Observed: 3.34 ft at 6:30AM Mar 16, 2024Observed: 3.3 ft at 6:45AM Mar 16, 2024Observed: 3.27 ft at 7:00AM Mar 16, 2024Observed: 3.27 ft at 7:15AM Mar 16, 2024Observed: 3.23 ft at 7:30AM Mar 16, 2024Observed: 3.21 ft at 7:45AM Mar 16, 2024Observed: 3.18 ft at 8:00AM Mar 16, 2024Observed: 3.17 ft at 8:15AM Mar 16, 2024Observed: 3.16 ft at 8:30AM Mar 16, 2024Observed: 3.14 ft at 8:45AM Mar 16, 2024Observed: 3.11 ft at 9:00AM Mar 16, 2024Observed: 3.07 ft at 9:15AM Mar 16, 2024Observed: 3.05 ft at 9:30AM Mar 16, 2024Observed: 3.02 ft at 9:45AM Mar 16, 2024Observed: 3.03 ft at 10:00AM Mar 16, 2024Observed: 3 ft at 10:15AM Mar 16, 2024Observed: 2.97 ft at 10:30AM Mar 16, 2024Observed: 2.97 ft at 10:45AM Mar 16, 2024Observed: 2.96 ft at 11:00AM Mar 16, 2024Observed: 2.96 ft at 11:15AM Mar 16, 2024Observed: 2.96 ft at 11:30AM Mar 16, 2024Observed: 2.94 ft at 11:45AM Mar 16, 2024Observed: 2.92 ft at 12:00PM Mar 16, 2024Observed: 2.91 ft at 12:15PM Mar 16, 2024Observed: 2.89 ft at 12:30PM Mar 16, 2024Observed: 2.89 ft at 12:45PM Mar 16, 2024Observed: 2.89 ft at 1:00PM Mar 16, 2024Observed: 2.88 ft at 1:15PM Mar 16, 2024Observed: 2.84 ft at 1:30PM Mar 16, 2024Observed: 2.84 ft at 1:45PM Mar 16, 2024Observed: 2.85 ft at 2:00PM Mar 16, 2024Observed: 2.83 ft at 2:15PM Mar 16, 2024Observed: 2.81 ft at 2:30PM Mar 16, 2024Observed: 2.79 ft at 2:45PM Mar 16, 2024Observed: 2.8 ft at 3:00PM Mar 16, 2024Observed: 2.8 ft at 3:15PM Mar 16, 2024Observed: 2.79 ft at 3:30PM Mar 16, 2024Observed: 2.77 ft at 3:45PM Mar 16, 2024Observed: 2.75 ft at 4:00PM Mar 16, 2024Observed: 2.75 ft at 4:15PM Mar 16, 2024Observed: 2.73 ft at 4:30PM Mar 16, 2024Observed: 2.71 ft at 4:45PM Mar 16, 2024Observed: 2.72 ft at 5:00PM Mar 16, 2024Observed: 2.71 ft at 5:15PM Mar 16, 2024Observed: 2.72 ft at 5:30PM Mar 16, 2024Observed: 2.7 ft at 5:45PM Mar 16, 2024Observed: 2.68 ft at 6:00PM Mar 16, 2024Observed: 2.68 ft at 6:15PM Mar 16, 2024Observed: 2.68 ft at 6:30PM Mar 16, 2024Observed: 2.68 ft at 6:45PM Mar 16, 2024Observed: 2.64 ft at 7:00PM Mar 16, 2024Observed: 2.64 ft at 7:15PM Mar 16, 2024Observed: 2.64 ft at 7:30PM Mar 16, 2024Observed: 2.64 ft at 7:45PM Mar 16, 2024Observed: 2.62 ft at 8:00PM Mar 16, 2024Observed: 2.62 ft at 8:15PM Mar 16, 2024Observed: 2.6 ft at 8:30PM Mar 16, 2024Observed: 2.6 ft at 8:45PM Mar 16, 2024Observed: 2.61 ft at 9:00PM Mar 16, 2024Observed: 2.6 ft at 9:15PM Mar 16, 2024Observed: 2.6 ft at 9:30PM Mar 16, 2024Observed: 2.57 ft at 9:45PM Mar 16, 2024Observed: 2.57 ft at 10:00PM Mar 16, 2024Observed: 2.57 ft at 10:15PM Mar 16, 2024Observed: 2.56 ft at 10:30PM Mar 16, 2024Observed: 2.58 ft at 10:45PM Mar 16, 2024Observed: 2.58 ft at 11:00PM Mar 16, 2024Observed: 2.55 ft at 11:15PM Mar 16, 2024Observed: 2.57 ft at 11:30PM Mar 16, 2024Observed: 2.55 ft at 11:45PM Mar 16, 2024Observed: 2.56 ft at 12:00AM Mar 17, 2024Observed: 2.54 ft at 12:15AM Mar 17, 2024Observed: 2.55 ft at 12:30AM Mar 17, 2024Observed: 2.53 ft at 12:45AM Mar 17, 2024Observed: 2.54 ft at 1:00AM Mar 17, 2024Observed: 2.51 ft at 1:15AM Mar 17, 2024Observed: 2.52 ft at 1:30AM Mar 17, 2024Observed: 2.52 ft at 1:45AM Mar 17, 2024Observed: 2.52 ft at 2:00AM Mar 17, 2024Observed: 2.53 ft at 2:15AM Mar 17, 2024Observed: 2.51 ft at 2:30AM Mar 17, 2024Observed: 2.5 ft at 2:45AM Mar 17, 2024Observed: 2.52 ft at 3:00AM Mar 17, 2024Observed: 2.5 ft at 3:15AM Mar 17, 2024Observed: 2.48 ft at 3:30AM Mar 17, 2024Observed: 2.48 ft at 3:45AM Mar 17, 2024Observed: 2.48 ft at 4:00AM Mar 17, 2024Observed: 2.5 ft at 4:15AM Mar 17, 2024Observed: 2.46 ft at 4:30AM Mar 17, 2024Observed: 2.46 ft at 4:45AM Mar 17, 2024Observed: 2.48 ft at 5:00AM Mar 17, 2024Observed: 2.48 ft at 5:15AM Mar 17, 2024Observed: 2.47 ft at 5:30AM Mar 17, 2024Observed: 2.47 ft at 5:45AM Mar 17, 2024Observed: 2.45 ft at 6:00AM Mar 17, 2024Observed: 2.46 ft at 6:15AM Mar 17, 2024Observed: 2.46 ft at 6:30AM Mar 17, 2024Observed: 2.45 ft at 6:45AM Mar 17, 2024Observed: 2.43 ft at 7:00AM Mar 17, 2024Observed: 2.44 ft at 7:15AM Mar 17, 2024Observed: 2.43 ft at 7:30AM Mar 17, 2024Observed: 2.43 ft at 7:45AM Mar 17, 2024Observed: 2.45 ft at 8:00AM Mar 17, 2024Observed: 2.43 ft at 8:15AM Mar 17, 2024Observed: 2.41 ft at 8:30AM Mar 17, 2024Observed: 2.43 ft at 8:45AM Mar 17, 2024Observed: 2.42 ft at 9:00AM Mar 17, 2024Observed: 2.45 ft at 9:15AM Mar 17, 2024Observed: 2.43 ft at 9:30AM Mar 17, 2024Observed: 2.41 ft at 9:45AM Mar 17, 2024Observed: 2.43 ft at 10:00AM Mar 17, 2024Observed: 2.43 ft at 10:15AM Mar 17, 2024Observed: 2.43 ft at 10:30AM Mar 17, 2024Observed: 2.42 ft at 10:45AM Mar 17, 2024Observed: 2.42 ft at 11:00AM Mar 17, 2024Observed: 2.43 ft at 11:15AM Mar 17, 2024Observed: 2.41 ft at 11:30AM Mar 17, 2024Observed: 2.42 ft at 11:45AM Mar 17, 2024Observed: 2.4 ft at 12:00PM Mar 17, 2024Observed: 2.41 ft at 12:15PM Mar 17, 2024Observed: 2.42 ft at 12:30PM Mar 17, 2024Observed: 2.4 ft at 12:45PM Mar 17, 2024Observed: 2.4 ft at 1:00PM Mar 17, 2024Observed: 2.4 ft at 1:15PM Mar 17, 2024Observed: 2.4 ft at 1:30PM Mar 17, 2024Observed: 2.41 ft at 1:45PM Mar 17, 2024Observed: 2.4 ft at 2:00PM Mar 17, 2024Observed: 2.41 ft at 2:15PM Mar 17, 2024Observed: 2.39 ft at 2:30PM Mar 17, 2024Observed: 2.39 ft at 2:45PM Mar 17, 2024Observed: 2.4 ft at 3:00PM Mar 17, 2024Observed: 2.41 ft at 3:15PM Mar 17, 2024Observed: 2.4 ft at 3:30PM Mar 17, 2024Observed: 2.41 ft at 3:45PM Mar 17, 2024Observed: 2.41 ft at 4:00PM Mar 17, 2024Observed: 2.41 ft at 4:15PM Mar 17, 2024Observed: 2.42 ft at 4:30PM Mar 17, 2024Observed: 2.41 ft at 4:45PM Mar 17, 2024Observed: 2.41 ft at 5:00PM Mar 17, 2024Observed: 2.41 ft at 5:15PM Mar 17, 2024Observed: 2.41 ft at 5:30PM Mar 17, 2024Observed: 2.42 ft at 5:45PM Mar 17, 2024Observed: 2.44 ft at 6:00PM Mar 17, 2024Observed: 2.46 ft at 6:15PM Mar 17, 2024Observed: 2.46 ft at 6:30PM Mar 17, 2024Observed: 2.49 ft at 6:45PM Mar 17, 2024Observed: 2.5 ft at 7:00PM Mar 17, 2024Observed: 2.53 ft at 7:15PM Mar 17, 2024Observed: 2.57 ft at 7:30PM Mar 17, 2024Observed: 2.58 ft at 7:45PM Mar 17, 2024Observed: 2.62 ft at 8:00PM Mar 17, 2024Observed: 2.65 ft at 8:15PM Mar 17, 2024Observed: 2.69 ft at 8:30PM Mar 17, 2024Observed: 2.73 ft at 8:45PM Mar 17, 2024Observed: 2.79 ft at 9:00PM Mar 17, 2024Observed: 2.86 ft at 9:15PM Mar 17, 2024Observed: 2.93 ft at 9:30PM Mar 17, 2024Observed: 2.99 ft at 9:45PM Mar 17, 2024Observed: 3.03 ft at 10:00PM Mar 17, 2024Observed: 3.08 ft at 10:15PM Mar 17, 2024Observed: 3.12 ft at 10:30PM Mar 17, 2024Observed: 3.16 ft at 10:45PM Mar 17, 2024Observed: 3.2 ft at 11:00PM Mar 17, 2024Observed: 3.25 ft at 11:15PM Mar 17, 2024Observed: 3.3 ft at 11:30PM Mar 17, 2024Observed: 3.36 ft at 11:45PM Mar 17, 2024Observed: 3.4 ft at 12:00AM Mar 18, 2024Observed: 3.5 ft at 12:15AM Mar 18, 2024Observed: 3.58 ft at 12:30AM Mar 18, 2024Observed: 3.64 ft at 12:45AM Mar 18, 2024Observed: 3.68 ft at 1:00AM Mar 18, 2024Observed: 3.71 ft at 1:15AM Mar 18, 2024Observed: 3.72 ft at 1:30AM Mar 18, 2024Observed: 3.72 ft at 1:45AM Mar 18, 2024Observed: 3.72 ft at 2:00AM Mar 18, 2024Observed: 3.72 ft at 2:15AM Mar 18, 2024Observed: 3.72 ft at 2:30AM Mar 18, 2024Observed: 3.72 ft at 2:45AM Mar 18, 2024Observed: 3.69 ft at 3:00AM Mar 18, 2024Observed: 3.67 ft at 3:15AM Mar 18, 2024Observed: 3.64 ft at 3:30AM Mar 18, 2024Observed: 3.61 ft at 3:45AM Mar 18, 2024Observed: 3.59 ft at 4:00AM Mar 18, 2024Observed: 3.56 ft at 4:15AM Mar 18, 2024Observed: 3.52 ft at 4:30AM Mar 18, 2024Observed: 3.49 ft at 4:45AM Mar 18, 2024Observed: 3.46 ft at 5:00AM Mar 18, 2024Observed: 3.44 ft at 5:15AM Mar 18, 2024Observed: 3.42 ft at 5:30AM Mar 18, 2024Observed: 3.39 ft at 5:45AM Mar 18, 2024Observed: 3.35 ft at 6:00AM Mar 18, 2024Observed: 3.33 ft at 6:15AM Mar 18, 2024Observed: 3.29 ft at 6:30AM Mar 18, 2024Observed: 3.27 ft at 6:45AM Mar 18, 2024Observed: 3.25 ft at 7:00AM Mar 18, 2024Observed: 3.23 ft at 7:15AM Mar 18, 2024Observed: 3.2 ft at 7:30AM Mar 18, 2024Observed: 3.16 ft at 7:45AM Mar 18, 2024Observed: 3.15 ft at 8:00AM Mar 18, 2024Observed: 3.12 ft at 8:15AM Mar 18, 2024Observed: 3.09 ft at 8:30AM Mar 18, 2024Observed: 3.07 ft at 8:45AM Mar 18, 2024Observed: 3.06 ft at 9:00AM Mar 18, 2024Observed: 3.05 ft at 9:15AM Mar 18, 2024Observed: 3.02 ft at 9:30AM Mar 18, 2024Observed: 2.99 ft at 9:45AM Mar 18, 2024Observed: 2.99 ft at 10:00AM Mar 18, 2024Observed: 2.94 ft at 10:15AM Mar 18, 2024Observed: 2.93 ft at 10:30AM Mar 18, 2024Observed: 2.93 ft at 10:45AM Mar 18, 2024Observed: 2.91 ft at 11:00AM Mar 18, 2024Observed: 2.89 ft at 11:15AM Mar 18, 2024Observed: 2.88 ft at 11:30AM Mar 18, 2024Observed: 2.86 ft at 11:45AM Mar 18, 2024Observed: 2.84 ft at 12:00PM Mar 18, 2024Observed: 2.85 ft at 12:15PM Mar 18, 2024Observed: 2.82 ft at 12:30PM Mar 18, 2024Observed: 2.83 ft at 12:45PM Mar 18, 2024Observed: 2.82 ft at 1:00PM Mar 18, 2024Observed: 2.8 ft at 1:15PM Mar 18, 2024Observed: 2.81 ft at 1:30PM Mar 18, 2024Observed: 2.8 ft at 1:45PM Mar 18, 2024Observed: 2.77 ft at 2:00PM Mar 18, 2024Observed: 2.77 ft at 2:15PM Mar 18, 2024Observed: 2.76 ft at 2:30PM Mar 18, 2024Observed: 2.74 ft at 2:45PM Mar 18, 2024Observed: 2.73 ft at 3:00PM Mar 18, 2024Observed: 2.71 ft at 3:15PM Mar 18, 2024Observed: 2.7 ft at 3:30PM Mar 18, 2024Observed: 2.69 ft at 3:45PM Mar 18, 2024Observed: 2.71 ft at 4:00PM Mar 18, 2024Observed: 2.67 ft at 4:15PM Mar 18, 2024Observed: 2.69 ft at 4:30PM Mar 18, 2024Observed: 2.66 ft at 4:45PM Mar 18, 2024Observed: 2.66 ft at 5:00PM Mar 18, 2024Observed: 2.67 ft at 5:15PM Mar 18, 2024Observed: 2.64 ft at 5:30PM Mar 18, 2024Observed: 2.64 ft at 5:45PM Mar 18, 2024Observed: 2.65 ft at 6:00PM Mar 18, 2024Observed: 2.63 ft at 6:15PM Mar 18, 2024Observed: 2.63 ft at 6:30PM Mar 18, 2024Observed: 2.63 ft at 6:45PM Mar 18, 2024Observed: 2.63 ft at 7:00PM Mar 18, 2024Observed: 2.61 ft at 7:15PM Mar 18, 2024Observed: 2.6 ft at 7:30PM Mar 18, 2024Observed: 2.57 ft at 7:45PM Mar 18, 2024Observed: 2.58 ft at 8:00PM Mar 18, 2024Observed: 2.58 ft at 8:15PM Mar 18, 2024Observed: 2.6 ft at 8:30PM Mar 18, 2024Observed: 2.57 ft at 8:45PM Mar 18, 2024Observed: 2.56 ft at 9:00PM Mar 18, 2024Observed: 2.57 ft at 9:15PM Mar 18, 2024Observed: 2.55 ft at 9:30PM Mar 18, 2024Observed: 2.54 ft at 9:45PM Mar 18, 2024Observed: 2.54 ft at 10:00PM Mar 18, 2024Observed: 2.54 ft at 10:15PM Mar 18, 2024Observed: 2.53 ft at 10:30PM Mar 18, 2024Observed: 2.53 ft at 10:45PM Mar 18, 2024Observed: 2.51 ft at 11:00PM Mar 18, 2024Observed: 2.51 ft at 11:15PM Mar 18, 2024Observed: 2.5 ft at 11:30PM Mar 18, 2024Observed: 2.48 ft at 11:45PM Mar 18, 2024Observed: 2.5 ft at 12:00AM Mar 19, 2024Observed: 2.5 ft at 12:15AM Mar 19, 2024Observed: 2.48 ft at 12:30AM Mar 19, 2024Observed: 2.47 ft at 12:45AM Mar 19, 2024Observed: 2.47 ft at 1:00AM Mar 19, 2024Observed: 2.47 ft at 1:15AM Mar 19, 2024Observed: 2.46 ft at 1:30AM Mar 19, 2024Observed: 2.47 ft at 1:45AM Mar 19, 2024USGS--Water Resources of the United StatesUNIG1(plotting HGIRG) Graph Created (3:04AM Mar 19, 2024)ObservedLatest observed value: 2.47 ft at 1:45 AM ADT 19-Mar-2024. Flood Stage is 16 ft
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About this graph
Tabular Data (UTC)
Tabular Data (AST)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Automated gauge readings are now available, courtesy of the USGS.

NOTE: Forecasts are not available for the Hannahatchee Creek at Union Road at Union. Only observed stages are available for this point.

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Flood Categories (in feet)
Major Flood Stage: 26
Moderate Flood Stage: 21
Flood Stage: 16
Action Stage: 14
Low Stage (in feet): -9999

Historic Crests
(1) 15.47 ft on 12/25/2015
(2) 13.41 ft on 12/11/2008
(3) 12.56 ft on 12/15/2009

(P): Preliminary values subject to further review.

Recent Crests
(1) 15.47 ft on 12/25/2015
(2) 12.56 ft on 12/15/2009
(3) 13.41 ft on 12/11/2008

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:14
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
26 Major flooding begins. Widespread inundation flooding expands further into the woodlands and fields upstream and downstream from the gage on Union Road. The water is close to topping the bridge as it acts like a dam. Erosion may occur to the sides of the bridge and county officials will likely have it closed. The flood waters will be from 1 to 3 feet deep over the road.
23 Significant flooding continues to expand further into the woodlands and fields upstream and downstream from the gage on Union Road. The water level hits the bridge causing it to act like a dam. Erosion may occur to the sides of the bridge and county officials will likely have it closed. The flood waters will begin to flow over the road just north of the bridge.
21 Moderate flooding begins. Significant flooding expands further into the woodlands and fields upstream and downstream from the gage on Union Road. The water level reaches the bottom of the bridge and county officials may close the bridge.
20 Minor flooding expands further into the woodlands and fields upstream and downstream from the gage on Union Road.
18 Minor flooding continues in the woodlands and fields upstream and downstream from the gage on Union Road.
16 Flood stage is reached. Minor flooding of woodlands and fields begin upstream and downstream from the gage on Union Road.
14 Bankfull conditions are reached upstream and downstream from the gage on Union Road. The marsh land surrounding the creek begins to flood.
About This Location Collapse

Latitude: 32.152778° N, Longitude: 84.905833° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 16 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 220 ft 236 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Peachtree City/Atlanta Weather Forecast Office
4 Falcon Drive
Peachtree City, GA 30269
(770) 486-1133
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Page last modified: 2-Nov-2020 7:30 PM
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