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Web Portal Changes: The Advanced Hydrologic Prediction Service (AHPS) hosted at https://water.weather.gov will be replaced by the National Water Prediction Service (NWPS), with a target of March 2024. Existing AHPS content and features will be preserved and expanded within NWPS.

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Hydrograph River at a Glance Download
Sewell Mill Creek at GA 120 near Marietta Stage (ft)Flow (kcfs)Observed: 1.07 ft at 6:15PM Sep 27, 2023Observed: 1.06 ft at 6:30PM Sep 27, 2023Observed: 1.06 ft at 6:45PM Sep 27, 2023Observed: 1.06 ft at 7:00PM Sep 27, 2023Observed: 1.06 ft at 7:15PM Sep 27, 2023Observed: 1.06 ft at 7:30PM Sep 27, 2023Observed: 1.06 ft at 7:45PM Sep 27, 2023Observed: 1.06 ft at 8:00PM Sep 27, 2023Observed: 1.06 ft at 8:15PM Sep 27, 2023Observed: 1.06 ft at 8:30PM Sep 27, 2023Observed: 1.06 ft at 8:45PM Sep 27, 2023Observed: 1.06 ft at 9:00PM Sep 27, 2023Observed: 1.06 ft at 9:15PM Sep 27, 2023Observed: 1.06 ft at 9:30PM Sep 27, 2023Observed: 1.06 ft at 9:45PM Sep 27, 2023Observed: 1.06 ft at 9:47PM Sep 27, 2023Observed: 1.06 ft at 10:00PM Sep 27, 2023Observed: 1.06 ft at 10:15PM Sep 27, 2023Observed: 1.06 ft at 10:30PM Sep 27, 2023Observed: 1.06 ft at 10:45PM Sep 27, 2023Observed: 1.06 ft at 11:00PM Sep 27, 2023Observed: 1.06 ft at 11:15PM Sep 27, 2023Observed: 1.06 ft at 11:30PM Sep 27, 2023Observed: 1.06 ft at 11:45PM Sep 27, 2023Observed: 1.06 ft at 12:00AM Sep 28, 2023Observed: 1.06 ft at 12:15AM Sep 28, 2023Observed: 1.06 ft at 2:30AM Sep 28, 2023Observed: 1.06 ft at 2:45AM Sep 28, 2023Observed: 1.06 ft at 3:00AM Sep 28, 2023Observed: 1.06 ft at 3:15AM Sep 28, 2023Observed: 1.06 ft at 3:30AM Sep 28, 2023Observed: 1.06 ft at 3:45AM Sep 28, 2023Observed: 1.06 ft at 4:00AM Sep 28, 2023Observed: 1.06 ft at 4:15AM Sep 28, 2023Observed: 1.06 ft at 4:30AM Sep 28, 2023Observed: 1.06 ft at 4:45AM Sep 28, 2023Observed: 1.06 ft at 5:00AM Sep 28, 2023Observed: 1.06 ft at 5:15AM Sep 28, 2023Observed: 1.06 ft at 5:30AM Sep 28, 2023Observed: 1.06 ft at 5:45AM Sep 28, 2023Observed: 1.06 ft at 6:00AM Sep 28, 2023Observed: 1.06 ft at 6:15AM Sep 28, 2023Observed: 1.06 ft at 6:30AM Sep 28, 2023Observed: 1.06 ft at 6:45AM Sep 28, 2023Observed: 1.06 ft at 7:00AM Sep 28, 2023Observed: 1.06 ft at 7:15AM Sep 28, 2023Observed: 1.06 ft at 8:30AM Sep 28, 2023Observed: 1.06 ft at 8:45AM Sep 28, 2023Observed: 1.06 ft at 9:00AM Sep 28, 2023Observed: 1.06 ft at 9:15AM Sep 28, 2023Observed: 1.06 ft at 9:30AM Sep 28, 2023Observed: 1.06 ft at 9:45AM Sep 28, 2023Observed: 1.06 ft at 10:00AM Sep 28, 2023Observed: 1.06 ft at 10:15AM Sep 28, 2023Observed: 1.07 ft at 10:30AM Sep 28, 2023Observed: 1.06 ft at 10:45AM Sep 28, 2023Observed: 1.06 ft at 11:00AM Sep 28, 2023Observed: 1.06 ft at 11:15AM Sep 28, 2023Observed: 1.06 ft at 11:30AM Sep 28, 2023Observed: 1.06 ft at 11:45AM Sep 28, 2023Observed: 1.06 ft at 12:00PM Sep 28, 2023Observed: 1.07 ft at 12:15PM Sep 28, 2023Observed: 1.06 ft at 12:30PM Sep 28, 2023Observed: 1.06 ft at 12:45PM Sep 28, 2023Observed: 1.06 ft at 1:00PM Sep 28, 2023Observed: 1.06 ft at 1:15PM Sep 28, 2023Observed: 1.06 ft at 1:30PM Sep 28, 2023Observed: 1.06 ft at 1:45PM Sep 28, 2023Observed: 1.07 ft at 2:00PM Sep 28, 2023Observed: 1.06 ft at 2:15PM Sep 28, 2023Observed: 1.06 ft at 2:30PM Sep 28, 2023Observed: 1.07 ft at 2:45PM Sep 28, 2023Observed: 1.06 ft at 3:00PM Sep 28, 2023Observed: 1.06 ft at 3:15PM Sep 28, 2023Observed: 1.07 ft at 3:30PM Sep 28, 2023Observed: 1.06 ft at 3:45PM Sep 28, 2023Observed: 1.07 ft at 4:00PM Sep 28, 2023Observed: 1.06 ft at 4:15PM Sep 28, 2023Observed: 1.07 ft at 4:30PM Sep 28, 2023Observed: 1.06 ft at 4:45PM Sep 28, 2023Observed: 1.06 ft at 5:00PM Sep 28, 2023Observed: 1.06 ft at 5:15PM Sep 28, 2023Observed: 1.06 ft at 5:30PM Sep 28, 2023Observed: 1.06 ft at 5:45PM Sep 28, 2023Observed: 1.07 ft at 6:00PM Sep 28, 2023Observed: 1.06 ft at 6:15PM Sep 28, 2023Observed: 1.07 ft at 6:30PM Sep 28, 2023Observed: 1.08 ft at 6:45PM Sep 28, 2023Observed: 1.08 ft at 7:00PM Sep 28, 2023Observed: 1.09 ft at 7:15PM Sep 28, 2023Observed: 1.09 ft at 7:30PM Sep 28, 2023Observed: 1.09 ft at 7:45PM Sep 28, 2023Observed: 1.09 ft at 8:00PM Sep 28, 2023Observed: 1.09 ft at 8:15PM Sep 28, 2023Observed: 1.09 ft at 8:30PM Sep 28, 2023Observed: 1.09 ft at 8:45PM Sep 28, 2023Observed: 1.08 ft at 9:00PM Sep 28, 2023Observed: 1.08 ft at 9:15PM Sep 28, 2023Observed: 1.09 ft at 9:30PM Sep 28, 2023Highest Observation: 1.1 ft at 9:45PM Sep 28, 2023Highest Observation: 1.1 ft at 9:46PM Sep 28, 2023Observed: 1.09 ft at 10:00PM Sep 28, 2023Observed: 1.09 ft at 10:15PM Sep 28, 2023Observed: 1.09 ft at 10:30PM Sep 28, 2023Observed: 1.09 ft at 10:45PM Sep 28, 2023Observed: 1.09 ft at 11:00PM Sep 28, 2023Observed: 1.09 ft at 11:15PM Sep 28, 2023Observed: 1.08 ft at 11:30PM Sep 28, 2023Observed: 1.09 ft at 11:45PM Sep 28, 2023Observed: 1.09 ft at 12:00AM Sep 29, 2023Observed: 1.08 ft at 12:15AM Sep 29, 2023Observed: 1.08 ft at 12:30AM Sep 29, 2023Observed: 1.08 ft at 12:45AM Sep 29, 2023Observed: 1.07 ft at 1:00AM Sep 29, 2023Observed: 1.07 ft at 1:15AM Sep 29, 2023Observed: 1.06 ft at 1:30AM Sep 29, 2023Observed: 1.06 ft at 1:45AM Sep 29, 2023Observed: 1.06 ft at 2:00AM Sep 29, 2023Observed: 1.06 ft at 2:15AM Sep 29, 2023Observed: 1.06 ft at 2:30AM Sep 29, 2023Observed: 1.06 ft at 2:45AM Sep 29, 2023Observed: 1.06 ft at 3:00AM Sep 29, 2023Observed: 1.06 ft at 3:15AM Sep 29, 2023Observed: 1.06 ft at 3:30AM Sep 29, 2023Observed: 1.06 ft at 3:45AM Sep 29, 2023Observed: 1.06 ft at 4:00AM Sep 29, 2023Observed: 1.05 ft at 4:15AM Sep 29, 2023Observed: 1.05 ft at 4:30AM Sep 29, 2023Observed: 1.06 ft at 4:45AM Sep 29, 2023Observed: 1.05 ft at 5:00AM Sep 29, 2023Observed: 1.06 ft at 5:15AM Sep 29, 2023Observed: 1.05 ft at 5:30AM Sep 29, 2023Observed: 1.05 ft at 5:45AM Sep 29, 2023Observed: 1.05 ft at 6:00AM Sep 29, 2023Observed: 1.06 ft at 6:15AM Sep 29, 2023Observed: 1.05 ft at 6:30AM Sep 29, 2023Observed: 1.06 ft at 6:45AM Sep 29, 2023Observed: 1.05 ft at 7:00AM Sep 29, 2023Observed: 1.06 ft at 7:15AM Sep 29, 2023Observed: 1.05 ft at 7:30AM Sep 29, 2023Observed: 1.06 ft at 7:45AM Sep 29, 2023Observed: 1.05 ft at 8:00AM Sep 29, 2023Observed: 1.05 ft at 8:15AM Sep 29, 2023Observed: 1.06 ft at 8:30AM Sep 29, 2023Observed: 1.06 ft at 8:45AM Sep 29, 2023Observed: 1.06 ft at 9:00AM Sep 29, 2023Observed: 1.06 ft at 9:15AM Sep 29, 2023Observed: 1.06 ft at 9:30AM Sep 29, 2023Observed: 1.06 ft at 9:45AM Sep 29, 2023Observed: 1.06 ft at 10:00AM Sep 29, 2023Observed: 1.06 ft at 10:15AM Sep 29, 2023Observed: 1.06 ft at 10:30AM Sep 29, 2023Observed: 1.06 ft at 10:45AM Sep 29, 2023Observed: 1.06 ft at 11:00AM Sep 29, 2023Observed: 1.06 ft at 11:15AM Sep 29, 2023Observed: 1.06 ft at 11:30AM Sep 29, 2023Observed: 1.06 ft at 11:45AM Sep 29, 2023Observed: 1.06 ft at 12:00PM Sep 29, 2023Observed: 1.06 ft at 12:15PM Sep 29, 2023Observed: 1.06 ft at 12:30PM Sep 29, 2023Observed: 1.06 ft at 12:45PM Sep 29, 2023Observed: 1.06 ft at 1:00PM Sep 29, 2023Observed: 1.06 ft at 1:15PM Sep 29, 2023Observed: 1.07 ft at 1:30PM Sep 29, 2023Observed: 1.06 ft at 1:45PM Sep 29, 2023Observed: 1.06 ft at 2:00PM Sep 29, 2023Observed: 1.06 ft at 2:15PM Sep 29, 2023Observed: 1.06 ft at 2:30PM Sep 29, 2023Observed: 1.06 ft at 2:45PM Sep 29, 2023Observed: 1.06 ft at 3:00PM Sep 29, 2023Observed: 1.07 ft at 3:15PM Sep 29, 2023Observed: 1.06 ft at 3:30PM Sep 29, 2023Observed: 1.06 ft at 3:45PM Sep 29, 2023Observed: 1.06 ft at 4:00PM Sep 29, 2023Observed: 1.06 ft at 4:15PM Sep 29, 2023Observed: 1.06 ft at 4:30PM Sep 29, 2023Observed: 1.06 ft at 4:45PM Sep 29, 2023Observed: 1.06 ft at 5:00PM Sep 29, 2023Observed: 1.06 ft at 5:15PM Sep 29, 2023Observed: 1.06 ft at 5:30PM Sep 29, 2023Observed: 1.06 ft at 5:45PM Sep 29, 2023Observed: 1.07 ft at 6:00PM Sep 29, 2023Observed: 1.07 ft at 6:15PM Sep 29, 2023Observed: 1.06 ft at 6:30PM Sep 29, 2023Observed: 1.06 ft at 6:45PM Sep 29, 2023Observed: 1.07 ft at 7:00PM Sep 29, 2023Observed: 1.06 ft at 7:15PM Sep 29, 2023Observed: 1.06 ft at 7:30PM Sep 29, 2023Observed: 1.06 ft at 7:45PM Sep 29, 2023Observed: 1.06 ft at 8:00PM Sep 29, 2023Observed: 1.06 ft at 8:15PM Sep 29, 2023Observed: 1.06 ft at 8:30PM Sep 29, 2023Observed: 1.06 ft at 8:45PM Sep 29, 2023Observed: 1.06 ft at 9:00PM Sep 29, 2023Observed: 1.06 ft at 9:15PM Sep 29, 2023Observed: 1.06 ft at 9:30PM Sep 29, 2023Observed: 1.06 ft at 9:45PM Sep 29, 2023Observed: 1.06 ft at 10:00PM Sep 29, 2023Observed: 1.06 ft at 10:02PM Sep 29, 2023Observed: 1.06 ft at 10:15PM Sep 29, 2023Observed: 1.06 ft at 10:30PM Sep 29, 2023Observed: 1.06 ft at 10:45PM Sep 29, 2023Observed: 1.06 ft at 11:00PM Sep 29, 2023Observed: 1.05 ft at 11:15PM Sep 29, 2023Observed: 1.06 ft at 11:30PM Sep 29, 2023Observed: 1.05 ft at 11:45PM Sep 29, 2023Observed: 1.05 ft at 12:00AM Sep 30, 2023Observed: 1.05 ft at 12:15AM Sep 30, 2023Observed: 1.05 ft at 12:30AM Sep 30, 2023Observed: 1.05 ft at 12:45AM Sep 30, 2023Observed: 1.05 ft at 1:00AM Sep 30, 2023Observed: 1.05 ft at 1:15AM Sep 30, 2023Observed: 1.05 ft at 1:30AM Sep 30, 2023Observed: 1.05 ft at 1:45AM Sep 30, 2023Observed: 1.05 ft at 2:00AM Sep 30, 2023Observed: 1.05 ft at 2:15AM Sep 30, 2023Observed: 1.05 ft at 2:30AM Sep 30, 2023Observed: 1.05 ft at 2:45AM Sep 30, 2023Observed: 1.05 ft at 3:00AM Sep 30, 2023Observed: 1.05 ft at 3:15AM Sep 30, 2023Observed: 1.05 ft at 3:30AM Sep 30, 2023Observed: 1.05 ft at 3:45AM Sep 30, 2023Observed: 1.05 ft at 4:00AM Sep 30, 2023Observed: 1.05 ft at 4:15AM Sep 30, 2023Observed: 1.05 ft at 4:30AM Sep 30, 2023Observed: 1.05 ft at 4:45AM Sep 30, 2023Observed: 1.05 ft at 5:00AM Sep 30, 2023Observed: 1.05 ft at 5:15AM Sep 30, 2023Observed: 1.05 ft at 5:30AM Sep 30, 2023Observed: 1.05 ft at 5:45AM Sep 30, 2023Observed: 1.05 ft at 6:00AM Sep 30, 2023Observed: 1.05 ft at 6:15AM Sep 30, 2023Observed: 1.05 ft at 6:30AM Sep 30, 2023Observed: 1.05 ft at 6:45AM Sep 30, 2023Observed: 1.05 ft at 7:00AM Sep 30, 2023Observed: 1.05 ft at 7:15AM Sep 30, 2023Observed: 1.05 ft at 7:30AM Sep 30, 2023Observed: 1.05 ft at 7:45AM Sep 30, 2023Observed: 1.05 ft at 8:00AM Sep 30, 2023Observed: 1.05 ft at 8:15AM Sep 30, 2023Observed: 1.05 ft at 8:30AM Sep 30, 2023Observed: 1.05 ft at 8:45AM Sep 30, 2023Observed: 1.05 ft at 9:00AM Sep 30, 2023Observed: 1.05 ft at 9:15AM Sep 30, 2023Observed: 1.06 ft at 9:30AM Sep 30, 2023Observed: 1.05 ft at 9:45AM Sep 30, 2023Observed: 1.06 ft at 10:00AM Sep 30, 2023Observed: 1.05 ft at 10:15AM Sep 30, 2023Observed: 1.05 ft at 10:30AM Sep 30, 2023Observed: 1.05 ft at 10:45AM Sep 30, 2023Observed: 1.06 ft at 11:00AM Sep 30, 2023Observed: 1.06 ft at 11:15AM Sep 30, 2023Observed: 1.06 ft at 11:30AM Sep 30, 2023Observed: 1.06 ft at 11:45AM Sep 30, 2023Observed: 1.06 ft at 12:00PM Sep 30, 2023Observed: 1.06 ft at 12:15PM Sep 30, 2023Observed: 1.06 ft at 12:30PM Sep 30, 2023Observed: 1.06 ft at 12:45PM Sep 30, 2023Observed: 1.06 ft at 1:00PM Sep 30, 2023Observed: 1.06 ft at 1:15PM Sep 30, 2023Observed: 1.06 ft at 1:30PM Sep 30, 2023Observed: 1.06 ft at 1:45PM Sep 30, 2023Observed: 1.06 ft at 2:00PM Sep 30, 2023Observed: 1.06 ft at 2:15PM Sep 30, 2023Observed: 1.06 ft at 2:30PM Sep 30, 2023Observed: 1.06 ft at 2:45PM Sep 30, 2023Observed: 1.06 ft at 3:00PM Sep 30, 2023Observed: 1.06 ft at 3:15PM Sep 30, 2023Observed: 1.06 ft at 3:30PM Sep 30, 2023Observed: 1.06 ft at 3:45PM Sep 30, 2023Observed: 1.06 ft at 4:00PM Sep 30, 2023Observed: 1.06 ft at 4:15PM Sep 30, 2023Observed: 1.06 ft at 4:30PM Sep 30, 2023Observed: 1.05 ft at 4:45PM Sep 30, 2023Observed: 1.06 ft at 5:00PM Sep 30, 2023Observed: 1.06 ft at 5:15PM Sep 30, 2023USGS--Water Resources of the United StatesSMCG1(plotting HGIRG) Graph Created (6:04PM Sep 30, 2023)ObservedLatest observed value: 1.06 ft at 5:15 PM EDT 30-Sep-2023. Flood Stage is 11 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
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 Sewell Mill Creek at GA 120 near Marietta. Only observed stages are available for this point.

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Flood Categories (in feet)
Major Flood Stage: 20
Moderate Flood Stage: 16
Flood Stage: 11
Action Stage: 9
Low Stage (in feet): -9999

Historic Crests
(1) 13.26 ft on 09/21/2009
(2) 12.21 ft on 07/12/2012
(3) 11.32 ft on 09/08/2021 (P)

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.32 ft on 09/08/2021 (P)
(2) 12.21 ft on 07/12/2012
(3) 13.26 ft on 09/21/2009

(P): Preliminary values subject to further review.

Low Water Records
(1) 1.49 ft on 07/06/2008

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:16
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
14 Minor flooding continues to expand further into the residential yards and woodlands upstream and downstream from the gage on Roswell Road. The water will be from 3 to 6 feet deep in the East Cobb Park on the right bank of the creek. A portion of Robinson Road over the creek by Robinson Farms Drive will be flooded with at least 3 feet of water. The athletic field next to the creek off Robinson Road will be flooded with several feet of water.
13 Minor flooding continues to expand further into the residential yards and woodlands upstream and downstream from the gage on Roswell Road. The water will be from 2 to 5 feet deep in the East Cobb Park on the right bank of the creek. A portion of Robinson Road over the creek by Robinson Farms Drive will be flooded with at least 2 feet of water. The athletic field next to the creek off Robinson Road will be flooded with several feet of water.
12 Minor flooding continues of the residential yards and woodlands upstream and downstream from the gage on Roswell Road. The water will be from 1 to 4 feet deep in the East Cobb Park on the right bank of the creek. The portion of Robinson Road over the creek and by Robinson Farms Drive will be flooded with at least one foot of water. The athletic field next to the creek off Robinson Road will be flooded with a few feet of water.
11 Flood stage is reached. Minor flooding of residential yards and woodlands occurs upstream and downstream from the gage on Roswell Road. The water will be up to three feet deep in the lower portions of East Cobb Park on the right bank of the creek. The water level will begin to hit the Robinson Road bridge. The athletic field next to the creek off Robinson Road will begin to flood.
9 Bankfull conditions are reached upstream and downstream from the gage on Roswell Road. Water begins to flow into low areas of East Cobb Park on the right bank of the creek.
About This Location Collapse

Latitude: 33.979167° N, Longitude: 84.452222° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 11 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 29 920 ft 931 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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