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Cobbs Creek at Rainbow Drive near Decatur

Highest listed crest 13.32 ftFlood stage 11.0 ft4 crests since 2015

The Cobbs Creek at Rainbow Drive near Decatur crested above flood stage 4 times among the 4 crests the National Weather Service lists from 2015 to 2024. The highest, 13.32 ft on October 11, 2020, was minor flooding, 2.32 feet above flood stage.

The gauge

Highest listed crest
13.32 ft
October 11, 2020
Flood stage
11.0 ft
Major flooding from 20.0 ft
Crests at major
0
4 above flood stage
Most recent flood crest
September 27, 2024
11.81 ft, minor flooding
Location
DeKalb County
Near Decatur (5.4 mi), Stonecrest (5.8 mi), Clarkston (7.2 mi)

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Cobbs Creek at Rainbow Drive near Decatur
Action stage9.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)11.04Sep 27, 2024Minimal or no property damage, but possibly some public threat
Moderate flood stage17.00—Some inundation of structures and roads near the stream
Major flood stage20.00—Extensive inundation of structures and roads

Every listed crest

4 crests from 2015 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Cobbs Creek at Rainbow Drive near Decatur, 2015 to 2024 101214161820ft Flood stage 11.0 ftMajor 20.0 ft Dec 24, 2015: 12.80 ft, minor floodingOct 11, 2020: 13.32 ft, minor floodingMar 6, 2024: 11.86 ft, minor flooding; 37,242 cubic feet per secondSep 27, 2024: 11.81 ft, minor flooding; 36,936 cubic feet per second Highest, 13.32 ft, Oct 11, 2020 201520202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Cobbs Creek at Rainbow Drive near Decatur 2010s: 1 2020s: 3 3 2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Cobbs Creek at Rainbow Drive near Decatur
1Oct 11, 202013.32+2.32Minor—
2Dec 24, 201512.80+1.80Minor—
3Mar 6, 202411.86+0.86Minor37,242
4Sep 27, 202411.81+0.81Minor36,936

Other gauges in DeKalb County

Flood gauges in DeKalb County
Montreal Road near Tucker8.08.64 ft, Oct 11, 20200
Constitution Road near Atlanta11.014.23 ft, Sep 16, 20040
Johnson Ferry Road near Chamblee16.022.50 ft, Sep 21, 20090
Briarwood Road near Atlanta10.015.81 ft, Sep 27, 20240
Buford Highway at Atlanta13.018.57 ft, Sep 21, 20094
Evans Mill Road near Lithonia8.08.25 ft, Apr 19, 20190
Columbia Drive near Atlanta11.013.42 ft, Dec 24, 20150
Redan Road near Glen Haven12.018.00 ft, Sep 21, 20090
Thompson Mill Road near Lithonia16.017.54 ft, Oct 11, 20200
Casa Drive at Clarkston10.010.25 ft, Sep 27, 20240
Johnson Road near Atlanta13.016.53 ft, Sep 27, 20240
Bouldercrest Road at Atlanta15.016.01 ft, Sep 27, 20240
Flakes Mill Road near Snapfinger13.021.42 ft, Sep 27, 20240
Silver Hill Road near Stone Mountain9.09.94 ft, Oct 11, 20200
GA 124 near Lithonia15.027.47 ft, Sep 21, 20091
Pleasant Hill Road near Lithonia13.025.54 ft, Sep 22, 20091

DeKalb County: every hazard · River floods across the country · Georgia

NOAA National Water Prediction Service, gauge COBG1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.