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Rocky River at Siler City

Highest listed crest 24.90 ftFlood stage 20.0 ft4 crests since 1989

The Rocky River at Siler City crested above flood stage 1 time among the 4 crests the National Weather Service lists from 1989 to 2018. The highest, 24.90 ft on September 17, 2018, was minor flooding, 4.90 feet above flood stage.

The gauge

Highest listed crest
24.90 ft
September 17, 2018; 36,408 cubic feet per second
Flood stage
20.0 ft
Major flooding from 36.0 ft
Crests at major
0
1 above flood stage
Most recent flood crest
September 17, 2018
24.90 ft, minor flooding
Location
Chatham County
North Carolina

Flood stages

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

Flood categories, Rocky River at Siler City
Action stage16.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)20.01Sep 17, 2018Minimal or no property damage, but possibly some public threat
Moderate flood stage32.00—Some inundation of structures and roads near the stream
Major flood stage36.00—Extensive inundation of structures and roads

Every listed crest

4 crests from 1989 to 2018. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Rocky River at Siler City, 1989 to 2018 010203040ft Flood stage 20.0 ftMajor 36.0 ft Mar 10, 1989: 14.91 ft, below flood stage; 16,800 cubic feet per secondApr 25, 1992: 14.39 ft, below flood stage; 15,800 cubic feet per secondSep 17, 2018: 24.90 ft, minor flooding; 36,408 cubic feet per secondOct 11, 2018: 9.06 ft, below flood stage; 9,948 cubic feet per second Highest, 24.90 ft, Sep 17, 2018 199019952000200520102015

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Rocky River at Siler City 1980s: 0 1990s: 0 2000s: 0 2010s: 1 1 1980s1990s2000s2010s
  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, Rocky River at Siler City
1Sep 17, 201824.90+4.90Minor36,408
2Mar 10, 198914.91−5.09Below flood stage16,800
3Apr 25, 199214.39−5.61Below flood stage15,800
4Oct 11, 20189.06−10.94Below flood stage9,948

Other gauges in Chatham County

Flood gauges in Chatham County
Corinth15.020.02 ft, Feb 2, 19730
Bynum11.023.20 ft, Jul 7, 20258
Mount Vernon Springs12.012.62 ft, Sep 17, 20180

Chatham County: every hazard · River floods across the country · North Carolina

NOAA National Water Prediction Service, gauge SLCN7, 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.