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Green Brook at Seeley Mills

Highest listed crest 9.05 ftFlood stage 5.5 ft9 crests since 1979

The Green Brook at Seeley Mills crested above flood stage 7 times among the 9 crests the National Weather Service lists from 1979 to 2023. The highest, 9.05 ft on September 2, 2021, was minor flooding, 3.55 feet above flood stage.

The gauge

Highest listed crest
9.05 ft
September 2, 2021
Flood stage
5.5 ft
No major stage set
Crests at major
0
7 above flood stage
Most recent flood crest
December 18, 2023
5.92 ft, minor flooding
Location
Somerset County
Near New Providence (2.3 mi), Westfield (3.3 mi), Plainfield (3.6 mi)

Flood stages

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

Flood categories, Green Brook at Seeley Mills
Action stage4.52Jun 5, 1992The level at which the NWS or its partners begin to take action
Flood stage (minor)5.57Dec 18, 2023Minimal or no property damage, but possibly some public threat

Every listed crest

9 crests from 1979 to 2023. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Green Brook at Seeley Mills, 1979 to 2023 5678910ft Flood stage 5.5 ft Sep 6, 1979: 6.08 ft, minor floodingJul 7, 1984: 5.11 ft, action stageJun 5, 1992: 5.29 ft, action stageOct 19, 1996: 7.05 ft, minor floodingSep 16, 1999: 8.50 ft, minor floodingMar 13, 2010: 5.58 ft, minor floodingAug 28, 2011: 6.46 ft, minor floodingSep 2, 2021: 9.05 ft, minor floodingDec 18, 2023: 5.92 ft, minor flooding Highest, 9.05 ft, Sep 2, 2021 19801990200020102020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Green Brook at Seeley Mills 1970s: 1 1980s: 0 1990s: 2 2 2000s: 0 2010s: 2 2020s: 2 1970s1980s1990s2000s2010s2020s
  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.
  3. 1 crest measured on an earlier gauge datum is left out: 16.10 ft on Aug 2, 1973.

Highest crests

Highest listed crests, Green Brook at Seeley Mills
1Sep 2, 20219.05+3.55Minor—
2Sep 16, 19998.50+3.00Minor—
3Oct 19, 19967.05+1.55Minor—
4Aug 28, 20116.46+0.96Minor—
5Sep 6, 19796.08+0.58Minor—
6Dec 18, 20235.92+0.42Minor—
7Mar 13, 20105.58+0.08Minor—
8Jun 5, 19925.29−0.21Action—
9Jul 7, 19845.11−0.39Action—

Other gauges in Somerset County

Flood gauges in Somerset County
Burnt Mills11.016.79 ft, Sep 2, 20214
Bound Brook11.020.66 ft, Sep 2, 20210
Burnt Mills9.512.76 ft, Sep 2, 20211
Blackwells Mills9.021.24 ft, Aug 28, 201111
Griggstown10.024.21 ft, Aug 28, 201114
Millstone10.022.45 ft, Sep 2, 20216
Weston11.523.75 ft, Sep 2, 20217
North Branch Village12.321.53 ft, Sep 16, 19990
South Branch8.020.26 ft, Sep 2, 202114
Far Hills6.07.60 ft, Jul 23, 19190
Raritan10.019.52 ft, Sep 2, 20216
Millington8.010.26 ft, Aug 29, 20112
Bound Brook28.042.13 ft, Sep 17, 199913
Manville14.027.66 ft, Sep 2, 202110
North Plainfield7.010.65 ft, Aug 2, 19730
Watchung14.024.50 ft, Aug 2, 19730
Martinsville6.011.47 ft, Sep 2, 20210

Somerset County: every hazard · River floods across the country · New Jersey

NOAA National Water Prediction Service, gauge GBKN4, 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.