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Arthur Kill at Perth Amboy (IN MLLW)

Highest listed crest 9.39 ftFlood stage 7.2 ft18 crests since 2017

The Arthur Kill at Perth Amboy (IN MLLW) crested at major flood stage 2 times among the 18 crests the National Weather Service lists from 2017 to 2026. The highest, 9.39 ft on October 27, 2018, was major flooding, 2.19 feet above flood stage.

The gauge

Highest listed crest
9.39 ft
October 27, 2018
Flood stage
7.2 ft
Major flooding from 9.2 ft
Crests at major
2
49th of 125 gauges in New Jersey
Most recent flood crest
September 27, 2026
9.14 ft, moderate flooding
Location
Middlesex County
Near Perth Amboy (1.2 mi), South Amboy (1.4 mi), Sayreville (4.0 mi)

Flood stages

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

Flood categories, Arthur Kill at Perth Amboy (IN MLLW)
Flood stage (minor)7.20—Minimal or no property damage, but possibly some public threat
Moderate flood stage8.216Sep 27, 2026Some inundation of structures and roads near the stream
Major flood stage9.22Dec 23, 2022Extensive inundation of structures and roads

Every listed crest

18 crests from 2017 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Arthur Kill at Perth Amboy (IN MLLW), 2017 to 2026 77.588.599.5ft Flood stage 7.2 ftMajor 9.2 ft Mar 14, 2017: 8.44 ft, moderate floodingMay 25, 2017: 8.36 ft, moderate floodingMar 3, 2018: 8.54 ft, moderate floodingApr 15, 2018: 8.29 ft, moderate floodingSep 9, 2018: 8.63 ft, moderate floodingOct 27, 2018: 9.39 ft, major floodingNov 16, 2018: 8.54 ft, moderate floodingNov 25, 2018: 8.54 ft, moderate floodingJan 20, 2019: 8.38 ft, moderate floodingMar 21, 2019: 8.26 ft, moderate floodingDec 17, 2020: 8.44 ft, moderate floodingFeb 1, 2021: 8.45 ft, moderate floodingMay 28, 2021: 8.48 ft, moderate floodingApr 18, 2022: 8.43 ft, moderate floodingDec 23, 2022: 9.39 ft, major floodingJan 13, 2024: 8.83 ft, moderate floodingMar 9, 2024: 8.50 ft, moderate floodingSep 27, 2026: 9.14 ft, moderate flooding Highest, 9.39 ft, Oct 27, 2018 20202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Arthur Kill at Perth Amboy (IN MLLW) 2010s: 10 10 2020s: 8 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, Arthur Kill at Perth Amboy (IN MLLW)
1Oct 27, 20189.39+2.19Major—
2Dec 23, 20229.39+2.19Major—
3Sep 27, 20269.14+1.94Moderate—
4Jan 13, 20248.83+1.63Moderate—
5Sep 9, 20188.63+1.43Moderate—
6Mar 3, 20188.54+1.34Moderate—
7Nov 16, 20188.54+1.34Moderate—
8Nov 25, 20188.54+1.34Moderate—
9Mar 9, 20248.50+1.30Moderate—
10May 28, 20218.48+1.28Moderate—
11Feb 1, 20218.45+1.25Moderate—
12Mar 14, 20178.44+1.24Moderate—
13Dec 17, 20208.44+1.24Moderate—
14Apr 18, 20228.43+1.23Moderate—
15Jan 20, 20198.38+1.18Moderate—
16May 25, 20178.36+1.16Moderate—
17Apr 15, 20188.29+1.09Moderate—
18Mar 21, 20198.26+1.06Moderate—

Other gauges in Middlesex County

Flood gauges in Middlesex County
Middlesex9.014.11 ft, Sep 2, 20210
Weston Mills18.020.30 ft, Aug 28, 20110
Spotswood19.022.22 ft, Aug 28, 20111

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

NOAA National Water Prediction Service, gauge PABN4, 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.