Arthur Kill at Perth Amboy (IN MLLW)
Stage at this gauge is reported IN MLLW.
Flood levels
Official flood levels at this gauge: minor flooding begins at 7.2 ft; moderate flooding begins at 8.2 ft; major flooding begins at 9.2 ft.
| Minor flooding | 7.2 ft |
|---|---|
| Moderate flooding | 8.2 ft |
| Major flooding | 9.2 ft |
Highest recorded crests
- 9.4 ft on Dec 23, 2022 (historic crest)
- 9.4 ft on Oct 27, 2018 (historic crest)
- 9.1 ft on Sep 27, 2026 (historic crest)
- 8.8 ft on Jan 13, 2024 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 7.2 ft | (MLLW) MINOR FLOODING. |
|---|---|
| 7.5 ft | (MLLW) COASTAL FLOOD ADVISORY LEVEL. |
| 7.8 ft | (MLLW) Flooding begins along Woodbridge Creek in Woodbridge Township and Perth Amboy, especially around State Street. Flooding begins in Perth Amboy. Flooding begins along the South River in East Brunswick Township, South River and Sayreville. Flooding begins around Victory Plaza in Sayreville (US Route 9 and NJ Route 35). Flooding begins along North Rosewell Avenue in South Amboy. Flooding begins along NJ Route 35 in Laurence Harbor. |
| 8.2 ft | (MLLW) MODERATE FLOODING. At this level, additional roadways in Middlesex County near the Arthur Kill, the lower Raritan River, the Raritan Bay and the tidal tributaries begin to flood. Lives may be at risk when people put themselves in harm's way. Some damage to vulnerable structures may begin to occur. COASTAL FLOOD WARNING LEVEL. |
| 9.2 ft | (MLLW) MAJOR FLOODING. At this level, widespread roadway flooding begins in Middlesex County near the Arthur Kill, the lower Raritan River, the Raritan Bay and the tidal tributaries. Vulnerable homes and businesses may be damaged as water levels rise further above this threshold. Numerous roads become impassable and some neighborhoods may be isolated. The water becomes a danger to anyone who attempts to cross on foot or in a vehicle. |
| 9.4 ft | (Mean Lower Low Water (MLLW)) The level reached on October 27, 2018 and on December 23, 2022. |
Forecast office: NWS Mount Holly · River Forecast Center: Middle Atlantic River Forecast Center.
Arthur Kill at Perth Amboy (IN MLLW) in your pocket
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Nearby stations and gauges
- South Amboy NOAA tide station · 1.3 mi
- Keasbey NOAA tide station · 2.6 mi
- Woodbridge Creek NOAA tide station · 2.8 mi
- Princes Bay NOAA tide station · 3.3 mi
- Cheesequake Creek NOAA tide station · 3.5 mi
- Port Reading NOAA tide station · 3.6 mi