Raritan Bay at Keansburg (IN MLLW)
Stage at this gauge is reported IN MLLW.
Flood levels
Official flood levels at this gauge: minor flooding begins at 7.0 ft; moderate flooding begins at 8.0 ft; major flooding begins at 9.0 ft.
| Minor flooding | 7.0 ft |
|---|---|
| Moderate flooding | 8.0 ft |
| Major flooding | 9.0 ft |
Highest recorded crests
- 16.7 ft on Oct 29, 2012 (historic crest)
- 10.8 ft on Nov 25, 1950 (historic crest)
- 10.1 ft on Aug 28, 2011 (historic crest)
- 9.9 ft on Mar 13, 2010 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 7.0 ft | (MLLW) MINOR FLOODING. |
|---|---|
| 7.2 ft | (MLLW) Flooding begins in Aberdeen, Keyport (along West Front Street), Union Beach, Keansburg and Middletown Township. |
| 7.3 ft | (MLLW) COASTAL FLOOD ADVISORY LEVEL. |
| 7.8 ft | (MLLW) Flooding begins along sections of NJ Route 35 in Keyport and Hazlet as water backs up into tidal streams in the communities. Flooding begins along sections of NJ Route 36 in Keyport, Hazlet and Middletown Township as water backs up into tidal streams in the communities. |
| 8.0 ft | (MLLW) MODERATE FLOODING. At this level, widespread flooding of roadways begins due to high water and/or wave action with many roads becoming impassable in Aberdeen, Keyport, Union Beach, Keansburg and Middletown Township. 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. |
| 9.0 ft | (MLLW) MAJOR FLOODING. At this level, flooding starts to become severe enough to begin causing structural damage along with widespread flooding of roadways in Aberdeen, Keyport, Union Beach, Keansburg and Middletown Township. Vulnerable homes and businesses may be severely damaged or destroyed as water levels rise further above this threshold. Numerous roads become impassable and some neighborhoods may be isolated. The flood waters become a danger to anyone attempting to cross on foot or in a vehicle. |
| 9.2 ft | (MLLW) The level reached on October 27, 2018. |
| 9.9 ft | (MLLW) The level reached on March 13, 2010. |
| 10.1 ft | (MLLW) The level reached on August 28, 2011 during Hurricane Irene. |
| 10.8 ft | (MLLW) The level reached on November 25, 1950. |
| 16.7 ft | (Mean Lower Low Water (MLLW)) The level reached on October 29, 2012 during Post Tropical Cyclone Sandy. |
Forecast office: NWS Mount Holly · River Forecast Center: Middle Atlantic River Forecast Center.
A NOAA tide station shares this spot: Waackaack Creek, with tide predictions and official flood levels.
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Nearby stations and gauges
- Waackaack Creek NOAA tide station · 0.2 mi
- Keyport NOAA tide station · 2.7 mi
- Matawan Creek NOAA tide station · 3.9 mi
- Princes Bay NOAA tide station · 5.1 mi
- Deep Run at Old Bridge NWS gauge · 5.8 mi
- Great Kills Harbor at Great Kills (IN MLLW) NWS gauge · 6.3 mi