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"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1974-12-02T00:00:00Z",
"stage": 7.98,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1972-12-22T00:00:00Z",
"stage": 7.89,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1972-02-19T00:00:00Z",
"stage": 8.25,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1969-12-26T00:00:00Z",
"stage": 7.95,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1968-11-12T00:00:00Z",
"stage": 8.81,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1966-01-23T00:00:00Z",
"stage": 8.89,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1962-03-06T00:00:00Z",
"stage": 9.39,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1961-04-13T00:00:00Z",
"stage": 8.49,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1960-09-12T00:00:00Z",
"stage": 10.08,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1955-10-14T00:00:00Z",
"stage": 7.99,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1954-08-31T00:00:00Z",
"stage": 7.89,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1953-11-07T00:00:00Z",
"stage": 9.69,
"flow": 0,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1950-11-25T00:00:00Z",
"stage": 8.99,
"flow": -9999,
"preliminary": "O",
"olddatum": false
},
{
"occurredTime": "1944-09-14T00:00:00Z",
"stage": 9.39,
"flow": -9999,
"preliminary": "O",
"olddatum": false
}
]
},
"lowWaters": {
"historic": []
},
"impacts": [
{
"stage": 14.4,
"statement": "(Mean Lower Low Water (MLLW)) The level reached on October 29, 2012 during Post Tropical Cyclone Sandy. This is an estimated value. The tide gauge failed at 13.23 feet MLLW about an hour before the actual high water level occurred. A USGS high water mark about 1,500 feet away from the gauge was used to reconstruct the crest. "
},
{
"stage": 10.08,
"statement": "(MLLW) The level reached during Hurricane Donna on September 12, 1960 and during the northeaster on December 11, 1992. "
},
{
"stage": 9.76,
"statement": "(MLLW) The level reached during Hurricane Irene on August 28, 2011. "
},
{
"stage": 9.69,
"statement": "(MLLW) The level reached on November 7, 1953. "
},
{
"stage": 9.39,
"statement": "(MLLW) The level reached during the hurricane of September 14, 1944 and on March 6, 1962. "
},
{
"stage": 9.03,
"statement": "(MLLW) The level reached on March 13, 2010. "
},
{
"stage": 8.99,
"statement": "(MLLW) The level reached on November 25, 1950. "
},
{
"stage": 8.89,
"statement": "(MLLW) The level reached on January 23, 1966."
},
{
"stage": 8.88,
"statement": "(MLLW) The level reached on December 23, 2022."
},
{
"stage": 8.81,
"statement": "(MLLW) The level reached on November 12, 1968."
},
{
"stage": 8.76,
"statement": "(MLLW) The level reached on October 27, 2018. "
},
{
"stage": 8.7,
"statement": "(MLLW) MAJOR FLOODING. At this level, flooding starts to become severe enough to begin causing structural damage along with widespread flooding of roadways in Middletown Township, Atlantic Highlands, Highlands, Rumson and Sea Bright. 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. "
},
{
"stage": 7.7,
"statement": "(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 Middletown Township, Atlantic Highlands, Highlands, Rumson and Sea Bright. 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. "
},
{
"stage": 7.5,
"statement": "(MLLW) Flooding begins along sections of NJ Route 36 in Middletown Township as water backs up into tidal streams in the community. Flooding begins along the access road to the Gateway National Recreation Area's Sandy Hook Unit. Flooding reaches the intersection of Ocean Avenue (NJ Route 36) and River Street in Sea Bright as well as the 300 and 1400 blocks of Ocean Avenue (NJ Route 36). "
},
{
"stage": 7,
"statement": "(MLLW) COASTAL FLOOD ADVISORY LEVEL. "
},
{
"stage": 6.9,
"statement": "(MLLW) Flooding begins in Middletown Township, Highlands and Rumson. "
},
{
"stage": 6.7,
"statement": "(MLLW) MINOR FLOODING. Flooding begins in Sea Bright. "
}
]
},
"images": {
"probability": {
"weekint": {
"stage": "",
"flow": "",
"volume": ""
},
"entperiod": {
"stage": "",
"flow": "",
"volume": ""
},
"shortrange": ""
},
"hydrograph": {
"default": "https://water.noaa.gov/resources/hydrographs/sdhn4_hg.png",
"floodcat": "https://water.noaa.gov/resources/hydrographs/sdhn4_record.png"
},
"photos": []
},
"dataAttribution": [
{
"abbrev": "NOAA National Ocean Service",
"text": "National Ocean and Coastal Agency",
"title": "NOAA National Ocean Service",
"url": "https://oceanservice.noaa.gov"
}
],
"impactsLowWaters": [],
"normalThreshold": {
"value": 0,
"units": "ft"
},
"hydronotes": [
{
"statement": " \r\nPlease refer to our Coastal Hazard Message for specific information regarding Coastal Flood Watches, Warnings and Advisories. Flood impacts are based on long-term averages. Actual impacts from any tidal flooding event may vary due to factors such as rainfall, wave action, and the number of tide cycles during which there is an onshore flow. \r\nDuring tropical cyclones, please refer \r\nhere for additional storm surge information.",
"effective": "0101",
"expiration": "1231"
},
{
"statement": "\r\nDuring a Tropical Storm or Hurricane Watch or Warning, inundation mapping provided by the \r\nNational Hurricane Center reflects a reasonable worst case scenario. The experimental forecast above is the total water forecast that is expected to occur.",
"effective": "0101",
"expiration": "1231"
}
],
"datums": {
"vertical": {
"value": [
{
"label": "Mean Lower Low Water",
"abbrev": "MLLW*",
"description": "The average of the lower low water height of each tidal day observed over the National Tidal Datum Epoch. For stations with shorter series, comparison of simultaneous observations with a control tide station is made in order to derive the equivalent datum of the National Tidal Datum Epoch.",
"value": 0
},
{
"label": "Mean Low Water",
"abbrev": "MLW",
"description": "The average of all the low water heights observed over the National Tidal Datum Epoch. For stations with shorter series, comparison of simultaneous observations with a control tide station is made in order to derive the equivalent datum of the National Tidal Datum Epoch.",
"value": -0.2
},
{
"label": "Mean Sea Level",
"abbrev": "MSL",
"description": "The arithmetic mean of hourly heights observed over the National Tidal Datum Epoch. Shorter series are specified in the name; e.g. monthly mean sea level and yearly mean sea level.",
"value": -2.58
},
{
"label": "Mean High Water",
"abbrev": "MHW",
"description": "The average of all the high water heights observed over the National Tidal Datum Epoch. For stations with shorter series, comparison of simultaneous observations with a control tide station is made in order to derive the equivalent datum of the National Tidal Datum Epoch.",
"value": -4.9
},
{
"label": "Mean Higher High Water",
"abbrev": "MHHW*",
"description": "The average of the higher high water height of each tidal day observed over the National Tidal Datum Epoch. For stations with shorter series, comparison of simultaneous observations with a control tide station is made in order to derive the equivalent datum of the National Tidal Datum Epoch.",
"value": -5.23
},
{
"label": "Highest Astronomical Tide",
"abbrev": "HAT",
"description": "The elevation of the highest predicted astronomical tide expected to occur at a specific tide station over the National Tidal Datum Epoch.",
"value": -6.63
},
{
"label": "North American Vertical Datum of 1988",
"abbrev": "NAVD88",
"description": "A fixed reference for elevations determined by geodetic leveling. The datum was derived from a general adjustment of the first-order terrestrial leveling nets of the United States, Canada, and Mexico. In the adjustment, only the height of the primary tidal bench mark, referenced to the International Great Lakes Datum of 1985 (IGLD 85) local mean sea level height value, at Father Point, Rimouski, Quebec, Canada was held fixed, thus providing minimum constraint. NAVD 88 and IGLD 85 are identical. However, NAVD 88 bench mark values are given in Helmert orthometric height units while IGLD 85 values are in dynamic heights. See International Great Lakes Datum of 1985, National Geodetic Vertical Datum of 1929, and geopotential difference. NAVD 88 should not be used as Mean Sea Level.",
"value": -2.82
}
]
},
"horizontal": {
"value": []
},
"notes": {
"value": []
}
},
"inundation": {
"enabled": false,
"url": "",
"zeroDatum": null,
"downloads": null,
"siteSpecificInfo": "",
"dataAttribution": []
},
"upstreamLid": "",
"downstreamLid": "",
"inService": {
"enabled": true,
"message": ""
},
"lowThreshold": {
"units": "ft",
"value": -2
},
"forecastReliability": "Forecasts are issued routinely year-round.",
"TruncateObs": "-1",
"TruncateFcst": "3",
"ObservedFloodCategory": "no_flooding",
"ForecastFloodCategory": "no_flooding"
}