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Rain & rivers

Rain expected and rain that fell, and the gauges at action stage or above in New Jersey, each with NWS’s forecast. Flood warnings are the Live tracker’s.

Observed gauges / Forecast gauges / NWS warnings: feeds current

Observed gauges: Feed current; checked .

Forecast gauges: Feed current; checked .

NWS warnings: Feed current; checked .

Checked means retrieved, not newly issued. Each graphic retains its issue, observation, initialization or valid time. Site publishing status is separate.

Minor flooding

Great Egg Harbor Bay at Ocean City (IN MLLW), NJ

Gauge
Tide gauge (coastal water level) · ONCN4 · NWS PHI
Observed
Not flooding now: observed below action stage (where officials start to act), or not reporting. Listed for its forecast.
Forecast
Forecast issued · crest 5.5 ft at : minor flooding
Stages
Flood (minor) 5.3 ft · Moderate 6.3 ft · Major 7.3 ft
Forecasts
Forecasts are issued routinely year-round.

Forecast hydrograph

Forecast stage at Ocean City (IN MLLW), in ftNWS forecast for Ocean City (IN MLLW), issued 16 Oct 19:44Z: a crest of 5.5 ft at 19 Oct 18:00Z. Flood stage is 5.3 ft. No recent observation at action stage or above is held.0246817 Oct 00Z17 Oct 12Z18 Oct 00Z18 Oct 12Z19 Oct 00Z19 Oct 12ZFlood (minor) 5.3 ftModerate 6.3 ftNowUTCft
NWS forecast, issued : the line is the forecast stage, each dot one of NWS’s points; the ringed dot is the latest observation, when one at action stage or above is held. Earlier observations are not held here, so no observed line is drawn. Higher stages not drawn: major 7.3 ft. Minor flooding at its worst, observed or forecast. Data: NOAA/NWPS.
The forecast points as a table
TimeStage
3.6 ft
3 ft
2.3 ft
1.9 ft
1.5 ft
1.6 ft
2 ft
2.4 ft
2.9 ft
3.1 ft
3.3 ft
3 ft
2.5 ft
2.1 ft
1.8 ft
1.5 ft
1.5 ft
1.6 ft
2.2 ft
2.7 ft
3.4 ft
4 ft
4.3 ft
4.3 ft
4 ft
3.4 ft
3 ft
2.4 ft
2.2 ft
1.9 ft
2 ft
2.5 ft
2.9 ft
3.4 ft
3.8 ft
3.9 ft
3.7 ft
3.3 ft
2.9 ft
2.6 ft
2.4 ft
2.4 ft
2.5 ft
3 ft
3.5 ft
4.1 ft
4.7 ft
4.9 ft
5 ft
4.6 ft
4.1 ft
3.6 ft
3.2 ft
2.8 ft
2.6 ft
2.7 ft
3.2 ft
3.6 ft
4.2 ft
4.5 ft
4.6 ft
4.4 ft
4.2 ft
3.7 ft
3.4 ft
3.2 ft
3.2 ft
3.3 ft
3.8 ft
4.3 ft
4.9 ft
5.5 ft

What NWS lists at this gauge

  • 5.3 ft: (MLLW) MINOR FLOODING.

NWS’s statements for this gauge’s water at each stage, up to the highest observed or forecast. A gauge does not say whether a particular road or neighbourhood near it floods. Read .

NWPS’s page for ONCN4 On the Live tracker’s map River flood warnings in New Jersey

Rain and rivers in New Jersey

  • Expected rain: 0.5 in or more at its highest in New Jersey, in WPC’s forecast for the 24 hours to . An amount for the area its contour covers, not a total for any one street.
  • Rain that fell: 1 to 1.5 in at its highest in New Jersey, in the 24 hours to , by MRMS’s radar estimate over a grid about 5 km across: a measurement of the past, not corrected to rain gauges.
  • Rivers: 4 gauges in flood in New Jersey, by NWS’s lists read . Minor flooding New Jersey Atlantic Coast at Atlantic City (ocean front) (IN MLLW), NJ. Not flooding now: observed below action stage (where officials start to act), or not reporting. Listed for its forecast. Forecast issued · crest 6.4 ft at : minor flooding. And 3 more. A gauge measures its river at that spot, not whether a road or a neighbourhood floods.

Three sources, each its own window. None is a chance of flash flooding, which is WPC’s outlook above; a flash flood is a warning’s. Gauges in the Live tracker

On the Briefing’s map

River, coastal and lake gauges in New Jersey

Four gauges in flood in New Jersey, observed or forecast. Choose one for its forecast hydrograph.

Minor flooding 4

  1. Forecast: minor flooding New Jersey Atlantic Coast at Atlantic City (ocean front) (IN MLLW), NJNot flooding now: observed below action stage (where officials start to act), or not reporting. Listed for its forecast.Forecast issued · crest 6.4 ft at : minor flooding
  2. Forecast: minor flooding Barnegat Bay at Barnegat Light (IN MLLW), NJNot flooding now: observed below action stage (where officials start to act), or not reporting. Listed for its forecast.Forecast issued · crest 3.7 ft at : minor flooding
  3. Forecast: minor flooding Cape May Harbor at Cape May Harbor (IN MLLW), NJNot flooding now: observed below action stage (where officials start to act), or not reporting. Listed for its forecast.Forecast issued · crest 6.5 ft at : minor flooding
  4. Forecast: minor flooding Great Egg Harbor Bay at Ocean City (IN MLLW), NJNot flooding now: observed below action stage (where officials start to act), or not reporting. Listed for its forecast.Forecast issued · crest 5.5 ft at : minor flooding
Action stage, not flooding 1

Action stage is the level at which NWS and local officials begin to act; the water is not yet at flood stage.

  1. Observed: action stage Rockaway River at Boonton, NJObserved 305.53 ft at : action stage

A gauge measures its water at that one place. Flash flooding, which comes in hours from heavy rain, is in the warnings as Flash Flood Warnings; a river can be in flood with no rain falling.

Gauges observed checked · Data: NOAA/NWS

Gauges forecast checked · Data: NOAA/NWS

Gauge impacts and forecasts checked · Data: NOAA/NWPS

New Jersey flash-flood briefing

Not an official warning service. Warnings and watches are the National Weather Service’s, outlooks and reports the Storm Prediction Center’s and the Weather Prediction Center’s (Data: NOAA/NWS, NOAA/SPC, NOAA/WPC). When a warning is issued for you, act on it, and use weather.gov or a NOAA Weather Radio for where you are.