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Storm Mode / Observations

Station and river observations

METAR/SPECI uses the existing AviationWeather.gov bulk cache over the lower 48 and its margin. NWPS retains only gauges in the existing action-stage-or-above observed list; forecast-only gauges can have no observation. Absence never establishes zero wind, low water, or safe conditions.

Water-level gauge ACYN4

unavailable · No observation in the latest cached source list. Retained readings below are historical; an absent gauge may have fallen below action stage or stopped reporting.

Tide gauge (coastal water level) · Atlantic City (ocean front) (IN MLLW) · New Jersey Atlantic Coast · -74.4183, 39.356700000000004. Units ft; datum not supplied.

Source checked 2026-10-17 08:55:04.416Z · current.

Stage in this gauge’s units, not a regional flood depth. Tide/lake gauges remain water levels; datum is not supplied by this feed. Historical observations and the latest forecast keep separate times.

Retained observations: 0; target 24 hours, at most 96 reports per station. Recording began 2026-10-17 06:15:05.234Z; oldest available reading none.

Observed stage and separate NWS forecast at ACYN4 (ft)Dots are retained observations. Lines break for missing fields, long intervals or changed station location or units. 0 recorded discontinuities. Dashed lines, when present, are the separately issued NWS forecast.7.10.9ft10-17 07:00Z10-20 06:00Z
Observed stage and separate NWS forecast · 0 retained observations; 0 discontinuities. Dashed: NWS forecast issued 2026-10-17 07:09:00 UTC; forecast valid times are not observations. Lines join reported values only; missing intervals are not interpolated.

NWS forecast · current

Highest listed forecast: 6.1 ft at 2026-10-19 19:00:00 UTC; issued 2026-10-17 07:09:00 UTC. Minor flooding.

Forecasts are issued routinely year-round.

Gauge thresholds: action not set; minor 6 ft; moderate 7 ft; major 8 ft.

Forecast points (72) · issued 2026-10-17 07:09:00 UTC
Forecast valid time (UTC)Forecast Tide Height
2026-10-17 07:00:00 UTC3 ft
2026-10-17 08:00:00 UTC2.5 ft
2026-10-17 09:00:00 UTC2.1 ft
2026-10-17 10:00:00 UTC1.9 ft
2026-10-17 11:00:00 UTC2.1 ft
2026-10-17 12:00:00 UTC2.5 ft
2026-10-17 13:00:00 UTC3.1 ft
2026-10-17 14:00:00 UTC4 ft
2026-10-17 15:00:00 UTC4.7 ft
2026-10-17 16:00:00 UTC5 ft
2026-10-17 17:00:00 UTC5.2 ft
2026-10-17 18:00:00 UTC4.9 ft
2026-10-17 19:00:00 UTC4.4 ft
2026-10-17 20:00:00 UTC3.7 ft
2026-10-17 21:00:00 UTC3.2 ft
2026-10-17 22:00:00 UTC2.7 ft
2026-10-17 23:00:00 UTC2.5 ft
2026-10-18 00:00:00 UTC2.5 ft
2026-10-18 01:00:00 UTC2.8 ft
2026-10-18 02:00:00 UTC3.3 ft
2026-10-18 03:00:00 UTC3.9 ft
2026-10-18 04:00:00 UTC4.2 ft
2026-10-18 05:00:00 UTC4.4 ft
2026-10-18 06:00:00 UTC4.4 ft
2026-10-18 07:00:00 UTC4.2 ft
2026-10-18 08:00:00 UTC3.8 ft
2026-10-18 09:00:00 UTC3.2 ft
2026-10-18 10:00:00 UTC3 ft
2026-10-18 11:00:00 UTC2.9 ft
2026-10-18 12:00:00 UTC3 ft
2026-10-18 13:00:00 UTC3.4 ft
2026-10-18 14:00:00 UTC4.1 ft
2026-10-18 15:00:00 UTC4.8 ft
2026-10-18 16:00:00 UTC5.3 ft
2026-10-18 17:00:00 UTC5.5 ft
2026-10-18 18:00:00 UTC5.5 ft
2026-10-18 19:00:00 UTC5.2 ft
2026-10-18 20:00:00 UTC4.7 ft
2026-10-18 21:00:00 UTC4.1 ft
2026-10-18 22:00:00 UTC3.5 ft
2026-10-18 23:00:00 UTC3 ft
2026-10-19 00:00:00 UTC2.8 ft
2026-10-19 01:00:00 UTC2.8 ft
2026-10-19 02:00:00 UTC3.2 ft
2026-10-19 03:00:00 UTC3.7 ft
2026-10-19 04:00:00 UTC4.3 ft
2026-10-19 05:00:00 UTC4.6 ft
2026-10-19 06:00:00 UTC4.8 ft
2026-10-19 07:00:00 UTC4.8 ft
2026-10-19 08:00:00 UTC4.5 ft
2026-10-19 09:00:00 UTC4.1 ft
2026-10-19 10:00:00 UTC3.7 ft
2026-10-19 11:00:00 UTC3.3 ft
2026-10-19 12:00:00 UTC3.3 ft
2026-10-19 13:00:00 UTC3.5 ft
2026-10-19 14:00:00 UTC4 ft
2026-10-19 15:00:00 UTC4.6 ft
2026-10-19 16:00:00 UTC5.2 ft
2026-10-19 17:00:00 UTC5.7 ft
2026-10-19 18:00:00 UTC6 ft
2026-10-19 19:00:00 UTC6.1 ft
2026-10-19 20:00:00 UTC5.9 ft
2026-10-19 21:00:00 UTC5.4 ft
2026-10-19 22:00:00 UTC4.8 ft
2026-10-19 23:00:00 UTC4.2 ft
2026-10-20 00:00:00 UTC3.8 ft
2026-10-20 01:00:00 UTC3.6 ft
2026-10-20 02:00:00 UTC3.7 ft
2026-10-20 03:00:00 UTC4.1 ft
2026-10-20 04:00:00 UTC4.7 ft
2026-10-20 05:00:00 UTC5.3 ft
2026-10-20 06:00:00 UTC5.7 ft
NWS gauge impact statements
  • 8.98 ft: (Mean Lower Low Water (MLLW)) The level reached on December 11, 1992.
  • 8.84 ft: (MLLW) The level reached during the hurricane of September 14, 1944.
  • 8.76 ft: (MLLW) The level reached during Post Tropical Cyclone Sandy on October 29, 2012.
  • 8.57 ft: (MLLW) The level reached during Hurricane Gloria on September 27, 1985 and on October 31, 1991.
  • 8.44 ft: (MLLW) The level reached on March 6, 1962 and during Hurricane Belle on August 9, 1976.
  • 8.24 ft: (MLLW) The level reached on November 25, 1950.
  • 8 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 Brigantine, Atantic City, Ventnor and Pleasantville. 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 who attempts to cross on foot or in a vehicle.
  • 7 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 Brigantine, Atlantic City, Ventnor and Pleasantville. 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.
  • 6.8 ft: (MLLW) Flooding begins in Pleasantville.
  • 6.6 ft: (MLLW) Flooding begins around Absecon Inlet in Atlantic City.
  • 6.4 ft: (MLLW) Flooding begins on the north end of Brigantine.
  • 6.3 ft: (MLLW) COASTAL FLOOD ADVISORY LEVEL.
  • 6.2 ft: (MLLW) Flooding begins on the White Horse Pike (US Route 30 - Absecon Boulevard) in Atlantic City, along the back bays in Atlantic City and Ventnor, and on the Black Horse Pike (US Routes 40 and 322) in West Atlantic City.
  • 6 ft: (MLLW) MINOR FLOODING.
  • 5.8 ft: (MLLW) Flooding begins at the most susceptible locations in West Atlantic City.
Observed reports as a table (0)
Observed (UTC)Stage / unitsSource category / water
No retained observations.
Capture times, quality and provenance

Each report keeps its observation time, first capture of this version, and the SHA-256 of the source bulk body. Corrections at the same observation time replace that point and are marked; unrelated bulk-file changes do not freshen a report.

    Only observed gauge records enter this history. Forecast maxima and forecast hydrograph points never become observations. A missing datum or unsupported flow value remains unknown.

    Observation source page · Cached readings as JSON · Official source

    Gauges in the latest cached source

    108 total · source current; checked . Showing 100 on page 1. 0 gauges have suspect readings set aside.

    Source status · Storm Mode