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Inside Thorofare at Atlantic City (IN MLLW) — water level right now

Atlantic County, New Jersey · NWS gauge ALCN4
Loading the latest reading…
–
current stage (ft)
 
5.9
minor flood stage
 
10
record crest
set 2012-10-29
–
flood status
official NWS category
Official NOAA forecast → USGS data → Full US flood map →

Flood stages at this gauge

Where the water stands right now against the four official thresholds:

minor · 5.9
moderate · 6.9
major · 7.9
Flood stageLevel (ft)What it means
Major flood stage7.9extensive inundation and significant evacuations — a serious event
Moderate flood stage6.9some buildings and roads inundated; evacuations possible
Minor flood stage5.9low-lying roads and fields near the river start to flood

Highest floods on record here

#Crest (ft)Datevs. minor flood stage
1102012-10-29+4.1 above
28.91962-03-06+3 above
37.82018-10-27+1.9 above
47.742016-01-23+1.84 above
57.612025-08-21+1.71 above
67.472025-10-13+1.57 above
77.452009-11-13+1.55 above
87.342021-02-01+1.44 above
97.242022-12-23+1.34 above
107.212016-02-09+1.31 above
117.212018-09-09+1.31 above
127.22019-10-11+1.3 above

Historic crests recorded at this gauge by the National Weather Service — the 12 highest on file.

Where this gauge is

The marker is this gauge; nearby gauges load live and are clickable.

Nearby river gauges

Absecon Channel at Atlantic City Marina (IN MLLW) 2 mi away · loading… New Jersey Atlantic Coast at Atlantic City (ocean front) (IN MLL 2 mi away · loading… Beach Thorofare at Margate (IN MLLW) 3 mi away · loading… Absecon Creek at Absecon (IN MLLW) 5 mi away · loading… Great Egg Harbor Bay at Ocean City (IN MLLW) 8 mi away · loading… Little Egg Inlet at Tuckerton (IN MLLW) 13 mi away · loading…

Gauge details

NWS gauge IDALCN4
USGS site01410560
CountyAtlantic
StateNew Jersey
NWS forecast officeMount Holly
River forecast centerMiddle Atlantic River Forecast Center
Coordinates39.354, -74.457
Time zoneEST5EDT
Turn Around, Don't Drown. Six inches of moving water can knock you off your feet and twelve inches can float a car. Never drive around barricades or into water of unknown depth — most flood deaths happen in vehicles.

Questions about Inside Thorofare at Atlantic City (IN MLLW)

Is Inside Thorofare at Atlantic City (IN MLLW) flooding right now?

The live reading at the top of this page answers that: the gauge is compared against its official NWS flood stages every 15 minutes. Minor flooding at this gauge begins at 5.9 ft. Blue means normal, yellow is action stage, orange minor, red moderate and dark red major flooding.

What is flood stage for Inside Thorofare at Atlantic City (IN MLLW)?

major flood stage 7.9 ft, moderate flood stage 6.9 ft, minor flood stage 5.9 ft. These are official National Weather Service thresholds set specifically for this gauge, not generic values.

What is the record flood at Inside Thorofare at Atlantic City (IN MLLW)?

The highest crest on file at this gauge is 10 ft, reached on 2012-10-29 — that is 4.1 ft above minor flood stage. The full list of the highest crests is in the table on this page.

Where does this data come from?

From the NOAA National Water Prediction Service, the official U.S. river gauge network — a U.S. government work in the public domain. Live stage is refreshed every 15 minutes; flood thresholds and historic crests are refreshed monthly. For life-safety decisions follow NWS Mount Holly and local emergency management.