Alert archive / New Jersey / River Flood Warnings in 2023

River Flood Warning 55, NWS Philadelphia/Mount Holly

December 18, 2023Middlesex County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 18, 2023, 6:43 AM EST for Middlesex County, Somerset County, New Jersey. It took effect at Dec 18, 2023, 10:03 AM EST. It was in force for 33 hr.

The area

The outline as issued.

The facts

Issued: Dec 18, 2023, 6:43 AM EST (11:43 UTC)
In effect from: Dec 18, 2023, 10:03 AM EST
Expired: Dec 19, 2023, 6:36 PM EST
In force: 33 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Moderate

Counties Middlesex County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 65 km from the middle of the area, began a volume at 11:47 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Raritan River at Bound Brook (BDKN4). The gauge peaked at 33.71 ft at Dec 18, 2023, 10:00 PM EST.

Action stage: 26 ft
Minor stage: 28 ft
Moderate stage: 30 ft
Major stage: 33 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01403060, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

723 
WGUS41 KPHI 181143
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
643 AM EST Mon Dec 18 2023

...The National Weather Service in Mount Holly NJ has issued a Flood 
Warning for the following rivers in New Jersey...

  Raritan River At Bound Brook affecting Middlesex and Somerset 
  Counties.



For the Raritan River...including Bound Brook...Moderate flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Additional information is available at www.weather.gov/phi.

The next statement will be issued this evening at 645 PM EST.

&&

NJC023-035-182345-
/O.NEW.KPHI.FL.W.0055.231218T1718Z-231219T1657Z/
/BDKN4.2.ER.231218T1718Z.231219T0000Z.231219T1056Z.NO/
643 AM EST Mon Dec 18 2023

...FLOOD WARNING IN EFFECT FROM THIS AFTERNOON TO LATE TOMORROW 
MORNING...

* WHAT...Moderate flooding is forecast.

* WHERE...Raritan River at Bound Brook.

* WHEN...From this afternoon to late tomorrow morning.

* IMPACTS...At 28.0 feet, Backyard and low areas are protected by 
  levees and the flood wall. Without the levees or if there is a 
  breach in the levees, minor flooding will occur.
  At 30.0 feet, Main Street is protected by flap valves/sluice 
  gates. This level triggers the gate closures to protect Main 
  Street.

* ADDITIONAL DETAILS...
  - At 6:15 AM EST Monday the stage was 25.8 feet.
  - Forecast...The river is expected to rise above flood stage
    this afternoon to a crest of 30.5 feet this evening. It will
    then fall below flood stage late tonight.
  - Flood stage is 28.0 feet.
  - Flood History...This crest compares to a previous crest of
    30.5 feet on 08/24/2021.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (7 am)        Crest
Location        Stg   Stg Day/Time    Tue  Wed        Stg Time Date

Raritan River
Bound Brook     28.0  25.8 Mon 6 am   27.7 22.7       30.5 7pm 12/18


&&

LAT...LON 4057 7456 4056 7448 4049 7438 4045 7442
      4051 7452 4052 7456


$$

Kruzdlo

6 follow-up statements

583 
WGUS81 KPHI 181310
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
810 AM EST Mon Dec 18 2023

...The Flood Warning is extended for the following rivers in New 
Jersey...

  Raritan River At Bound Brook affecting Somerset and Middlesex 
  Counties.



For the Raritan River...including Stanton, Raritan, Manville, Bound 
Brook...Moderate flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Stay tuned to further developments by listening to your local radio, 
television, or NOAA Weather Radio for further information.

Additional information is available at www.weather.gov/phi.

The next statement will be issued this evening at 815 PM EST.

&&

NJC023-035-190115-
/O.EXT.KPHI.FL.W.0055.231218T1503Z-231219T1851Z/
/BDKN4.2.ER.231218T1503Z.231219T0000Z.231219T1251Z.NO/
810 AM EST Mon Dec 18 2023

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY TOMORROW AFTERNOON...

* WHAT...Moderate flooding is forecast.

* WHERE...Raritan River at Bound Brook.

* WHEN...Until early tomorrow afternoon.

* IMPACTS...At 28.0 feet, Backyard and low areas are protected by 
  levees and the flood wall. Without the levees or if there is a 
  breach in the levees, minor flooding will occur.
  At 30.0 feet, Main Street is protected by flap valves/sluice 
  gates. This level triggers the gate closures to protect Main 
  Street.

* ADDITIONAL DETAILS...
  - At 7:15 AM EST Monday the stage was 26.4 feet.
  - Forecast...The river is expected to rise above flood stage
    late this morning to a crest of 31.6 feet this evening. It
    will then fall below flood stage tomorrow morning.
  - Flood stage is 28.0 feet.
  - Flood History...This crest compares to a previous crest of
    31.7 feet on 12/21/1973.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (7 am)        Crest
Location        Stg   Stg Day/Time    Tue  Wed        Stg Time Date

Raritan River
Bound Brook     28.0  26.4 Mon 7 am   28.2 23.4       31.6 7pm 12/18


&&

LAT...LON 4057 7456 4056 7448 4049 7438 4045 7442
      4051 7452 4052 7456


$$

SFJ

056 
WGUS41 KPHI 182250
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
550 PM EST Mon Dec 18 2023

...Forecast flooding changed from Moderate to Major severity and 
increased in duration for the following rivers in New Jersey...

  Raritan River At Bound Brook affecting Somerset and Middlesex 
  Counties.



For the Raritan River...including Bound Brook...Major flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Additional information is available at www.weather.gov/phi.

The next statement will be issued Tuesday morning at 600 AM EST.

&&

NJC023-035-191100-
/O.EXT.KPHI.FL.W.0055.000000T0000Z-231219T1852Z/
/BDKN4.3.ER.231218T1537Z.231219T0600Z.231219T2028Z.NO/
550 PM EST Mon Dec 18 2023

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY TOMORROW AFTERNOON...

* WHAT...Moderate flooding is occurring and major flooding is 
  forecast.

* WHERE...Raritan River at Bound Brook.

* WHEN...Until early tomorrow afternoon.

* IMPACTS...At 28.0 feet, Backyard and low areas are protected by 
  levees and the flood wall. Without the levees or if there is a 
  breach in the levees, minor flooding will occur.
  At 30.0 feet, Main Street is protected by flap valves/sluice 
  gates. This level triggers the gate closures to protect Main 
  Street.
  At 33.0 feet, A large portion of Bound Brook is protected by the 
  flood reduction project. Pump station operations become critical, 
  at this stage, for the continued protection of the borough.

* ADDITIONAL DETAILS...
  - At 5:15 PM EST Monday the stage was 32.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 5:15 PM EST Monday was 32.4 feet.
  - Forecast...The river is expected to rise to a crest of 33.0
    feet just after midnight tonight. It will then fall below
    flood stage tomorrow afternoon.
  - Flood stage is 28.0 feet.
  - Flood History...This crest compares to a previous crest of
    33.1 feet on 09/09/2011.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (7 pm)        Crest
Location        Stg   Stg Day/Time    Tue  Wed        Stg Time Date

Raritan River
Bound Brook     28.0  32.4 Mon 5 pm   27.0 22.1       33.0 1am 12/19


&&

LAT...LON 4057 7456 4056 7448 4049 7438 4045 7442
      4051 7452 4052 7456


$$

Kruzdlo

810 
WGUS81 KPHI 190542
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
1242 AM EST Tue Dec 19 2023

...Observed flooding changed from Moderate to Major severity and 
increased in duration for the following rivers in New Jersey...

  Raritan River At Bound Brook affecting Middlesex and Somerset 
  Counties.



For the Raritan River...including Bound Brook, Manville...Moderate 
flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Additional information is available at www.weather.gov/phi.

The next statement will be issued this afternoon at 1245 PM EST.

&&

NJC023-035-191745-
/O.EXT.KPHI.FL.W.0055.000000T0000Z-231220T0000Z/
/BDKN4.3.ER.231218T1537Z.231219T0315Z.231219T2028Z.NO/
1242 AM EST Tue Dec 19 2023

...FLOOD WARNING NOW IN EFFECT UNTIL THIS EVENING...

* WHAT...Major flooding is occurring and moderate flooding is 
  forecast.

* WHERE...Raritan River at Bound Brook.

* WHEN...Until this evening.

* IMPACTS...At 28.0 feet, Backyard and low areas are protected by 
  levees and the flood wall. Without the levees or if there is a 
  breach in the levees, minor flooding will occur.
  At 30.0 feet, Main Street is protected by flap valves/sluice 
  gates. This level triggers the gate closures to protect Main 
  Street.
  At 33.0 feet, A large portion of Bound Brook is protected by the 
  flood reduction project. Pump station operations become critical, 
  at this stage, for the continued protection of the borough.

* ADDITIONAL DETAILS...
  - At 12:15 AM EST Tuesday the stage was 33.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 12:15 AM EST Tuesday was 33.7 feet.
  - Forecast...The river is expected to fall below flood stage
    late this afternoon and continue falling to 20.3 feet
    Thursday evening.
  - Flood stage is 28.0 feet.
  - Flood History...This crest compares to a previous crest of
    33.3 feet on 01/20/1996.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (1 am)        Crest
Location        Stg   Stg Day/Time    Wed  Thu        Stg Time Date

Raritan River
Bound Brook     28.0  33.4 Tue 12 a   25.5 21.4        MSG  unknown


&&

LAT...LON 4057 7456 4056 7448 4049 7438 4045 7442
      4051 7452 4052 7456


$$

MJL

105 
WGUS81 KPHI 190915
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
415 AM EST Tue Dec 19 2023

...The Flood Warning continues for the following rivers in New 
Jersey...

  Raritan River At Bound Brook affecting Middlesex and Somerset 
  Counties.



For the Raritan River...including Bound Brook, Manville...Moderate 
flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Additional information is available at www.weather.gov/phi.

The next statement will be issued this afternoon at 415 PM EST.

&&

NJC023-035-192115-
/O.CON.KPHI.FL.W.0055.000000T0000Z-231220T0000Z/
/BDKN4.2.ER.231218T1537Z.231219T0315Z.231219T2051Z.NO/
415 AM EST Tue Dec 19 2023

...FLOOD WARNING REMAINS IN EFFECT UNTIL THIS EVENING...

* WHAT...Moderate flooding is occurring and moderate flooding is 
  forecast.

* WHERE...Raritan River at Bound Brook.

* WHEN...Until this evening.

* IMPACTS...At 28.0 feet, Backyard and low areas are protected by 
  levees and the flood wall. Without the levees or if there is a 
  breach in the levees, minor flooding will occur.
  At 30.0 feet, Main Street is protected by flap valves/sluice 
  gates. This level triggers the gate closures to protect Main 
  Street.
  At 33.0 feet, A large portion of Bound Brook is protected by the 
  flood reduction project. Pump station operations become critical, 
  at this stage, for the continued protection of the borough.

* ADDITIONAL DETAILS...
  - At 3:15 AM EST Tuesday the stage was 32.6 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 3:15 AM EST Tuesday was 33.7 feet.
  - Forecast...The river is expected to fall below flood stage
    late this afternoon and continue falling to 20.1 feet early
    Friday morning.
  - Flood stage is 28.0 feet.
  - Flood History...This crest compares to a previous crest of
    32.0 feet on 07/07/1984.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (7 am)        Crest
Location        Stg   Stg Day/Time    Wed  Thu        Stg Time Date

Raritan River
Bound Brook     28.0  32.6 Tue 3 am   24.2 20.9      33.7 10 pm 12/18


&&

LAT...LON 4057 7456 4056 7448 4049 7438 4045 7442
      4051 7452 4052 7456


$$

MJL

449 
WGUS81 KPHI 191634
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
1134 AM EST Tue Dec 19 2023

...The Flood Warning continues for the following rivers in New 
Jersey...

  Raritan River At Bound Brook affecting Middlesex and Somerset 
  Counties.



For the Raritan River...including Bound Brook...Minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Additional information is available at www.weather.gov/phi.

The next statement will be issued this evening at 700 PM EST.

&&

NJC023-035-200000-
/O.CON.KPHI.FL.W.0055.000000T0000Z-231220T0000Z/
/BDKN4.3.ER.231218T1537Z.231219T0315Z.231219T2118Z.NO/
1134 AM EST Tue Dec 19 2023

...FLOOD WARNING REMAINS IN EFFECT UNTIL THIS EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Raritan River at Bound Brook.

* WHEN...Until this evening.

* IMPACTS...At 28.0 feet, Backyard and low areas are protected by 
  levees and the flood wall. Without the levees or if there is a 
  breach in the levees, minor flooding will occur.
  At 30.0 feet, Main Street is protected by flap valves/sluice 
  gates. This level triggers the gate closures to protect Main 
  Street.

* ADDITIONAL DETAILS...
  - At 11:15 AM EST Tuesday the stage was 29.2 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 11:15 AM EST Tuesday was 33.7 feet.
  - Forecast...The river is expected to fall below flood stage
    late this afternoon and continue falling to 19.7 feet Friday
    morning.
  - Flood stage is 28.0 feet.
  - Flood History...This crest compares to a previous crest of
    29.1 feet on 03/31/2010.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (1 pm)        Crest
Location        Stg   Stg Day/Time    Wed  Thu        Stg Time Date

Raritan River
Bound Brook     28.0  29.2 Tue 11 a   22.7 20.3    Crested & falling


&&

LAT...LON 4057 7456 4056 7448 4049 7438 4045 7442
      4051 7452 4052 7456


$$

Kruzdlo

509 
WGUS81 KPHI 192336
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
636 PM EST Tue Dec 19 2023

...The Flood Warning is cancelled for the following rivers in New 
Jersey...

  Raritan River At Bound Brook affecting Middlesex and Somerset 
  Counties.



NJC023-035-200045-
/O.CAN.KPHI.FL.W.0055.000000T0000Z-231219T2336Z/
/BDKN4.3.ER.231218T1537Z.231219T0315Z.231219T1848Z.NO/
636 PM EST Tue Dec 19 2023

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Raritan River At Bound Brook.

* ADDITIONAL DETAILS...
  - At 6:15 PM EST Tuesday the stage was 26.1 feet.
  - The river fell below the flood stage of 28.0 feet this
    afternoon.
  - Forecast...The river is expected to continue to fall to below
    23 feet by midday Tuesday.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (7 pm)        Crest
Location        Stg   Stg Day/Time    Wed  Thu        Stg Time Date

Raritan River
Bound Brook     28.0  26.1 Tue 6 pm   21.9 20.1       27.1 7pm 12/19


&&

LAT...LON 4057 7456 4056 7448 4049 7438 4045 7442
      4051 7452 4052 7456


$$

AAD

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 18, 12:24 AM EST	Areal Flood Advisory	PHI	Hunterdon	48 min
Dec 18, 1:12 AM EST	Areal Flood Warning	PHI	Hunterdon	16 hr
Dec 18, 2:08 AM EST	Areal Flood Warning	PHI	Gloucester	12 hr
Dec 18, 2:15 AM EST	Areal Flood Advisory	PHI	Hunterdon, Somerset	3 hr
Dec 18, 2:30 AM EST	Areal Flood Warning	PHI	Burlington, Camden, Gloucester, Mercer	16 hr
Dec 18, 3:08 AM EST	Areal Flood Advisory	PHI	Hunterdon	45 min
Dec 18, 3:29 AM EST	Areal Flood Advisory	PHI	Hunterdon, Morris, Somerset, Sussex	5 hr
Dec 18, 3:53 AM EST	Areal Flood Warning	PHI	Hunterdon	4 hr
Dec 18, 4:14 AM EST	River Flood Warning	PHI	Mercer	11 hr
Dec 18, 4:39 AM EST	Areal Flood Warning	PHI	Morris	17 hr
Dec 18, 4:46 AM EST	River Flood Warning	PHI	Morris, Passaic	50 hr
Dec 18, 4:55 AM EST	River Flood Warning	PHI	Essex, Morris, Passaic	6 days
Dec 18, 5:06 AM EST	Areal Flood Warning	PHI	Morris, Sussex	31 hr
Dec 18, 5:08 AM EST	Areal Flood Warning	PHI	Hunterdon, Warren	14 hr
Dec 18, 5:10 AM EST	River Flood Warning	PHI	Hunterdon, Somerset	20 hr
Dec 18, 5:22 AM EST	Coastal Flood Warning	PHI	Burlington, Camden, Gloucester	5 hr
Dec 18, 5:35 AM EST	Areal Flood Warning	PHI	Somerset	16 hr
Dec 18, 5:56 AM EST	Areal Flood Warning	PHI	Mercer, Middlesex, Monmouth	14 hr
Dec 18, 6:23 AM EST	Areal Flood Advisory	PHI	Warren	3 hr
Dec 18, 6:29 AM EST	River Flood Warning	PHI	Morris, Somerset	4 days
Dec 18, 6:34 AM EST	River Flood Warning	PHI	Essex, Passaic	6 days
Dec 18, 6:38 AM EST	River Flood Warning	PHI	Essex, Morris, Passaic	7 days
Dec 18, 6:39 AM EST	River Flood Warning	PHI	Morris	3 days
Dec 18, 6:42 AM EST	River Flood Warning	PHI	Middlesex, Somerset	29 hr
Dec 18, 6:45 AM EST	River Flood Warning	PHI	Somerset	21 hr
Dec 18, 6:46 AM EST	River Flood Warning	PHI	Somerset	50 hr
Dec 18, 7:54 AM EST	River Flood Warning	PHI	Burlington	21 days
Dec 18, 8:12 AM EST	River Flood Warning	PHI	Morris, Passaic	44 hr
Dec 18, 8:17 AM EST	River Flood Warning	PHI	Bergen, Morris, Passaic	39 hr
Dec 18, 10:14 AM EST	Areal Flood Warning	PHI	Burlington	23 hr
Dec 18, 10:33 AM EST	Areal Flood Warning	PHI	Cumberland, Gloucester, Salem	9 hr
Dec 18, 10:37 AM EST	Areal Flood Warning	PHI	Atlantic	9 hr
Dec 18, 11:45 AM EST	Coastal Flood Warning	PHI	Monmouth, Ocean	6 hr
Dec 18, 2:00 PM EST	Areal Flood Warning	PHI	Monmouth, Ocean	15 hr
Dec 18, 3:04 PM EST	River Flood Warning	PHI	Mercer	5 hr
Dec 18, 3:26 PM EST	Areal Flood Warning	PHI	Warren	20 hr
Dec 18, 3:28 PM EST	River Flood Warning	PHI	Morris	10 hr
Dec 18, 3:30 PM EST	River Flood Warning	PHI	Morris, Somerset	53 hr
Dec 18, 4:28 PM EST	Areal Flood Warning	PHI	Burlington, Mercer, Monmouth	19 hr
Dec 18, 4:30 PM EST	Areal Flood Warning	PHI	Sussex	12 hr
Dec 18, 6:13 PM EST	Coastal Flood Advisory	PHI	Ocean	10 hr

Nearby

River Flood Warnings in New Jersey, 2023 Every river flood warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.