Alert archive / New Jersey / River Flood Warnings in 2023

River Flood Warning 45, NWS Philadelphia/Mount Holly

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

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 18, 2023, 5:10 AM EST for Hunterdon County, Somerset County, New Jersey. It was in force for 20 hr.

The area

The outline as issued.

The facts

Issued: Dec 18, 2023, 5:10 AM EST (10:10 UTC)
Expired: Dec 19, 2023, 1:27 AM EST
In force: 20 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

Counties Hunterdon County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 10:10 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 South Branch Raritan River at Stanton (STTN4). The gauge peaked at 11.17 ft at Dec 18, 2023, 9:00 AM EST.

Action stage: 7 ft
Minor stage: 8 ft
Moderate stage: 10 ft
Major stage: 12 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01397000, 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.

494 
WGUS41 KPHI 181010
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
510 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...

  South Branch Raritan River At Stanton affecting Hunterdon and 
  Somerset 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.

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

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

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

The next statement will be issued this afternoon at 515 PM EST.

&&

NJC019-035-182215-
/O.NEW.KPHI.FL.W.0045.231218T1010Z-231219T1200Z/
/STTN4.1.ER.231218T0841Z.231218T1800Z.231219T0600Z.NO/
510 AM EST Mon Dec 18 2023

...FLOOD WARNING IN EFFECT FROM EARLY THIS MORNING TO TUESDAY 
MORNING...

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

* WHERE...South Branch Raritan River at Stanton.

* WHEN...From early this morning to Tuesday morning.

* IMPACTS...At 5.0 feet, Minor low land flooding downstream of gauge.
  At 8.0 feet, Right bank and approach to bridge is flooded.
  At 10.0 feet, Houses downstream begin to take on water.

* ADDITIONAL DETAILS...
  - At 5:00 AM EST Monday the stage was 8.8 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 5:00 AM EST Monday was 8.8 feet.
  - Forecast...The river is expected to rise to a crest of 9.9
    feet this afternoon. It will then fall below flood stage just
    after midnight tonight.
  - Flood stage is 8.0 feet.
  - Flood History...This crest compares to a previous crest of
    9.9 feet on 10/19/1996.
  - http://www.weather.gov/safety/flood

&&

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

South Branch Rar
Stanton         8.0   8.8  Mon 5 am   7.0  4.6        9.9 1pm 12/18


&&

LAT...LON 4061 7496 4063 7488 4055 7481 4053 7474
      4046 7475 4050 7487


$$

MPS

5 follow-up statements

048 
WGUS41 KPHI 181218
FLWPHI

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

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

  South Branch Raritan River At Stanton affecting Hunterdon and 
  Somerset Counties.



For the Raritan River...including Stanton...Minor 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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

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

The next statement will be issued this evening at 730 PM EST.

&&

NJC019-035-190030-
/O.EXT.KPHI.FL.W.0045.000000T0000Z-231219T0925Z/
/STTN4.2.ER.231218T0841Z.231218T1200Z.231219T0325Z.NO/
718 AM EST Mon Dec 18 2023

...FLOOD WARNING NOW IN EFFECT UNTIL LATE TONIGHT...

* WHAT...Moderate flooding is occurring.

* WHERE...South Branch Raritan River at Stanton.

* WHEN...Until late tonight.

* IMPACTS...At 5.0 feet, Minor low land flooding downstream of gauge.
  At 8.0 feet, Right bank and approach to bridge is flooded.
  At 10.0 feet, Houses downstream begin to take on water.

* ADDITIONAL DETAILS...
  - At 7:00 AM EST Monday the stage was 10.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 7:00 AM EST Monday was 10.4 feet.
  - Forecast...The river is expected to fall below flood stage
    late this evening and continue falling to 4.0 feet early
    Thursday morning.
  - Flood stage is 8.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.5 feet on 10/09/1903.
  - http://www.weather.gov/safety/flood

&&

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

South Branch Rar
Stanton         8.0   10.4 Mon 7 am   7.0  4.7       10.10 7am 12/18


&&

LAT...LON 4061 7496 4063 7488 4055 7481 4053 7474
      4046 7475 4050 7487


$$

Kruzdlo

993 
WGUS81 KPHI 181308
FLSPHI

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

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

  South Branch Raritan River At Stanton affecting Somerset and 
  Hunterdon 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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

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

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

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

&&

NJC019-035-190115-
/O.EXT.KPHI.FL.W.0045.000000T0000Z-231219T1800Z/
/STTN4.2.ER.231218T0841Z.231218T1800Z.231219T1200Z.NO/
808 AM EST Mon Dec 18 2023

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

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

* WHERE...South Branch Raritan River at Stanton.

* WHEN...Until early tomorrow afternoon.

* IMPACTS...At 5.0 feet, Minor low land flooding downstream of gauge.
  At 8.0 feet, Right bank and approach to bridge is flooded.
  At 10.0 feet, Houses downstream begin to take on water.

* ADDITIONAL DETAILS...
  - At 8:00 AM EST Monday the stage was 11.1 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 8:00 AM EST Monday was 11.1 feet.
  - Forecast...The river is expected to rise to a crest of 11.7
    feet this afternoon. It will then fall below flood stage
    tomorrow morning.
  - Flood stage is 8.0 feet.
  - Flood History...This crest compares to a previous crest of
    12.0 feet on 04/02/1970.
  - http://www.weather.gov/safety/flood

&&

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

South Branch Rar
Stanton         8.0   11.1 Mon 8 am   8.0  5.2        11.7 1pm 12/18


&&

LAT...LON 4061 7496 4063 7488 4055 7481 4053 7474
      4046 7475 4050 7487


$$

SFJ

592 
WGUS81 KPHI 182158
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
458 PM EST Mon Dec 18 2023

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

  South Branch Raritan River At Stanton affecting Somerset and 
  Hunterdon Counties.



For the Raritan River...including Stanton...Minor 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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

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

The next statement will be issued late tonight at 500 AM EST.

&&

NJC019-035-191000-
/O.CON.KPHI.FL.W.0045.000000T0000Z-231219T1800Z/
/STTN4.2.ER.231218T0841Z.231218T1345Z.231219T0636Z.NO/
458 PM EST Mon Dec 18 2023

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

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

* WHERE...South Branch Raritan River at Stanton.

* WHEN...Until early tomorrow afternoon.

* IMPACTS...At 5.0 feet, Minor low land flooding downstream of gauge.
  At 8.0 feet, Right bank and approach to bridge is flooded.
  At 10.0 feet, Houses downstream begin to take on water.

* ADDITIONAL DETAILS...
  - At 4:45 PM EST Monday the stage was 9.7 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 4:45 PM EST Monday was 11.2 feet.
  - Forecast...The river is expected to fall below flood stage
    just after midnight tonight and continue falling to 4.0 feet
    early Thursday afternoon.
  - Flood stage is 8.0 feet.
  - Flood History...This crest compares to a previous crest of
    9.8 feet on 01/19/1996.
  - http://www.weather.gov/safety/flood

&&

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

South Branch Rar
Stanton         8.0   9.7  Mon 4 pm   5.6  4.2     Crested & falling


&&

LAT...LON 4061 7496 4063 7488 4055 7481 4053 7474
      4046 7475 4050 7487


$$

Kruzdlo

824 
WGUS81 KPHI 182258
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
558 PM EST Mon Dec 18 2023

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

  South Branch Raritan River At Stanton affecting Somerset and 
  Hunterdon Counties.



For the Raritan River...including Stanton...Minor 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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

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

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

&&

NJC019-035-191100-
/O.CON.KPHI.FL.W.0045.000000T0000Z-231219T1800Z/
/STTN4.2.ER.231218T0841Z.231218T1345Z.231219T0636Z.NO/
558 PM EST Mon Dec 18 2023

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

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

* WHERE...South Branch Raritan River at Stanton.

* WHEN...Until early tomorrow afternoon.

* IMPACTS...At 5.0 feet, Minor low land flooding downstream of gauge.
  At 8.0 feet, Right bank and approach to bridge is flooded.
  At 10.0 feet, Houses downstream begin to take on water.

* ADDITIONAL DETAILS...
  - At 5:30 PM EST Monday the stage was 9.6 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 5:30 PM EST Monday was 11.2 feet.
  - Forecast...The river is expected to fall below flood stage
    just after midnight tonight and continue falling to 4.0 feet
    early Thursday afternoon.
  - Flood stage is 8.0 feet.
  - Flood History...This crest compares to a previous crest of
    9.7 feet on 09/20/1989.
  - http://www.weather.gov/safety/flood

&&

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

South Branch Rar
Stanton         8.0   9.6  Mon 5 pm   5.6  4.2    Crested & falling


&&

LAT...LON 4061 7496 4063 7488 4055 7481 4053 7474
      4046 7475 4050 7487


$$

Kruzdlo

391 
WGUS81 KPHI 190627
FLSPHI

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

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

  South Branch Raritan River At Stanton affecting Hunterdon and 
  Somerset Counties.



NJC019-035-190730-
/O.CAN.KPHI.FL.W.0045.000000T0000Z-231219T0627Z/
/STTN4.2.ER.231218T0841Z.231218T1345Z.231219T0535Z.NO/
127 AM EST Tue Dec 19 2023

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the South Branch Raritan River At Stanton.

* ADDITIONAL DETAILS...
  - At 1:15 AM EST Tuesday the stage was 7.8 feet and falling.
  - Forecast...The river is expected to fall to 3.9 feet Thursday
    evening.
  - http://www.weather.gov/safety/flood

&&

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

South Branch Rar
Stanton         8.0   7.8  Tue 1 am   5.1  4.1         MSG  unknown


&&

LAT...LON 4061 7496 4063 7488 4055 7481 4053 7474
      4046 7475 4050 7487


$$

MJL

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, 5:22 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, 6:43 AM EST	River Flood Warning	PHI	Middlesex, Somerset	36 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.