Alert archive / New Jersey / River Flood Warnings in 2024

River Flood Warning 52, NWS Philadelphia/Mount Holly

March 23, 2024Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Mar 23, 2024, 11:49 AM EDT for Somerset County, New Jersey. It took effect at Mar 23, 2024, 5:57 PM EDT. It was in force for 12 hr.

The area

The outline as issued.

The facts

Issued: Mar 23, 2024, 11:49 AM EDT (15:49 UTC)
In effect from: Mar 23, 2024, 5:57 PM EDT
Expired: Mar 24, 2024, 6:20 AM EDT
In force: 12 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

County Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 76 km from the middle of the area, began a volume at 15:51 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 North Branch Raritan River near Raritan (RRTN4). The gauge peaked at 10.56 ft at Mar 23, 2024, 10:00 PM EDT.

Action stage: 8 ft
Minor stage: 10 ft
Moderate stage: 12 ft
Major stage: 15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01400000, 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.

305 
WGUS41 KPHI 231549
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
1149 AM EDT Sat Mar 23 2024

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

  North Branch Raritan River At Raritan affecting Somerset County.



For the Raritan River...including Raritan...Minor 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 late tonight at midnight EDT.

&&

NJC035-240400-
/O.NEW.KPHI.FL.W.0052.240323T2337Z-240324T1210Z/
/RRTN4.1.ER.240323T2337Z.240324T0000Z.240324T0610Z.NO/
1149 AM EDT Sat Mar 23 2024

...FLOOD WARNING IN EFFECT FROM THIS EVENING TO TOMORROW MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...North Branch Raritan River at Raritan.

* WHEN...From this evening to tomorrow morning.

* IMPACTS...At 7.0 feet, Minor flooding begins upstream on Black 
  River Road.
  At 10.0 feet, Flooding occurs along Old York Road and in North 
  Branch Village.

* ADDITIONAL DETAILS...
  - At 11:15 AM EDT Saturday the stage was 3.8 feet.
  - Forecast...The river is expected to rise above flood stage
    this evening to a crest of 10.3 feet this evening. It will
    then fall below flood stage just after midnight tonight.
  - Flood stage is 10.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.3 feet on 04/03/2005.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (2 pm)        Crest
Location        Stg   Stg Day/Time    Sun  Mon        Stg Time Date

North Branch Rar
Raritan         10.0  3.8  Sat 11 a   5.0  4.1        10.3 8pm 3/23


&&

LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471


$$

Kruzdlo

5 follow-up statements

720 
WGUS81 KPHI 232157
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
557 PM EDT Sat Mar 23 2024

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

  North Branch Raritan River At Raritan affecting Somerset County.



For the Raritan River...including Raritan...Minor 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 Sunday morning at 600 AM EDT.

&&

NJC035-241000-
/O.EXT.KPHI.FL.W.0052.240323T2157Z-240324T1210Z/
/RRTN4.1.ER.240323T2251Z.240324T0000Z.240324T0718Z.NO/
557 PM EDT Sat Mar 23 2024

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

* WHAT...Minor flooding is forecast.

* WHERE...North Branch Raritan River at Raritan.

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

* IMPACTS...At 7.0 feet, Minor flooding begins upstream on Black 
  River Road.
  At 10.0 feet, Flooding occurs along Old York Road and in North 
  Branch Village.

* ADDITIONAL DETAILS...
  - At 5:45 PM EDT Saturday the stage was 9.1 feet and rising.
  - Forecast...The river is expected to rise above flood stage
    this evening to a crest of 10.9 feet this evening. It will
    then fall below flood stage late tonight.
  - Flood stage is 10.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.8 feet on 04/05/1984.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (8 pm)        Crest
Location        Stg   Stg Day/Time    Sun  Mon        Stg Time Date

North Branch Rar
Raritan         10.0  9.1  Sat 5 pm   4.8  4.0        10.9 8pm 3/23


&&

LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471


$$

Hoeflich

183 
WGUS81 KPHI 232340
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
740 PM EDT Sat Mar 23 2024

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

  North Branch Raritan River At Raritan affecting Somerset County.



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

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 Sunday morning at 745 AM EDT.

&&

NJC035-241145-
/O.CON.KPHI.FL.W.0052.000000T0000Z-240324T1210Z/
/RRTN4.1.ER.240323T2332Z.240324T0000Z.240324T0718Z.NO/
740 PM EDT Sat Mar 23 2024

...FLOOD WARNING REMAINS IN EFFECT UNTIL TOMORROW MORNING...

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

* WHERE...North Branch Raritan River at Raritan.

* WHEN...Until tomorrow morning.

* IMPACTS...At 7.0 feet, Minor flooding begins upstream on Black 
  River Road.
  At 10.0 feet, Flooding occurs along Old York Road and in North 
  Branch Village.

* ADDITIONAL DETAILS...
  - At 7:30 PM EDT Saturday the stage was 10.1 feet and rising.
  - Forecast...The river is expected to rise to a crest of 10.9
    feet this evening. It will then fall below flood stage late
    tonight.
  - Flood stage is 10.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.8 feet on 04/05/1984.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (8 pm)        Crest
Location        Stg   Stg Day/Time    Sun  Mon        Stg Time Date

North Branch Rar
Raritan         10.0  10.1  Sat 7 pm  4.8  4.0        10.9 8pm 3/23


&&

LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471


$$

Hoeflich

957 
WGUS81 KPHI 240152
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
952 PM EDT Sat Mar 23 2024

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

  North Branch Raritan River At Raritan affecting Somerset County.



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

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 Sunday morning at 815 AM EDT.

&&

NJC035-241215-
/O.CON.KPHI.FL.W.0052.000000T0000Z-240324T1210Z/
/RRTN4.1.ER.240323T2332Z.240324T0230Z.240324T0400Z.NO/
952 PM EDT Sat Mar 23 2024

...FLOOD WARNING REMAINS IN EFFECT UNTIL TOMORROW MORNING...

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

* WHERE...North Branch Raritan River at Raritan.

* WHEN...Until tomorrow morning.

* IMPACTS...At 7.0 feet, Minor flooding begins upstream on Black 
  River Road.
  At 10.0 feet, Flooding occurs along Old York Road and in North 
  Branch Village.

* ADDITIONAL DETAILS...
  - At 9:45 PM EDT Saturday the stage was 10.3 feet and rising.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 9:45 PM EDT Saturday was 10.3 feet.
  - Forecast...The river is expected to rise to a crest of 10.6
    feet late this evening. It will then fall below flood stage
    just after midnight tonight.
  - Flood stage is 10.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.6 feet on 07/10/2023.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (8 pm)        Crest
Location        Stg   Stg Day/Time    Sun  Mon        Stg Time Date

North Branch Rar
Raritan         10.0  10.3 Sat 9 pm   4.4  3.9        10.6 10pm 3/23


&&

LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471


$$

Hoeflich

828 
WGUS81 KPHI 240514
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
114 AM EDT Sun Mar 24 2024

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

  North Branch Raritan River At Raritan affecting Somerset County.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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

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 morning at 815 AM EDT.

&&

NJC035-241215-
/O.CON.KPHI.FL.W.0052.000000T0000Z-240324T1210Z/
/RRTN4.1.ER.240323T2332Z.240324T0245Z.240324T0428Z.NO/
114 AM EDT Sun Mar 24 2024

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

* WHAT...Minor flooding is occurring.

* WHERE...North Branch Raritan River at Raritan.

* WHEN...Until this morning.

* IMPACTS...At 7.0 feet, Minor flooding begins upstream on Black 
  River Road.
  At 10.0 feet, Flooding occurs along Old York Road and in North 
  Branch Village.

* ADDITIONAL DETAILS...
  - At 1:00 AM EDT Sunday the stage was 10.1 feet.
  - Forecast...The river is expected to fall to 3.7 feet Tuesday
    evening.
  - Flood stage is 10.0 feet.
  - Flood History...This crest compares to a previous crest of
    9.7 feet on 03/22/1999.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (2 am)        Crest
Location        Stg   Stg Day/Time    Mon  Tue        Stg Time Date

North Branch Rar
Raritan         10.0  10.1 Sun 1 am   4.2  3.8      Crested & falling


&&

LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471


$$

AKL

246 
WGUS81 KPHI 241020
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
620 AM EDT Sun Mar 24 2024

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

  North Branch Raritan River At Raritan affecting Somerset County.



NJC035-241130-
/O.CAN.KPHI.FL.W.0052.000000T0000Z-240324T1020Z/
/RRTN4.1.ER.240323T2332Z.240324T0245Z.240324T0442Z.NO/
620 AM EDT Sun Mar 24 2024

...FLOOD WARNING IS CANCELLED...

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

* ADDITIONAL DETAILS...
  - At 6:15 AM EDT Sunday the stage was 4.4 feet.
  - Forecast...The river is expected to fall to 3.7 feet Tuesday
    evening.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (8 am)        Crest
Location        Stg   Stg Day/Time    Mon  Tue        Stg Time Date

North Branch Rar
Raritan         10.0  4.4  Sun 6 am   4.1  3.8      Crested & falling


&&

LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471


$$

AKL

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 23, 8:50 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Mercer	2 hr
Mar 23, 11:15 AM EDT	Areal Flood Warning	PHI	Burlington, Camden, Gloucester, Mercer	6 hr
Mar 23, 11:21 AM EDT	Areal Flood Warning	PHI	Hunterdon, Mercer	6 hr
Mar 23, 11:30 AM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset	69 min
Mar 23, 11:35 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Mercer, Salem	3 hr
Mar 23, 12:39 PM EDT	Areal Flood Warning	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset	6 hr
Mar 23, 12:42 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Sussex, Warren	5 hr
Mar 23, 1:12 PM EDT	River Flood Warning	PHI	Mercer	12 hr
Mar 23, 2:35 PM EDT	Areal Flood Warning	PHI	Burlington, Camden, Gloucester	9 hr
Mar 23, 2:40 PM EDT	Areal Flood Warning	PHI	Cumberland, Salem	16 hr
Mar 23, 3:36 PM EDT	Coastal Flood Watch	PHI	Atlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean	24 hr
Mar 23, 3:43 PM EDT	River Flood Warning	PHI	Burlington	53 hr
Mar 23, 3:56 PM EDT	River Flood Warning	PHI	Essex, Morris, Passaic	3 days
Mar 23, 3:59 PM EDT	River Flood Warning	PHI	Somerset	38 hr
Mar 23, 4:12 PM EDT	River Flood Warning	PHI	Hunterdon, Somerset	6 hr
Mar 23, 4:14 PM EDT	River Flood Warning	PHI	Middlesex, Somerset	20 hr
Mar 23, 4:15 PM EDT	River Flood Warning	PHI	Middlesex, Somerset	21 hr
Mar 23, 4:50 PM EDT	Areal Flood Warning	PHI	Mercer, Middlesex, Somerset	7 hr
Mar 23, 5:09 PM EDT	Areal Flood Warning	PHI	Hunterdon	5 hr
Mar 23, 5:46 PM EDT	Areal Flood Warning	PHI	Burlington	13 hr
Mar 23, 6:22 PM EDT	Areal Flood Warning	PHI	Hunterdon, Somerset	4 hr

Nearby

River Flood Warnings in New Jersey, 2024 Every river flood warning in 2024

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.