Alert archive / New Jersey / River Flood Warnings in 2024

River Flood Warning 18, NWS Philadelphia/Mount Holly

January 9, 2024Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Jan 9, 2024, 4:25 PM EST for Mercer County, New Jersey. It took effect at Jan 9, 2024, 11:10 PM EST. It was in force for 12 hr.

The area

The outline as issued.

The facts

Issued: Jan 9, 2024, 4:25 PM EST (21:25 UTC)
In effect from: Jan 9, 2024, 11:10 PM EST
Expired: Jan 10, 2024, 11:11 AM EST
In force: 12 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Moderate

County Mercer County, NJ

The radar

The Philadelphia radar (KDIX), 42 km from the middle of the area, began a volume at 21:27 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 Assunpink Creek at Trenton (TACN4). The gauge peaked at 8.72 ft at Jan 10, 2024, 5:00 AM EST.

Action stage: 7 ft
Minor stage: 8.5 ft
Moderate stage: 9.5 ft
Major stage: 11 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01464000, 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.

081 
WGUS41 KPHI 092125
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
425 PM EST Tue Jan 9 2024

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

  Assunpink Creek At Trenton affecting Mercer County.



For the Assunpink Creek...including Trenton...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 late tonight at 430 AM EST.

&&

NJC021-100930-
/O.NEW.KPHI.FL.W.0018.240110T0410Z-240110T1845Z/
/TACN4.2.ER.240110T0410Z.240110T0600Z.240110T1245Z.UU/
425 PM EST Tue Jan 9 2024

...FLOOD WARNING IN EFFECT FROM THIS EVENING TO EARLY TOMORROW 
AFTERNOON...

* WHAT...Moderate flooding is forecast.

* WHERE...Assunpink Creek at Trenton.

* WHEN...From this evening to early tomorrow afternoon.

* IMPACTS...At 6.5 feet, Assunpink Park floods. George Page Park 
  floods. Minor street flooding in Trenton.
  At 9.0 feet, Mulberry Street begins to flood.
  At 10.0 feet, Mulberry Street flooding increases. Evacuations 
  possible.

* ADDITIONAL DETAILS...
  - At 3:15 PM EST Tuesday the stage was 4.0 feet.
  - Forecast...The river is expected to rise above flood stage
    late this evening to a crest of 9.5 feet just after midnight
    tonight. It will then fall below flood stage tomorrow
    morning.
  - Flood stage is 8.5 feet.
  - Flood History...This crest compares to a previous crest of
    9.4 feet on 03/14/2010.
  - http://www.weather.gov/safety/flood

&&

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

Assunpink Creek
Trenton         8.5   4.0  Tue 3 pm   7.1  5.7        9.5 1am 1/10


&&

LAT...LON 4023 7479 4027 7472 4025 7469 4022 7468
      4018 7475 4021 7476


$$

Kruzdlo

3 follow-up statements

155 
WGUS81 KPHI 100435
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
1135 PM EST Tue Jan 9 2024

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

  Assunpink Creek At Trenton affecting Mercer County.



For the Assunpink Creek...including Trenton...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 Wednesday morning at 1145 AM EST.

&&

NJC021-101645-
/O.CON.KPHI.FL.W.0018.000000T0000Z-240110T1845Z/
/TACN4.1.ER.240110T0516Z.240110T0600Z.240110T1410Z.UU/
1135 PM EST Tue Jan 9 2024

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

* WHAT...Minor flooding is forecast.

* WHERE...Assunpink Creek at Trenton.

* WHEN...Until early tomorrow afternoon.

* IMPACTS...At 6.5 feet, Assunpink Park floods. George Page Park 
  floods. Minor street flooding in Trenton.
  At 9.0 feet, Mulberry Street begins to flood.
  At 10.0 feet, Mulberry Street flooding increases. Evacuations 
  possible.

* ADDITIONAL DETAILS...
  - At 11:15 PM EST Tuesday the stage was 7.5 feet.
  - Forecast...The river is expected to rise above flood stage
    and to a crest of 9.2 feet just after midnight tonight. It
    will then fall below flood stage late tomorrow morning.
  - Flood stage is 8.5 feet.
  - Flood History...This crest compares to a previous crest of
    9.3 feet on 09/08/2011.
  - http://www.weather.gov/safety/flood

&&

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

Assunpink Creek
Trenton         8.5   7.5  Tue 11 p   6.7  5.3        9.2 1am 1/10


&&

LAT...LON 4023 7479 4027 7472 4025 7469 4022 7468
      4018 7475 4021 7476


$$

AKL

027 
WGUS81 KPHI 100838
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
338 AM EST Wed Jan 10 2024

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

  Assunpink Creek At Trenton affecting Mercer County.



For the Assunpink Creek...including Trenton...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 this afternoon at 145 PM EST.

&&

NJC021-101845-
/O.CON.KPHI.FL.W.0018.000000T0000Z-240110T1845Z/
/TACN4.1.ER.240110T0811Z.240110T1200Z.240110T1500Z.UU/
338 AM EST Wed Jan 10 2024

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

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

* WHERE...Assunpink Creek at Trenton.

* WHEN...Until this afternoon.

* IMPACTS...At 6.5 feet, Assunpink Park floods. George Page Park 
  floods. Minor street flooding in Trenton.
  At 9.0 feet, Mulberry Street begins to flood.
  At 10.0 feet, Mulberry Street flooding increases. Evacuations 
  possible.

* ADDITIONAL DETAILS...
  - At 3:15 AM EST Wednesday the stage was 8.5 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 3:15 AM EST Wednesday was 8.5 feet.
  - Forecast...The river is expected to rise to a crest of 9.1
    feet this morning. It will then fall below flood stage late
    this morning.
  - Flood stage is 8.5 feet.
  - Flood History...This crest compares to a previous crest of
    9.0 feet on 03/30/2010.
  - http://www.weather.gov/safety/flood

&&

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

Assunpink Creek
Trenton         8.5   8.5  Wed 3 am   7.1  5.7        9.1 7am 1/10


&&

LAT...LON 4023 7479 4027 7472 4025 7469 4022 7468
      4018 7475 4021 7476


$$

AKL

501 
WGUS81 KPHI 101611
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
1111 AM EST Wed Jan 10 2024

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

  Assunpink Creek At Trenton affecting Mercer County.



NJC021-101715-
/O.CAN.KPHI.FL.W.0018.000000T0000Z-240110T1611Z/
/TACN4.1.ER.240110T0811Z.240110T1015Z.240110T1133Z.UU/
1111 AM EST Wed Jan 10 2024

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Assunpink Creek At Trenton.

* ADDITIONAL DETAILS...
  - At 10:15 AM EST Wednesday the stage was 7.1 feet.
  - Forecast...The river will continue to fall today.
  - http://www.weather.gov/safety/flood

&&

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

Assunpink Creek
Trenton         8.5   7.1  Wed 10 a   5.8  4.8    Crested & Falling


&&

LAT...LON 4023 7479 4027 7472 4025 7469 4022 7468
      4018 7475 4021 7476


$$

Kruzdlo

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 9, 5:03 AM EST	Coastal Flood Advisory	PHI	Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 2 more	38 hr
Jan 9, 3:18 PM EST	River Flood Warning	PHI	Bergen, Morris, Passaic	41 hr
Jan 9, 3:23 PM EST	River Flood Warning	PHI	Morris, Passaic	56 hr
Jan 9, 3:29 PM EST	River Flood Warning	PHI	Essex, Morris, Passaic	9 days
Jan 9, 3:37 PM EST	River Flood Warning	PHI	Essex, Morris, Passaic	8 days
Jan 9, 3:40 PM EST	River Flood Warning	PHI	Essex, Passaic	21 days
Jan 9, 3:45 PM EST	River Flood Warning	PHI	Passaic	51 hr
Jan 9, 3:47 PM EST	River Flood Warning	PHI	Morris, Passaic	51 hr
Jan 9, 3:50 PM EST	River Flood Warning	PHI	Morris	5 days
Jan 9, 3:53 PM EST	River Flood Warning	PHI	Somerset	52 hr
Jan 9, 3:56 PM EST	River Flood Warning	PHI	Somerset	23 hr
Jan 9, 3:58 PM EST	River Flood Warning	PHI	Middlesex, Somerset	37 hr
Jan 9, 4:00 PM EST	River Flood Warning	PHI	Middlesex, Somerset	41 hr
Jan 9, 5:07 PM EST	River Flood Warning	PHI	Hunterdon, Somerset	27 hr
Jan 9, 5:58 PM EST	Areal Flood Warning	PHI	Burlington, Camden, Gloucester, Mercer	8 hr
Jan 9, 6:08 PM EST	Areal Flood Warning	PHI	Gloucester, Salem	9 hr
Jan 9, 6:13 PM EST	Areal Flood Warning	PHI	Hunterdon, Mercer	6 hr
Jan 9, 6:26 PM EST	Areal Flood Warning	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Warren	6 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.