Alert archive / New Jersey / River Flood Warnings in 2025

River Flood Warning 1, NWS Philadelphia/Mount Holly

May 14, 2025Morris County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at May 14, 2025, 5:45 PM EDT for Morris County, Somerset County, New Jersey. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: May 14, 2025, 5:45 PM EDT (21:45 UTC)
Expired: May 14, 2025, 9:51 PM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

Counties Morris County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 89 km from the middle of the area, began a volume at 21:46 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 Passaic River at Chatham (CAMN4). The gauge peaked at 6.03 ft at May 14, 2025, 6:00 PM EDT.

Action stage: 5.5 ft
Minor stage: 6 ft
Moderate stage: 8 ft
Major stage: 10 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01379500, 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.

805 
WGUS41 KPHI 142145
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
Issued by National Weather Service New York NY
545 PM EDT Wed May 14 2025

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

  Passaic River At Chatham affecting Somerset and Morris Counties.

For the Passaic River...including Chatham...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 500 AM EDT.

&&

NJC027-035-150900-
/O.NEW.KPHI.FL.W.0001.250514T2339Z-250515T0900Z/
/CAMN4.1.ER.250514T2339Z.250515T0000Z.250515T0300Z.NO/
545 PM EDT Wed May 14 2025

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

* WHAT...Minor flooding is forecast.

* WHERE...Passaic River at Chatham.

* WHEN...Until late tonight.

* IMPACTS...At 5.5 feet, Open areas adjacent to the Passaic River 
  flood in New Providence, Chatham Township, and Berkley Heights.
  At 6.0 feet, Portions of the Shepard Kolluck Park in Chatham 
  floods. River Road by Henry Drive is subject to closures.
  At 6.5 feet, The Central and Bridge Avenue bridges in Chatham 
  Township are subject to closures. Edgewood Road is closed.

* ADDITIONAL DETAILS...
  - At 5:15 PM EDT Wednesday the stage was 4.6 feet and rising.
  - Forecast...The river is expected to rise above flood stage
    this evening to a crest of 6.2 feet this evening. It will
    then fall below flood stage late this evening.
  - Flood stage is 6.0 feet.
  - Flood History...This crest compares to a previous crest of
    6.2 feet on 05/11/1998.
  - http://www.weather.gov/safety/flood

&&

             Fld   Observed           Forecasts (8 pm EDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Passaic River
Chatham      6.0   4.6   Wed 5 pm EDT 6.2   5.9   MSG          


&&

LAT...LON 4082 7430 4074 7432 4060 7452 4067 7452
      4075 7441 4081 7438


$$

DBR

3 follow-up statements

458 
WGUS81 KPHI 142146
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
Issued by National Weather Service New York NY
546 PM EDT Wed May 14 2025

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

  Passaic River At Chatham affecting Somerset and Morris Counties.

For the Passaic River...including Chatham...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 500 AM EDT.

&&

NJC027-035-150900-
/O.EXT.KPHI.FL.W.0001.250514T2146Z-250515T0900Z/
/CAMN4.1.ER.250514T2339Z.250515T0000Z.250515T0300Z.NO/
546 PM EDT Wed May 14 2025

...FLOOD WARNING NOW IN EFFECT FROM THIS AFTERNOON TO LATE TONIGHT...

* WHAT...Minor flooding is forecast.

* WHERE...Passaic River at Chatham.

* WHEN...From this afternoon to late tonight.

* IMPACTS...At 5.5 feet, Open areas adjacent to the Passaic River 
  flood in New Providence, Chatham Township, and Berkley Heights.
  At 6.0 feet, Portions of the Shepard Kolluck Park in Chatham 
  floods. River Road by Henry Drive is subject to closures.
  At 6.5 feet, The Central and Bridge Avenue bridges in Chatham 
  Township are subject to closures. Edgewood Road is closed.

* ADDITIONAL DETAILS...
  - At 5:15 PM EDT Wednesday the stage was 4.6 feet and rising.
  - Forecast...The river is expected to rise above flood stage
    this evening to a crest of 6.2 feet this evening. It will
    then fall below flood stage late this evening.
  - Flood stage is 6.0 feet.
  - Flood History...This crest compares to a previous crest of
    6.2 feet on 05/11/1998.
  - http://www.weather.gov/safety/flood

&&

             Fld   Observed           Forecasts (8 pm EDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Passaic River
Chatham      6.0   4.6   Wed 5 pm EDT 6.2   5.9   MSG          


&&

LAT...LON 4082 7430 4074 7432 4060 7452 4067 7452
      4075 7441 4081 7438


$$

Hoeflich

530 
WGUS81 KPHI 142212
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
Issued by National Weather Service New York NY
612 PM EDT Wed May 14 2025

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

  Passaic River At Chatham affecting Somerset and Morris Counties.

For the Passaic River...including Chatham...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 500 AM EDT.

&&

NJC027-035-150900-
/O.CON.KPHI.FL.W.0001.000000T0000Z-250515T0900Z/
/CAMN4.1.ER.250514T2104Z.250515T0000Z.250515T0300Z.NO/
612 PM EDT Wed May 14 2025

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

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

* WHERE...Passaic River at Chatham.

* WHEN...Until late tonight.

* IMPACTS...At 5.5 feet, Open areas adjacent to the Passaic River 
  flood in New Providence, Chatham Township, and Berkley Heights.
  At 6.0 feet, Portions of the Shepard Kolluck Park in Chatham 
  floods. River Road by Henry Drive is subject to closures.
  At 6.5 feet, The Central and Bridge Avenue bridges in Chatham 
  Township are subject to closures. Edgewood Road is closed.

* ADDITIONAL DETAILS...
  - At 5:45 PM EDT Wednesday the stage was 6.1 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 5:45 PM EDT Wednesday was 6.1 feet.
  - Forecast...The river is expected to rise to a crest of 6.2
    feet this evening. It will then fall below flood stage late
    this evening.
  - Flood stage is 6.0 feet.
  - Flood History...This crest compares to a previous crest of
    6.2 feet on 05/11/1998.
  - http://www.weather.gov/safety/flood

&&

             Fld   Observed           Forecasts (8 pm EDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Passaic River
Chatham      6.0   6.1   Wed 5 pm EDT 6.2   5.9   MSG          


&&

LAT...LON 4082 7430 4074 7432 4060 7452 4067 7452
      4075 7441 4081 7438


$$

Hoeflich

457 
WGUS81 KPHI 150151
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
Issued by National Weather Service New York NY
951 PM EDT Wed May 14 2025

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

  Passaic River At Chatham affecting Somerset and Morris Counties.

NJC027-035-150300-
/O.CAN.KPHI.FL.W.0001.000000T0000Z-250515T0151Z/
/CAMN4.1.ER.250514T2104Z.000000T0000Z.000000T0000Z.NO/
951 PM EDT Wed May 14 2025

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Passaic River At Chatham.

* ADDITIONAL DETAILS...
  - At 9:15 PM EDT Wednesday the stage was 5.3 feet and falling.
  - Forecast...The river is expected to fall to 5.1 feet Saturday
    evening.
  - http://www.weather.gov/safety/flood

&&

             Fld   Observed           Forecasts (8 pm EDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Passaic River
Chatham      6.0   5.3   Wed 9 pm EDT 5.2   5.1   5.1          


&&

LAT...LON 4082 7430 4074 7432 4060 7452 4067 7452
      4075 7441 4081 7438


$$

Hoeflich

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 9:13 AM EDT	Coastal Flood Advisory	PHI	Burlington, Camden, Gloucester	22 hr
May 14, 12:09 PM EDT	Flash Flood Warning	PHI	Burlington, Camden	4 hr
May 14, 3:24 PM EDT	Flash Flood Warning	PHI	Middlesex, Monmouth, Morris, Somerset	4 hr
May 14, 6:41 PM EDT	Marine Dense Fog Advisory	PHI		21 hr

Nearby

River Flood Warnings in New Jersey, 2025 Every river flood warning in 2025

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.