Alert archive / New Jersey / River Flood Warnings in 2024

River Flood Warning 83, NWS Philadelphia/Mount Holly

April 3, 2024Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Apr 3, 2024, 5:52 PM EDT for Somerset County, New Jersey. It took effect at Apr 4, 2024, 12:40 AM EDT. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued: Apr 3, 2024, 5:52 PM EDT (21:52 UTC)
In effect from: Apr 4, 2024, 12:40 AM EDT
Expired: Apr 4, 2024, 2:12 AM EDT
In force: 92 min
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 21:54 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 8.84 ft at Apr 4, 2024, 12:00 AM 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.

460 
WGUS41 KPHI 032152
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
552 PM EDT Wed Apr 3 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 Thursday morning at 600 AM EDT.

&&

NJC035-041000-
/O.NEW.KPHI.FL.W.0083.240404T0440Z-240404T1243Z/
/RRTN4.1.ER.240404T0440Z.240404T0600Z.240404T0642Z.NO/
552 PM EDT Wed Apr 3 2024

...FLOOD WARNING IN EFFECT FROM LATE TONIGHT TO TOMORROW MORNING...

* WHAT...Minor flooding is forecast.

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

* WHEN...From late tonight 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 Wednesday the stage was 7.9 feet.
  - Forecast...The river is expected to rise above flood stage
    just after midnight tonight to a crest of 10.2 feet. It will
    then fall below flood stage overnight.
  - Flood stage is 10.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.2 feet on 06/22/1972.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (8 pm)        Crest
Location        Stg   Stg Day/Time    Thu  Fri        Stg Time Date

North Branch Rar
Raritan         10.0  7.9  Wed 5 pm   5.2  4.0        10.2 2am 4/04


&&

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


$$

Kruzdlo

1 follow-up statement

165 
WGUS81 KPHI 040612
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
212 AM EDT Thu Apr 4 2024

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

  North Branch Raritan River At Raritan affecting Somerset County.



NJC035-040715-
/O.CAN.KPHI.FL.W.0083.000000T0000Z-240404T0612Z/
/RRTN4.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
212 AM EDT Thu Apr 4 2024

...FLOOD WARNING IS CANCELLED...

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

* ADDITIONAL DETAILS...
  - At 2:00 AM EDT Thursday the stage was 8.6 feet and falling.
  - A separate Flood Warning remains in effect for areas around
    South Branch.
  - Forecast...The river is expected to fall to 3.7 feet Saturday
    evening.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (2 am)        Crest
Location        Stg   Stg Day/Time    Fri  Sat        Stg Time Date

North Branch Rar
Raritan         10.0  8.6  Thu 2 am   4.7  3.9        Crested   


&&

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


$$

MJL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 7:35 AM EDT	Areal Flood Warning	PHI	Hunterdon	3 hr
Apr 3, 11:14 AM EDT	River Flood Warning	PHI	Somerset	48 hr
Apr 3, 11:15 AM EDT	River Flood Warning	PHI	Burlington	69 hr
Apr 3, 2:00 PM EDT	Areal Flood Warning	PHI	Hunterdon, Somerset	10 hr
Apr 3, 2:52 PM EDT	Marine Dense Fog Advisory	PHI		5 hr
Apr 3, 4:27 PM EDT	Areal Flood Warning	PHI	Somerset	19 hr
Apr 3, 5:08 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Middlesex, Monmouth, Ocean	43 min
Apr 3, 5:41 PM EDT	Special Marine Warning	PHI		64 min
Apr 3, 5:46 PM EDT	River Flood Warning	PHI	Essex, Morris, Passaic	5 days
Apr 3, 5:49 PM EDT	River Flood Warning	PHI	Morris	45 hr
Apr 3, 5:53 PM EDT	River Flood Warning	PHI	Middlesex, Somerset	23 hr
Apr 3, 5:57 PM EDT	Areal Flood Warning	PHI	Morris, Somerset	5 hr
Apr 3, 6:30 PM EDT	Special Weather Statement	PHI	Atlantic	30 min
Apr 3, 7:01 PM EDT	Special Weather Statement	PHI	Atlantic	29 min
Apr 3, 7:14 PM EDT	Coastal Flood Advisory	PHI	Atlantic, Cape May	10 hr
Apr 3, 7:24 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	51 min
Apr 3, 7:28 PM EDT	Special Marine Warning	PHI		62 min

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.