Alert archive / New Jersey / River Flood Warnings in 2022

River Flood Warning 13, NWS Philadelphia/Mount Holly

April 8, 2022Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Apr 8, 2022, 5:53 AM EDT for Somerset County, New Jersey. It was in force for 23 hr.

The area

The outline as issued.

The facts

Issued
Apr 8, 2022, 5:53 AM EDT (09:53 UTC)
Expired
Apr 9, 2022, 4:47 AM EDT
In force
23 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
Moderate

County Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 61 km from the middle of the area, began a volume at 09:55 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 Millstone River at Blackwells Mills (BKWN4). The gauge peaked at 10.84 ft at Apr 8, 2022, 3:00 PM EDT.

actionminormoderate468101204/0804/0904/10
Action stage
7 ft
Minor stage
9 ft
Moderate stage
10 ft
Major stage
15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01402000, 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.

237 
WGUS41 KPHI 080953
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
553 AM EDT Fri Apr 8 2022

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

  Millstone River At Blackwells Mills affecting Somerset County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Stay tuned to further developments by listening to your local radio, 
television, or NOAA Weather Radio for further information.

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

The next statement will be issued this evening by 600 PM EDT.

&&


NJC035-082200-
/O.NEW.KPHI.FL.W.0013.220408T0953Z-220409T1500Z/
/BKWN4.2.ER.220408T0812Z.220408T1800Z.220409T0900Z.NO/
553 AM EDT Fri Apr 8 2022

...FLOOD WARNING IN EFFECT FROM EARLY THIS MORNING TO LATE TOMORROW 
MORNING...

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

* WHERE...Millstone River At Blackwells Mills.

* WHEN...From early this morning to late tomorrow morning.

* IMPACTS...At 6.0 feet, The Griggstown Causeway is closed due to 
  flooding.
  At 7.0 feet, Several more causeways are closed due to flooding.
  At 9.0 feet, Flood stage reached with flooding now along River 
  Road in Blackwells Mills and S. River Street in Millstone. Base of 
  Route 533 bridge floods. River Road between Yorktown and Amsterdam 
  is subject to closure. Canal Road near Suydam Road floods.
  At 10.0 feet, The D&R Canal is flooded by the Millstone River.

* ADDITIONAL DETAILS...
  - At 5:15 AM EDT Friday the stage was 9.5 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 5:15 AM EDT Friday was 9.5 feet.
  - Forecast...The river is expected to rise to a crest of 10.2
    feet this afternoon. It will then fall below flood stage late
    tonight.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.5 feet on 03/22/1999.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (8 am)        Crest
Location        Stg   Stg Day/Time    Sat  Sun        Stg Time Date

Millstone River
Blackwells Mill 9.0   9.5  Fri 5 am   8.6  5.3        10.2 2pm 4/08


&&

LAT...LON 4045 7463 4048 7461 4055 7460 4054 7453
      4046 7454 4043 7456


$$

Davis
2 follow-up statements
577 
WGUS81 KPHI 082156
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
556 PM EDT Fri Apr 8 2022

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

  Millstone River At Blackwells Mills affecting Somerset County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Stay tuned to further developments by listening to your local radio, 
television, or NOAA Weather Radio for further information.

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

The next statement will be issued Saturday morning at 700 AM EDT.

&&


NJC035-091000-
/O.EXT.KPHI.FL.W.0013.000000T0000Z-220409T1100Z/
/BKWN4.2.ER.220408T0812Z.220408T1800Z.220409T0900Z.NO/
556 PM EDT Fri Apr 8 2022

...FLOOD WARNING NOW IN EFFECT UNTIL SATURDAY MORNING...

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

* WHERE...Millstone River At Blackwells Mills.

* WHEN...Until Saturday morning.

* IMPACTS...At 6.0 feet, The Griggstown Causeway is closed due to 
  flooding.
  At 7.0 feet, Several more causeways are closed due to flooding.
  At 9.0 feet, Flood stage reached with flooding now along River 
  Road in Blackwells Mills and S. River Street in Millstone. Base of 
  Route 533 bridge floods. River Road between Yorktown and Amsterdam 
  is subject to closure. Canal Road near Suydam Road floods.
  At 10.0 feet, The D&R Canal is flooded by the Millstone River.

* ADDITIONAL DETAILS...
  - At 5:15 AM EDT Friday the stage was 9.5 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 5:45 PM EDT Friday was 10.8 feet. The river stage
    has crested and is beginning to fall.
  - Forecast...The river is expected to continue falling
    overnight. It will then fall below flood stage early Saturday
    morning.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of
    10.5 feet on 03/22/1999.
  - http://www.weather.gov/safety/flood

&&

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

Millstone River
Blackwells Mill 9.0  10.8  Fri 5 pm   7.6  4.5        10.8 2pm 4/08


&&

LAT...LON 4045 7463 4048 7461 4055 7460 4054 7453
      4046 7454 4043 7456


$$

Staarmann
015 
WGUS81 KPHI 090847
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
447 AM EDT Sat Apr 9 2022

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

  Millstone River At Blackwells Mills affecting Somerset County.

NJC035-091000-
/O.CAN.KPHI.FL.W.0013.000000T0000Z-220409T0847Z/
/BKWN4.2.ER.220408T0812Z.220408T1930Z.220409T0755Z.NO/
447 AM EDT Sat Apr 9 2022

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Millstone River At Blackwells Mills.

* ADDITIONAL DETAILS...
  - At 4:15 AM EDT Saturday the stage was 8.9 feet.
  - The Millstone River crested at 10.84 feet around 2:30 pm
    Friday afternoon and then fell below minor flood stage at 4
    am Saturday.
  - Forecast...The river is expected to fall to 3.1 feet early
    Tuesday morning.
  - http://www.weather.gov/safety/flood

&&

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

Millstone River
Blackwells Mill 9.0   8.9  Sat 4 am   7.4  4.9         MSG  unknown


&&

LAT...LON 4045 7463 4048 7461 4055 7460 4054 7453
      4046 7454 4043 7456


$$

Davis

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 8:20 PM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset, Sussex, Warren3 hr
Apr 7, 8:46 PM EDTAreal Flood AdvisoryPHIMiddlesex, Morris, Somerset3 hr
Apr 7, 9:29 PM EDTAreal Flood WarningPHISomerset4 hr
Apr 7, 9:37 PM EDTAreal Flood WarningPHIMorris11 hr
Apr 7, 10:55 PM EDTAreal Flood WarningPHIWarren57 hr
Apr 7, 10:57 PM EDTRiver Flood WarningPHIMorris, Passaic35 hr
Apr 7, 11:02 PM EDTRiver Flood WarningPHIMorris63 hr
Apr 7, 11:08 PM EDTRiver Flood WarningPHISomerset15 hr
Apr 7, 11:10 PM EDTRiver Flood WarningPHIMiddlesex, Somerset23 hr
Apr 7, 11:11 PM EDTRiver Flood WarningPHIMiddlesex, Somerset20 hr
Apr 7, 11:23 PM EDTRiver Flood WarningPHIHunterdon, Somerset14 hr
Apr 8, 12:17 AM EDTRiver Flood WarningPHIBergen, Morris, Passaic12 hr
Apr 8, 12:18 AM EDTRiver Flood WarningPHIMorris, Passaic18 hr
Apr 8, 3:29 AM EDTAreal Flood WarningPHISussex, Warren19 hr
Apr 8, 10:29 AM EDTRiver Flood WarningPHIEssex, Morris, Passaic5 days
Apr 8, 10:29 AM EDTRiver Flood WarningPHIEssex, Morris, Passaic4 days
Apr 8, 10:29 AM EDTRiver Flood WarningPHIEssex, Passaic3 days
Apr 8, 12:08 PM EDTRiver Flood WarningPHISussex, Warren17 hr
Apr 8, 1:37 PM EDTAreal Flood WarningPHISussex27 hr
Apr 8, 2:13 PM EDTAreal Flood WarningPHIWarren7 hr
Apr 8, 2:49 PM EDTRiver Flood WarningPHIHunterdon, Warren20 hr
Apr 8, 2:50 PM EDTRiver Flood WarningPHIHunterdon, Mercer20 hr

Nearby

River Flood Warnings in New Jersey, 2022Every river flood warning in 2022

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.