Alert archive / New Jersey / River Flood Warnings in 2021

River Flood Warning 80, NWS Philadelphia/Mount Holly

October 26, 2021Morris County, Passaic County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Oct 26, 2021, 4:28 PM EDT for Morris County, Passaic County, New Jersey. It took effect at Oct 26, 2021, 8:00 PM EDT. It was in force for 26 hr.

The area

The outline as issued.

The facts

Issued: Oct 26, 2021, 4:28 PM EDT (20:28 UTC)
In effect from: Oct 26, 2021, 8:00 PM EDT
Expired: Oct 27, 2021, 9:47 PM EDT
In force: 26 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

Counties Morris County, NJ, Passaic County, NJ

The radar

The Philadelphia radar (KDIX), 117 km from the middle of the area, began a volume at 20:31 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 Pequannock River at Macopin (MCPN4). The gauge peaked at 5.59 ft at Oct 27, 2021, 8:00 AM EDT.

Action stage: 5 ft
Minor stage: 5.5 ft
Moderate stage: 6.5 ft
Major stage: 7.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01382500, 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.

972 
WGUS41 KPHI 262028
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
428 PM EDT Tue Oct 26 2021

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

  Pequannock River Below Macopin Dam affecting Morris and Passaic 
  Counties.

For the Pequannock River...including Macopin Dam...minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

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


NJC027-031-270830-
/O.NEW.KPHI.FL.W.0080.211027T0000Z-211028T2100Z/
/MCPN4.1.ER.211027T0000Z.211027T1200Z.211028T1500Z.NO/
428 PM EDT Tue Oct 26 2021

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the Pequannock River Below Macopin Dam.
* From this evening to Thursday afternoon.
* At 4:10 PM EDT Tuesday the river level was 4.9 feet.
* Flood stage is 5.5 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  evening to a crest of 6.3 feet Wednesday morning. It will then 
  fall below flood stage late Thursday morning.
* Impact...At 5.5 feet, Road closures begin in both Butler and 
  Bloomingdale due to flooding.
* Impact...At 6.5 feet, Both Main Streets in Butler and Bloomingdale 
  flood. Several commercial properties are also flooded. The Hamburg 
  Turnpike experiences significant flooding. Flooding expands to the 
  east side of Bloomingdale. Sloan Park is flooded.
* Flood History...This crest compares to a previous crest of 6.3 
  feet on 03/25/2003.

&&


Stream          Fld   Observed        Fcsts (2 pm)        Crest
Location        Stg   Stg Day/Time    Wed  Thu        Stg Time Date

Pequannock River
Macopin Dam     5.5   4.9  Tue 4 pm   6.3  5.4        6.3 8am 10/27





&&

LAT...LON 4101 7430 4101 7428 4097 7430 4097 7433
      4099 7441 4104 7438

$$

Iovino

4 follow-up statements

230 
WGUS81 KPHI 270154
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
954 PM EDT Tue Oct 26 2021

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

  Pequannock River Below Macopin Dam affecting Morris and Passaic 
  Counties.

For the Pequannock River...including Macopin Dam...minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

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


NJC027-031-271400-
/O.EXT.KPHI.FL.W.0080.000000T0000Z-211028T1300Z/
/MCPN4.1.ER.211027T0346Z.211027T1700Z.211028T0700Z.NO/
954 PM EDT Tue Oct 26 2021

...The Flood Warning is now in effect until late Thursday morning...

The Flood Warning continues for
  the Pequannock River Below Macopin Dam.
* Until late Thursday morning.
* At 9:40 PM EDT Tuesday the river level was 5.3 feet.
* Flood stage is 5.5 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage 
  overnight to a crest of 6.0 feet early Wednesday afternoon. It 
  will then fall below flood stage early Thursday morning.
* Impact...At 5.5 feet, Road closures begin in both Butler and 
  Bloomingdale due to flooding.
* Impact...At 6.5 feet, Both Main Streets in Butler and Bloomingdale 
  flood. Several commercial properties are also flooded. The Hamburg 
  Turnpike experiences significant flooding. Flooding expands to the 
  east side of Bloomingdale. Sloan Park is flooded.
* Flood History...This crest compares to a previous crest of 6.0 
  feet on 09/02/2021.

&&


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

Pequannock River
Macopin Dam     5.5   5.3  Tue 9 pm   5.9  4.8        6.0 1pm 10/27





&&

LAT...LON 4101 7430 4101 7428 4097 7430 4097 7433
      4099 7441 4104 7438

$$

Iovino

395 
WGUS81 KPHI 270817
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
417 AM EDT Wed Oct 27 2021

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

  Pequannock River Below Macopin Dam affecting Morris and Passaic 
  Counties.

For the Pequannock River...including Macopin Dam...Minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

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


NJC027-031-272030-
/O.EXT.KPHI.FL.W.0080.000000T0000Z-211028T1200Z/
/MCPN4.1.ER.211027T0650Z.211027T1200Z.211028T0600Z.NO/
417 AM EDT Wed Oct 27 2021

...The Flood Warning is now in effect until tomorrow morning...

The Flood Warning continues for
  the Pequannock River Below Macopin Dam.
* Until tomorrow morning.
* At 3:55 AM EDT Wednesday the stage was 5.6 feet.
* Flood stage is 5.5 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 3:55 AM EDT Wednesday was 5.6 feet.
* Forecast...The river is expected to rise to a crest of 5.7 feet 
  this morning. It will then fall below flood stage just after 
  midnight tonight.
* Impact...At 5.5 feet, Road closures begin in both Butler and 
  Bloomingdale due to flooding.
* Flood History...This crest compares to a previous crest of 5.7 
  feet on 04/17/2011.

&&


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

Pequannock River
Macopin Dam     5.5   5.6  Wed 3 am   5.5  4.5        5.7 8am 10/27





&&

LAT...LON 4101 7430 4101 7428 4097 7430 4097 7433
      4099 7441 4104 7438

$$

SFJ

450 
WGUS81 KPHI 271420
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
1020 AM EDT Wed Oct 27 2021

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

  Pequannock River Below Macopin Dam affecting Morris and Passaic 
  Counties.

For the Pequannock River...including Macopin Dam...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.


NJC027-031-280230-
/O.EXT.KPHI.FL.W.0080.000000T0000Z-211028T0700Z/
/MCPN4.1.ER.211027T0650Z.211027T1410Z.211028T0100Z.NO/
1020 AM EDT Wed Oct 27 2021

...The Flood Warning is now in effect until late tonight...

The Flood Warning continues for
  the Pequannock River Below Macopin Dam.
* Until late tonight.
* At 10:10 AM EDT Wednesday the stage was 5.7 feet.
* Flood stage is 5.5 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 10:10 AM EDT Wednesday was 5.7 feet.
* Forecast...The river is expected to fall below flood stage late 
  this evening and continue falling to 4.1 feet Saturday morning.
* Impact...At 5.5 feet, Road closures begin in both Butler and 
  Bloomingdale due to flooding.
* Impact...At 6.5 feet, Both Main Streets in Butler and Bloomingdale 
  flood. Several commercial properties are also flooded. The Hamburg 
  Turnpike experiences significant flooding. Flooding expands to the 
  east side of Bloomingdale. Sloan Park is flooded.
* Flood History...This crest compares to a previous crest of 5.7 
  feet on 04/17/2011.

&&


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

Pequannock River
Macopin Dam     5.5   5.7  Wed 10 a   5.1  4.0           Cresting   





&&

LAT...LON 4101 7430 4101 7428 4097 7430 4097 7433
      4099 7441 4104 7438

$$

Meola

900 
WGUS81 KPHI 280147
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
947 PM EDT Wed Oct 27 2021

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

  Pequannock River Below Macopin Dam affecting Morris and Passaic 
  Counties.

NJC027-031-280300-
/O.CAN.KPHI.FL.W.0080.000000T0000Z-211028T0147Z/
/MCPN4.1.ER.211027T0650Z.211027T1410Z.211028T0120Z.NO/
947 PM EDT Wed Oct 27 2021

...The Flood Warning for the Pequannock River Below Macopin Dam has 
been cancelled...

The Flood Warning is cancelled for
  the Pequannock River Below Macopin Dam.
* At 9:25 PM EDT Wednesday the stage was 5.5 feet.
* Flood stage is 5.5 feet.
* Forecast...The river is expected to fall to 5.1 feet Saturday 
  evening.

&&


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

Pequannock River
Macopin Dam     5.5   5.5  Wed 9 pm   4.7  3.4         MSG  unknown





&&

LAT...LON 4101 7430 4101 7428 4097 7430 4097 7433
      4099 7441 4104 7438

$$

Fitzsimmons

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 25, 8:26 PM EDT	Special Weather Statement	PHI	Mercer	34 min
Oct 25, 8:33 PM EDT	Special Weather Statement	PHI	Warren	42 min
Oct 25, 9:09 PM EDT	Special Weather Statement	PHI	Middlesex, Morris, Somerset	51 min
Oct 26, 1:22 AM EDT	Areal Flood Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Ocean	5 hr
Oct 26, 2:08 AM EDT	Flash Flood Warning	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean	4 hr
Oct 26, 3:08 AM EDT	Flash Flood Warning	PHI	Middlesex, Monmouth, Ocean	8 hr
Oct 26, 4:14 AM EDT	Flash Flood Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	4 hr
Oct 26, 5:22 AM EDT	Areal Flood Advisory	PHI	Morris, Sussex, Warren	2 hr
Oct 26, 6:09 AM EDT	Areal Flood Warning	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean	3 hr
Oct 26, 6:18 AM EDT	Areal Flood Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	13 hr
Oct 26, 7:15 AM EDT	Areal Flood Warning	PHI	Monmouth, Ocean	5 hr
Oct 26, 7:32 AM EDT	River Flood Warning	PHI	Somerset	28 hr
Oct 26, 7:38 AM EDT	Areal Flood Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	37 hr
Oct 26, 8:07 AM EDT	Areal Flood Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	12 hr
Oct 26, 8:18 AM EDT	River Flood Warning	PHI	Morris, Somerset	8 hr
Oct 26, 10:12 AM EDT	River Flood Warning	PHI	Somerset	11 hr
Oct 26, 10:12 AM EDT	River Flood Warning	PHI	Middlesex, Somerset	24 hr
Oct 26, 10:12 AM EDT	River Flood Warning	PHI	Middlesex, Somerset	33 hr
Oct 26, 10:50 AM EDT	Areal Flood Warning	PHI	Middlesex, Monmouth, Ocean	9 hr
Oct 26, 4:24 PM EDT	River Flood Warning	PHI	Morris	31 hr
Oct 26, 4:39 PM EDT	River Flood Warning	PHI	Essex, Morris, Passaic	54 hr
Oct 26, 4:39 PM EDT	River Flood Warning	PHI	Essex, Passaic	42 hr

Nearby

River Flood Warnings in New Jersey, 2021 Every river flood warning in 2021

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.