Alert archive / New Jersey / River Flood Warnings in 2021

River Flood Warning 86, NWS Philadelphia/Mount Holly

October 27, 2021Bucks County, Pennsylvania; Hunterdon County, Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Oct 27, 2021, 9:55 AM EDT for Bucks County, Pennsylvania; Hunterdon County, Mercer County, New Jersey. It took effect at Oct 27, 2021, 3:00 PM EDT. It was in force for 23 hr.

The area

The outline as issued.

The facts

Issued: Oct 27, 2021, 9:55 AM EDT (13:55 UTC)
In effect from: Oct 27, 2021, 3:00 PM EDT
Expired: Oct 28, 2021, 2:26 PM EDT
In force: 23 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

Counties Hunterdon County, NJ, Mercer County, NJ, Bucks County, PA

The radar

The Philadelphia radar (KDIX), 94 km from the middle of the area, began a volume at 13:57 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 Delaware River at Riegelsville (RGLN4). The gauge peaked at 21.40 ft at Oct 27, 2021, 8:00 PM EDT.

Action stage: 15 ft
Minor stage: 22 ft
Moderate stage: 26 ft
Major stage: 30 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01457500, 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.

983 
WGUS41 KPHI 271355
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
955 AM EDT Wed Oct 27 2021

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

  Delaware River At Riegelsville affecting Mercer, Hunterdon, and 
  Bucks Counties.

For the Delaware River...including Riegelsville...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.


NJC019-021-PAC017-280200-
/O.NEW.KPHI.FL.W.0086.211027T1900Z-211028T1826Z/
/RGLN4.1.ER.211027T1900Z.211028T0600Z.211028T1225Z.NO/
955 AM EDT Wed Oct 27 2021

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the Delaware River At Riegelsville.
* From this afternoon to early tomorrow afternoon.
* At 9:30 AM EDT Wednesday the stage was 17.9 feet.
* Flood stage is 22.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this afternoon to a crest of 24.4 feet just after midnight 
  tonight. It will then fall below flood stage tomorrow morning.
* Impact...At 14.5 feet, The entrance to Bull Island State Park is 
  closed. Unsafe to cross over to Treasure Island Scout Camp.
* Impact...At 15.0 feet, Treasure Island Scout Camp floods.
* Impact...At 18.0 feet, River Road floods in Pohatcong Township, 
  north of the bridge.
* Impact...At 22.0 feet, Pohatcong Creek floods Creek Road due to 
  high and backwater from the Delaware River. The Musconetcong River 
  also floods Mount Joy Road due to high and backwater from the 
  Delaware River.
* Flood History...This crest compares to a previous crest of 24.4 
  feet on 06/30/1973.

&&


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

Delaware River
Riegelsville    22.0  17.9 Wed 9 am   22.3 14.2       24.4 2am 10/28





&&

LAT...LON 4060 7524 4061 7517 4053 7504 4052 7513

$$

Meola

2 follow-up statements

717 
WGUS81 KPHI 272009
FLSPHI

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

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

  Delaware River Near Tocks Island affecting Northampton, Sussex, 
  Monroe, and Warren Counties.

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

  Delaware River At Riegelsville affecting Mercer, Hunterdon, and 
  Bucks Counties.

  Delaware River At Easton-Phillipsburg affecting Northampton, 
  Hunterdon, and Warren Counties.

For the Delaware River...including Tocks Island, Belvidere, 
Easton-Phillipsburg, Riegelsville, Frenchtown, Stockton, New 
Hope-Lambertville, Washington's Crossing, 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.


NJC019-021-PAC017-280815-
/O.EXT.KPHI.FL.W.0086.000000T0000Z-211028T1500Z/
/RGLN4.1.ER.211027T2321Z.211028T0600Z.211028T0900Z.NO/
409 PM EDT Wed Oct 27 2021

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

The Flood Warning continues for
  the Delaware River At Riegelsville.
* Until late tomorrow morning.
* At 2:30 PM EDT Wednesday the stage was 20.5 feet.
* Flood stage is 22.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  evening to a crest of 23.8 feet just after midnight tonight. It 
  will then fall below flood stage late tonight.
* Impact...At 14.5 feet, The entrance to Bull Island State Park is 
  closed. Unsafe to cross over to Treasure Island Scout Camp.
* Impact...At 15.0 feet, Treasure Island Scout Camp floods.
* Impact...At 18.0 feet, River Road floods in Pohatcong Township, 
  north of the bridge.
* Impact...At 22.0 feet, Pohatcong Creek floods Creek Road due to 
  high and backwater from the Delaware River. The Musconetcong River 
  also floods Mount Joy Road due to high and backwater from the 
  Delaware River.
* Flood History...This crest compares to a previous crest of 23.8 
  feet on 10/16/1955.

&&


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

Delaware River
Riegelsville    22.0  20.5 Wed 2 pm   17.7 13.3       23.8 2am 10/28





&&

LAT...LON 4060 7524 4061 7517 4053 7504 4052 7513

$$

NJC019-041-PAC095-280815-
/O.EXT.KPHI.FL.W.0085.000000T0000Z-211028T1822Z/
/ESTN4.1.ER.211027T2148Z.211028T0600Z.211028T1222Z.NO/
409 PM EDT Wed Oct 27 2021

...The Flood Warning is now in effect until early tomorrow 
afternoon...

The Flood Warning continues for
  the Delaware River At Easton-Phillipsburg.
* Until early tomorrow afternoon.
* At 3:30 PM EDT Wednesday the stage was 21.2 feet.
* Flood stage is 22.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this afternoon to a crest of 24.4 feet just after midnight 
  tonight. It will then fall below flood stage tomorrow morning.
* Impact...At 18.0 feet, Backwater from the Delaware causes flooding 
  in Easton along the Lehigh River
* Impact...At 20.0 feet, Minor flooding begins upstream in Harmony 
  Station New Jersey and Sandts Eddy Pennsylvania.
* Impact...At 24.0 feet, Larry Holmes Drive in Easton is subject to 
  flooding. Riverside Way in Phillipsburg is flooded in the area of 
  the boat ramp.
* Impact...At 25.0 feet, Portions of Bushkill Drive and Route 611 
  are flooded due to a combination of Delaware River flooding and 
  backwater effects on Bushkill Creek.
* Flood History...This crest compares to a previous crest of 25.2 
  feet on 08/29/2011.

&&


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

Delaware River
Easton-Phillips 22.0  21.2 Wed 3 pm   17.6 12.6       24.4 2am 10/28





&&

LAT...LON 4069 7524 4069 7516 4061 7517 4060 7524

$$

NJC037-041-PAC089-095-280600-
/O.EXT.KPHI.FL.W.0084.000000T0000Z-211028T0600Z/
/TKSN4.1.ER.211027T1200Z.211027T1745Z.211028T0000Z.NO/
409 PM EDT Wed Oct 27 2021

...The Flood Warning is now in effect until just after midnight 
tonight...

The Flood Warning continues for
  the Delaware River Near Tocks Island.
* Until just after midnight tonight.
* At 3:30 PM EDT Wednesday the stage was 22.0 feet.
* Flood stage is 21.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 3:30 PM EDT Wednesday was 22.2 feet.
* Forecast...The river is expected to fall below flood stage this 
  evening and continue falling to 11.6 feet early Saturday afternoon.
* Impact...At 21.0 feet, Approach roads to the Shawnee Inn flood. 
  Route 209 begins to flood.
* Impact...At 22.0 feet, Many local roads that connect to Route 209, 
  River Road, and other park roads are closed.
* Impact...At 23.0 feet, Route 209 is closed.
* Flood History...This crest compares to a previous crest of 21.8 
  feet on 05/30/1984.

&&


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

Delaware River
Tocks Island    21.0  22.0 Wed 3 pm   14.0 11.1        MSG  unknown





&&

LAT...LON 4108 7502 4110 7491 4097 7509 4083 7502
      4083 7512 4098 7518

$$

Fitzsimmons

961 
WGUS81 KPHI 280130
FLSPHI

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

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

  Delaware River At Riegelsville affecting Mercer, Hunterdon, and 
  Bucks Counties.

  Delaware River At Easton-Phillipsburg affecting Northampton, 
  Hunterdon, and Warren Counties.

  Delaware River Near Tocks Island affecting Northampton, Sussex, 
  Monroe, and Warren Counties.

NJC019-021-PAC017-280230-
/O.CAN.KPHI.FL.W.0086.000000T0000Z-211028T0130Z/
/RGLN4.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
930 PM EDT Wed Oct 27 2021

...The Flood Warning for the Delaware River At Riegelsville has been 
cancelled...

The Flood Warning is cancelled for
  the Delaware River At Riegelsville.
* At 8:30 PM EDT Wednesday the stage was 21.4 feet.
* Flood stage is 22.0 feet.
* Forecast...The river is expected to fall to 13.4 feet Saturday 
  evening.

&&


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

Delaware River
Riegelsville    22.0  21.4 Wed 8 pm   15.2 12.3        MSG  unknown





&&

LAT...LON 4060 7524 4061 7517 4053 7504 4052 7513

$$

NJC019-041-PAC095-280230-
/O.CAN.KPHI.FL.W.0085.000000T0000Z-211028T0130Z/
/ESTN4.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
930 PM EDT Wed Oct 27 2021

...The Flood Warning for the Delaware River At Easton-Phillipsburg 
has been cancelled...

The Flood Warning is cancelled for
  the Delaware River At Easton-Phillipsburg.
* At 8:30 PM EDT Wednesday the stage was 21.4 feet.
* Flood stage is 22.0 feet.
* Forecast...The river is expected to fall to 12.7 feet Saturday 
  evening.

&&


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

Delaware River
Easton-Phillips 22.0  21.4 Wed 8 pm   14.7 11.6        MSG  unknown





&&

LAT...LON 4069 7524 4069 7516 4061 7517 4060 7524

$$

NJC037-041-PAC089-095-280230-
/O.CAN.KPHI.FL.W.0084.000000T0000Z-211028T0130Z/
/TKSN4.1.ER.211027T1200Z.211027T1745Z.211027T2231Z.NO/
930 PM EDT Wed Oct 27 2021

...The Flood Warning for the Delaware River Near Tocks Island has 
been cancelled...

The Flood Warning is cancelled for
  the Delaware River Near Tocks Island.
* At 8:15 PM EDT Wednesday the stage was 20.1 feet.
* Flood stage is 21.0 feet.
* Forecast...The river is expected to fall to 12.7 feet Saturday 
  evening.

&&


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

Delaware River
Tocks Island    21.0  20.1 Wed 8 pm   12.7 10.6        MSG  unknown





&&

LAT...LON 4108 7502 4110 7491 4097 7509 4083 7502
      4083 7512 4098 7518

$$

Fitzsimmons

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 27, 4:26 AM EDT	River Flood Warning	PHI	Monroe, Northampton	26 hr
Oct 27, 4:26 AM EDT	River Flood Warning	PHI	Northampton	38 hr
Oct 27, 5:08 PM EDT	Coastal Flood Advisory	PHI	Bucks, Delaware, Philadelphia	34 hr
Oct 26, 8:18 PM EDT	Coastal Flood Advisory	PHI	Atlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean	21 hr
Oct 26, 9:24 PM EDT	Areal Flood Warning	PHI	Somerset	2 hr
Oct 26, 11:23 PM EDT	Areal Flood Advisory	PHI	Middlesex, Monmouth, Ocean	5 hr
Oct 27, 12:12 AM EDT	River Flood Warning	PHI	Essex, Morris, Passaic	5 days
Oct 27, 2:59 AM EDT	Areal Flood Warning	PHI	Sussex, Warren	11 hr
Oct 27, 11:54 AM EDT	Small Craft Advisory	PHI		42 hr

Nearby

River Flood Warnings in New Jersey, 2021 River Flood Warnings in Pennsylvania, 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.