Alert archive / New Jersey / River Flood Warnings in 2021

River Flood Warning 18, NWS Philadelphia/Mount Holly

August 23, 2021Hunterdon County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Aug 23, 2021, 7:20 AM EDT for Hunterdon County, Somerset County, New Jersey. It took effect at Aug 23, 2021, 7:42 AM EDT. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Aug 23, 2021, 7:20 AM EDT (11:20 UTC)
In effect from
Aug 23, 2021, 7:42 AM EDT
Expired
Aug 23, 2021, 2:14 PM EDT
In force
7 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
Minor

Counties Hunterdon County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 11:20 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 South Branch Raritan River at Stanton (STTN4). The gauge peaked at 8.54 ft at Aug 23, 2021, 10:00 AM EDT.

actionminormoderate51008/2308/24
Action stage
7 ft
Minor stage
8 ft
Moderate stage
10 ft
Major stage
12 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01397000, 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.

566 
WGUS41 KPHI 231120
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
720 AM EDT Mon Aug 23 2021

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

  South Branch Raritan River At Stanton affecting Somerset and 
  Hunterdon Counties.

For the Raritan River...including Stanton...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.


NJC019-035-232330-
/O.NEW.KPHI.FL.W.0018.210823T1142Z-210824T0600Z/
/STTN4.1.ER.210823T1142Z.210823T1800Z.210824T0000Z.NO/
720 AM EDT Mon Aug 23 2021

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the South Branch Raritan River At Stanton.
* Until late tonight.
* At 7:15 AM EDT Monday the stage was 7.9 feet.
* Flood stage is 8.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  morning to a crest of 8.9 feet this afternoon. It will then fall 
  below flood stage this evening.
* Impact...At 5.0 feet, Minor low land flooding downstream of gauge.
* Impact...At 8.0 feet, Right bank and approach to bridge is flooded.
* Flood History...This crest compares to a previous crest of 8.9 
  feet on 12/01/2020.

&&


  Fld   Observed           Forecasts (8 am EDT)
Location                  Stg   Stg   Day/Time     Tue   Wed   Thu

South Branch Raritan River
Stanton                   8.0   7.9   Mon 7 am EDT 6.5   4.7   MSG





&&

LAT...LON 4061 7496 4063 7488 4055 7481 4053 7474
      4046 7475 4050 7487

$$

Kruzdlo
2 follow-up statements
601 
WGUS81 KPHI 231551
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
1151 AM EDT Mon Aug 23 2021

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

  South Branch Raritan River At Stanton affecting Somerset and 
  Hunterdon Counties.

For the Raritan River...including Stanton...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.


NJC019-035-240400-
/O.CON.KPHI.FL.W.0018.000000T0000Z-210824T0600Z/
/STTN4.1.ER.210823T1141Z.210823T1415Z.210823T1920Z.NO/
1151 AM EDT Mon Aug 23 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the South Branch Raritan River At Stanton.
* Until late tonight.
* At 11:30 AM EDT Monday the stage was 8.3 feet.
* Flood stage is 8.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 11:30 AM EDT Monday was 8.6 feet.
* Forecast...The river is expected to fall below flood stage late 
  this afternoon and continue falling to 4.0 feet Thursday morning.
* Impact...At 5.0 feet, Minor low land flooding downstream of gauge.
* Impact...At 8.0 feet, Right bank and approach to bridge is flooded.
* Flood History...This crest compares to a previous crest of 8.3 
  feet on 12/25/2020.

&&


  Fld   Observed           Forecasts (2 pm EDT)
Location                  Stg   Stg   Day/Time     Tue   Wed   Thu

South Branch Raritan River
Stanton                   8.0   8.3   Mon 11 am ED 5.6   4.3   MSG





&&

LAT...LON 4061 7496 4063 7488 4055 7481 4053 7474
      4046 7475 4050 7487

$$

Kruzdlo
693 
WGUS81 KPHI 231814
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
214 PM EDT Mon Aug 23 2021

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

  South Branch Raritan River At Stanton affecting Somerset and 
  Hunterdon Counties.

NJC019-035-231915-
/O.CAN.KPHI.FL.W.0018.000000T0000Z-210823T1814Z/
/STTN4.1.ER.210823T1141Z.210823T1415Z.210823T1611Z.NO/
214 PM EDT Mon Aug 23 2021

...The Flood Warning for the South Branch Raritan River At Stanton 
has been cancelled...

The Flood Warning is cancelled for
  the South Branch Raritan River At Stanton.
* At 2:00 PM EDT Monday the stage was 6.9 feet.
* Flood stage is 8.0 feet.
* Forecast...The river will continue to fall through Wednesday.

&&


  Fld   Observed           Forecasts (2 pm EDT)
Location                  Stg   Stg   Day/Time     Tue   Wed   Thu

South Branch Raritan River
Stanton                   8.0   6.9   Mon 2 pm EDT 5.6   4.3   MSG





&&

LAT...LON 4061 7496 4063 7488 4055 7481 4053 7474
      4046 7475 4050 7487

$$

Kruzdlo

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 8:11 PM EDTAreal Flood AdvisoryPHIWarren6 hr
Aug 22, 8:47 PM EDTFlash Flood WarningPHISussex, Warren6 hr
Aug 22, 11:27 PM EDTAreal Flood WarningPHIMiddlesex29 hr
Aug 23, 2:09 AM EDTRiver Flood WarningPHIMorris, Passaic17 hr
Aug 23, 3:25 AM EDTAreal Flood WarningPHIMorris8 hr
Aug 23, 4:10 AM EDTRiver Flood WarningPHIMorris41 hr
Aug 23, 5:07 AM EDTAreal Flood WarningPHIWarren21 hr
Aug 23, 5:22 AM EDTAreal Flood WarningPHISomerset9 hr
Aug 23, 5:44 AM EDTAreal Flood WarningPHIHunterdon7 hr
Aug 23, 7:47 AM EDTRiver Flood WarningPHIMorris, Passaic13 hr
Aug 23, 8:36 AM EDTAreal Flood WarningPHISomerset9 hr
Aug 23, 8:42 AM EDTRiver Flood WarningPHIMiddlesex, Somerset21 hr
Aug 23, 11:22 AM EDTRiver Flood WarningPHIMiddlesex, Somerset16 hr
Aug 23, 11:32 AM EDTRiver Flood WarningPHIEssex, Morris, Passaic5 days
Aug 23, 11:58 AM EDTRiver Flood WarningPHISomerset15 hr
Aug 23, 12:19 PM EDTRiver Flood WarningPHIBurlington33 hr
Aug 23, 12:51 PM EDTCoastal Flood StatementPHIOcean3 hr
Aug 23, 2:26 PM EDTAreal Flood WarningPHISussex14 hr
Aug 23, 2:26 PM EDTSpecial Weather StatementPHIOcean49 min
Aug 23, 3:12 PM EDTSpecial Weather StatementPHIOcean33 min
Aug 23, 3:15 PM EDTSevere Thunderstorm WarningPHIOcean45 min
Aug 23, 3:18 PM EDTSpecial Marine WarningPHI57 min
Aug 23, 3:38 PM EDTRiver Flood WarningPHIEssex, Morris, Passaic48 hr
Aug 23, 4:47 PM EDTSpecial Weather StatementPHIAtlantic28 min
Aug 23, 4:50 PM EDTSpecial Marine WarningPHI55 min
Aug 23, 5:13 PM EDTSpecial Weather StatementPHICamden32 min
Aug 23, 5:39 PM EDTSpecial Marine WarningPHI33 min
Aug 23, 6:46 PM EDTSpecial Marine WarningPHI64 min

Nearby

River Flood Warnings in New Jersey, 2021Every 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.