Alert archive / New Jersey / River Flood Warnings in 2021

River Flood Warning 6, NWS Philadelphia/Mount Holly

July 18, 2021Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Jul 18, 2021, 3:48 AM EDT for Mercer County, New Jersey. It took effect at Jul 18, 2021, 4:14 AM EDT. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Jul 18, 2021, 3:48 AM EDT (07:48 UTC)
In effect from
Jul 18, 2021, 4:14 AM EDT
Expired
Jul 18, 2021, 6:50 AM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
Minor

County Mercer County, NJ

The radar

The Philadelphia radar (KDIX), 42 km from the middle of the area, began a volume at 07:49 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 Assunpink Creek at Trenton (TACN4). The gauge peaked at 8.52 ft at Jul 18, 2021, 5:00 AM EDT.

actionminormoderate24681007/1807/19
Action stage
7 ft
Minor stage
8.5 ft
Moderate stage
9.5 ft
Major stage
11 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01464000, 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.

354 
WGUS41 KPHI 180748
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
348 AM EDT Sun Jul 18 2021

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

  Assunpink Creek At Trenton affecting Mercer County.

For the Assunpink Creek...including 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.


NJC021-181700-
/O.NEW.KPHI.FL.W.0006.210718T0814Z-210718T1700Z/
/TACN4.1.ER.210718T0814Z.210718T0900Z.210718T1100Z.UU/
348 AM EDT Sun Jul 18 2021

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the Assunpink Creek At Trenton.
* Until this afternoon.
* At 3:15 AM EDT Sunday the stage was 8.4 feet.
* Flood stage is 8.5 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage to a 
  crest of 8.6 feet early this morning. It will then fall below 
  flood stage this morning.
* Impact...At 6.5 feet, Assunpink Park floods. George Page Park 
  floods. Minor street flooding in Trenton.
* Impact...At 9.0 feet, Mulberry Street begins to flood.
* Flood History...This crest compares to a previous crest of 8.5 
  feet on 04/30/2014.

&&


               Fld   Observed           Forecasts (2 am EDT)     
Location       Stg   Stg   Day/Time     Mon   Tue   Wed          

Assunpink Creek
Trenton        8.5   8.4   Sun 3 am EDT 4.1   3.5   3.3          





&&

LAT...LON 4023 7479 4027 7472 4025 7469 4022 7468
      4018 7475 4021 7476

$$

Staarmann
1 follow-up statement
885 
WGUS81 KPHI 181050
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
650 AM EDT Sun Jul 18 2021

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

  Assunpink Creek At Trenton affecting Mercer County.

NJC021-181200-
/O.CAN.KPHI.FL.W.0006.000000T0000Z-210718T1050Z/
/TACN4.1.ER.210718T0800Z.210718T0830Z.210718T1100Z.UU/
650 AM EDT Sun Jul 18 2021

...The Flood Warning for the Assunpink Creek At Trenton has been 
cancelled...

The Flood Warning is cancelled for
  the Assunpink Creek At Trenton.
* At 6:15 AM EDT Sunday the stage was 8.0 feet.
* Flood stage is 8.5 feet.
* Forecast...The river is expected to rise to a crest of 8.5 feet 
  this morning.

&&


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

Assunpink Creek
Trenton        8.5   8.0   Sun 6 am EDT 3.9   3.4   Crested          





&&

LAT...LON 4023 7479 4027 7472 4025 7469 4022 7468
      4018 7475 4021 7476

$$

Staarmann

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 8:00 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Mercer, Monmouth45 min
Jul 17, 8:09 PM EDTFlash Flood WarningPHIMercer, Somerset4 hr
Jul 17, 8:35 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester40 min
Jul 17, 8:36 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean, Somerset54 min
Jul 17, 8:46 PM EDTSpecial Marine WarningPHI59 min
Jul 17, 8:53 PM EDTAreal Flood AdvisoryPHIMercer, Middlesex, Monmouth3 hr
Jul 17, 9:25 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Salem2 hr
Jul 17, 9:27 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem48 min
Jul 17, 9:30 PM EDTSevere Thunderstorm WarningPHICape May29 min
Jul 17, 9:36 PM EDTFlash Flood WarningPHICamden, Gloucester, Salem2 hr
Jul 17, 9:44 PM EDTSpecial Marine WarningPHI61 min
Jul 17, 9:48 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Mercer, Salem42 min
Jul 17, 10:21 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean54 min
Jul 17, 10:22 PM EDTTornado WarningPHIBurlington, Monmouth, Ocean23 min
Jul 17, 10:27 PM EDTSpecial Weather StatementPHIBurlington, Camden33 min
Jul 17, 10:38 PM EDTTornado WarningPHIBurlington, Monmouth, Ocean16 min
Jul 17, 10:43 PM EDTFlash Flood WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean79 min
Jul 17, 10:47 PM EDTSpecial Marine WarningPHI118 min
Jul 17, 10:51 PM EDTSpecial Marine WarningPHI114 min
Jul 17, 11:07 PM EDTSpecial Weather StatementPHIMiddlesex38 min
Jul 17, 11:08 PM EDTAreal Flood WarningPHIHunterdon12 hr
Jul 17, 11:11 PM EDTSpecial Weather StatementPHIMonmouth, Ocean34 min
Jul 17, 11:20 PM EDTSpecial Marine WarningPHI115 min
Jul 17, 11:26 PM EDTAreal Flood WarningPHISomerset10 hr
Jul 18, 2:41 AM EDTAreal Flood WarningPHIMercer4 hr
Jul 18, 9:08 AM EDTAreal Flood WarningPHISomerset2 hr
Jul 18, 11:03 AM EDTRiver Flood WarningPHIMiddlesex, Somerset88 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.