Alert archive / New Jersey / River Flood Warnings in 2018

River Flood Warning 98, NWS Philadelphia/Mount Holly

December 21, 2018Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 21, 2018, 6:30 AM EST for Mercer County, New Jersey. It took effect at Dec 21, 2018, 1:00 PM EST. It was in force for .

The area

The outline as issued.

The facts

Issued
Dec 21, 2018, 6:30 AM EST (11:30 UTC)
In effect from
Dec 21, 2018, 1:00 PM EST
Expired
Dec 21, 2018, 11:21 AM EST
In force
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 11:31 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 Assunpink Creek at Trenton (TACN4). The gauge peaked at 5.93 ft at Dec 21, 2018, 1:00 PM EST.

actionminormoderate4681012/2112/22
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.

442 
WGUS41 KPHI 211130
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mt Holly NJ
630 AM EST Fri Dec 21 2018

...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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas. The water may be
deeper than you think.

&&

NJC021-211729-
/O.NEW.KPHI.FL.W.0098.181221T1800Z-181222T0000Z/
/TACN4.1.ER.181221T1800Z.181221T1800Z.181221T1800Z.UU/
630 AM EST Fri Dec 21 2018

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The Assunpink Creek at Trenton.
* from this afternoon to this evening...Or until the warning is cancelled.
* At 6:15 AM Friday the stage was 5.5 feet.
* Flood stage is 8.5 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to near flood stage this afternoon.
* Impact...At 9.0 feet...Mulberry Street begins to flood.
* Flood history...This crest compares to a previous crest of 8.5 feet on Apr 30 
  2014.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Assunpink Creek
  Trenton                8.5    5.50  Fri 6 AM     8.5    Fri 1 PM 
 
&&
 
LAT...LON 4023 7479 4027 7472 4025 7469 4022 7468
      4018 7475 4021 7476             

$$
1 follow-up statement
837 
WGUS81 KPHI 211621
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
1121 AM EST Fri Dec 21 2018

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

  Assunpink Creek At Trenton affecting Mercer County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas. 
The water may be deeper than you think.

&&

NJC021-211651-
/O.CAN.KPHI.FL.W.0098.000000T0000Z-181222T0000Z/
/TACN4.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.UU/
1121 AM EST Fri Dec 21 2018

The Flood Warning is cancelled for
  The Assunpink Creek at Trenton.
* At 10:15 AM Friday the stage was 5.9 feet.
* Flood stage is 8.5 feet.
* Forecast...The river will crest below flood stage this afternoon.
* Impact...At 9.0 feet...Mulberry Street begins to flood.
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG   DAY TIME     CREST

Assunpink Creek
  Trenton                8.5    5.88  Fri 10 AM    Will crest below  
                                                   flood stage 
 
&&
 
LAT...LON 4023 7479 4027 7472 4025 7469 4022 7468
      4018 7475 4021 7476             

$$

Kruzdlo

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 21, 4:09 AM ESTAreal Flood WarningPHIHunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more16 hr
Dec 21, 4:27 AM ESTAreal Flood WarningPHISussex, Warren8 hr
Dec 21, 4:36 AM ESTAreal Flood WarningPHIAtlantic, Burlington, Camden, Mercer, Middlesex, Monmouth and 1 more7 hr
Dec 21, 4:50 AM ESTAreal Flood WarningPHIAtlantic, Camden, Cape May, Cumberland, Gloucester, Salem4 hr
Dec 21, 5:47 AM ESTRiver Flood WarningPHIBurlington9 hr
Dec 21, 5:50 AM ESTRiver Flood WarningPHIMorris, Somerset37 hr
Dec 21, 5:50 AM ESTRiver Flood WarningPHIMorris, Somerset49 hr
Dec 21, 5:50 AM ESTRiver Flood WarningPHIEssex, Morris, Passaic5 days
Dec 21, 5:50 AM ESTRiver Flood WarningPHIEssex, Passaic3 days
Dec 21, 5:52 AM ESTRiver Flood WarningPHIMorris, Passaic32 hr
Dec 21, 5:55 AM ESTRiver Flood WarningPHISomerset16 hr
Dec 21, 5:55 AM ESTRiver Flood WarningPHISomerset20 hr
Dec 21, 5:55 AM ESTRiver Flood WarningPHIMiddlesex, Somerset20 hr
Dec 21, 5:55 AM ESTRiver Flood WarningPHIMiddlesex, Somerset15 hr
Dec 21, 6:00 AM ESTRiver Flood WarningPHIMorris42 hr
Dec 21, 6:37 AM ESTSmall Craft AdvisoryPHI21 hr
Dec 21, 8:26 AM ESTAreal Flood WarningPHIAtlantic, Camden, Cape May, Cumberland, Gloucester, Salem4 hr
Dec 21, 10:38 AM ESTSpecial Marine WarningPHI37 min
Dec 21, 12:02 PM ESTAreal Flood AdvisoryPHIMonmouth, Ocean4 hr
Dec 21, 12:49 PM ESTMarine Dense Fog AdvisoryPHI6 hr
Dec 21, 4:25 PM ESTGale WarningPHI26 hr
Dec 21, 4:38 PM ESTRiver Flood WarningPHIPassaic20 hr
Dec 21, 5:07 PM ESTAreal Flood WarningPHIWarren4 hr

Nearby

River Flood Warnings in New Jersey, 2018Every river flood warning in 2018

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.