Alert archive / New Jersey / River Flood Warnings in 2018

River Flood Warning 95, NWS Philadelphia/Mount Holly

December 21, 2018Middlesex County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 21, 2018, 5:55 AM EST for Middlesex County, Somerset County, New Jersey. It took effect at Dec 21, 2018, 4:00 PM EST. It was in force for 10 hr.

The area

The outline as issued.

The facts

Issued: Dec 21, 2018, 5:55 AM EST (10:55 UTC)
In effect from: Dec 21, 2018, 4:00 PM EST
Expired: Dec 22, 2018, 1:51 AM EST
In force: 10 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

Counties Middlesex County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 70 km from the middle of the area, began a volume at 10:56 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 Raritan River at Manville (MNVN4). The gauge peaked at 12.68 ft at Dec 21, 2018, 7:00 PM EST.

Action stage: 12 ft
Minor stage: 14 ft
Moderate stage: 17 ft
Major stage: 20 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01400500, 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.

862 
WGUS41 KPHI 211055
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mt Holly NJ
555 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...

  Millstone River At Blackwells Mills affecting Somerset County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-211654-
/O.NEW.KPHI.FL.W.0093.181221T2100Z-181223T0936Z/
/BKWN4.2.ER.181221T2100Z.181222T1200Z.181223T0336Z.NO/
555 AM EST Fri Dec 21 2018

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The Millstone River at Blackwells Mills.
* from this afternoon to late Saturday night...Or until the warning is 
  cancelled.
* At 5:15 AM Friday the stage was 3.4 feet.
* Flood stage is 9.0 feet.
* Moderate flooding is forecast.
* Forecast...Rise above flood stage by late this afternoon and continue to rise 
  to near 10.7 feet by tomorrow morning. The river will fall below flood stage by
  late tomorrow evening.
* Impact...At 10.0 feet...The D&R Canal is flooded by the Millstone River.
* Flood history...This crest compares to a previous crest of 10.5 feet on Dec 2 
  1996.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Millstone River
  Blackwells Mills       9.0    3.36  Fri 5 AM    10.7    Sat 7 AM 
 
&&
 
LAT...LON 4045 7463 4048 7461 4055 7460 4054 7453
      4046 7454 4043 7456             

$$

2 follow-up statements

837 
WGUS81 KPHI 211612
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
1112 AM EST Fri Dec 21 2018

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

  North Branch Raritan River At Raritan affecting Somerset 
   County
  Raritan River At Manville affecting Middlesex and Somerset
   Counties
  Raritan River At Bound Brook affecting Middlesex and Somerset
   Counties

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-220212-
/O.EXT.KPHI.FL.W.0094.181221T1700Z-181222T0653Z/
/RRTN4.1.ER.181221T1700Z.181221T1800Z.181222T0053Z.NO/
1112 AM EST Fri Dec 21 2018

The Flood Warning continues for
  The North Branch Raritan River at Raritan.
* Until late tonight...or until the warning is cancelled.
* At 10:45 AM Friday the stage was 8.3 feet.
* Flood stage is 10.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by this afternoon and continue
  to rise to near 10.5 feet by this afternoon. The river will fall
  below flood stage by this evening.
* Impact...At 10.0 feet...Flooding occurs along Old York Road and 
  in North Branch Village.
* Flood history...This crest compares to a previous crest of 10.3 
  feet on Apr 3 2005.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG   DAY TIME     CREST

Raritan River
  Raritan                10.0   8.28  Fri 11 AM    10.5    Fri 1 PM 
 
&&
 
LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471
                                      

$$

NJC023-035-220212-
/O.EXT.KPHI.FL.W.0095.181221T2100Z-181222T1200Z/
/MNVN4.1.ER.181221T2100Z.181222T0000Z.181222T0600Z.NO/
1112 AM EST Fri Dec 21 2018

The Flood Warning continues for
  The Raritan River at Manville.
* From this afternoon to Saturday morning...or until the warning is 
  cancelled.
* At 10:15 AM Friday the stage was 10.4 feet.
* Flood stage is 14.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by late this afternoon and continue 
  to rise to near 14.8 feet by this evening. The river will fall below 
  flood stage after midnight tonight.
* Impact...At 15.0 feet...Dukes Parkway begins to flood in Hillsborough.
* Flood history...This crest compares to a previous crest of 14.8 feet 
  on Mar 22 1999.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG    DAY TIME    CREST

Raritan River
  Manville               14.0   10.40  Fri 10 AM   14.8    Fri 7 PM 
 
&&
 
LAT...LON 4058 7464 4057 7456 4052 7456 4054 7471
                                      

$$

NJC023-035-220212-
/O.EXT.KPHI.FL.W.0096.181221T2200Z-181222T1936Z/
/BDKN4.1.ER.181221T2200Z.181222T0600Z.181222T1336Z.NO/
1112 AM EST Fri Dec 21 2018

The Flood Warning continues for
  The Raritan River at Bound Brook.
* From this afternoon to Saturday afternoon...or until the warning is 
  cancelled.
* At 10:15 AM Friday the stage was 24.7 feet.
* Flood stage is 28.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by late this afternoon and continue 
  to rise to near 29.3 feet tonight. The river will fall below flood 
  stage by tomorrow morning.
* Impact...At 30.0 feet...Main Street is protected by flap valves/sluice
  gates. This level triggers the gate closures to protect Main Street. 
* Flood history...This crest compares to a previous crest of 29.5 feet on
  Mar 11 1994.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG    DAY TIME    CREST

Raritan River
  Bound Brook            28.0   24.68  Fri 10 AM   29.3    Sat 1 AM 
 
&&
 
LAT...LON 4057 7456 4056 7448 4049 7438 4045 7442
      4051 7452 4052 7456             

$$

Kruzdlo

045 
WGUS81 KPHI 212032
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
332 PM EST Fri Dec 21 2018

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

  North Branch Raritan River At Raritan affecting Somerset 
   County
  Raritan River At Manville affecting Middlesex and Somerset 
  Counties

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

  Raritan River At Bound Brook affecting Middlesex and Somerset
  Counties

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-212102-
/O.CAN.KPHI.FL.W.0094.000000T0000Z-181222T0653Z/
/RRTN4.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
332 PM EST Fri Dec 21 2018

The Flood Warning is cancelled for
  The North Branch Raritan River at Raritan.
* At 3:15 PM Friday the stage was 8.6 feet.
* Flood stage is 10.0 feet.
* Forecast...The river is cresting below flood stage at 8.6 feet. 
 
&&

                         FLD     OBSERVED          FORECAST
 LOCATION                STG     STG   DAY TIME    CREST

Raritan River
  Raritan                10.0    8.60  Fri 3 PM    Cresting 
 
&&
 
LAT...LON 4063 7470 4062 7463 4058 7464 4054 7471
                                      

$$

NJC023-035-212102-
/O.CAN.KPHI.FL.W.0095.000000T0000Z-181222T1200Z/
/MNVN4.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
332 PM EST Fri Dec 21 2018

The Flood Warning is cancelled for
  The Raritan River at Manville.
* At 3:15 PM Friday the stage was 12.1 feet.
* Flood stage is 14.0 feet.
* Forecast...The river will crest below near a flood stage of 
  12.1 feet.
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG    DAY TIME    CREST

Raritan River
  Manville               14.0   12.05  Fri 3 PM    Nearing crest 
 
&&
 
LAT...LON 4058 7464 4057 7456 4052 7456 4054 7471
                                      

$$

NJC023-035-220400-
/O.EXT.KPHI.FL.W.0096.181221T2200Z-181222T0400Z/
/BDKN4.1.ER.181221T2200Z.181221T2200Z.181221T2200Z.NO/
332 PM EST Fri Dec 21 2018

The Flood Warning continues for
  The Raritan River at Bound Brook.
* Until this evening...or until the warning is cancelled.
* At 2:15 PM Friday the stage was 25.7 feet.
* Flood stage is 28.0 feet.
* Forecast...The river is expected to rise to near flood stage
  late this afternoon.
* Impact...At 28.0 feet...Backyard and low areas are protected 
  by levees and the flood wall. Without the levees or if there
  is a breach in the levees, minor flooding will occur.
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG   DAY TIME     CREST

Raritan River
  Bound Brook            28.0   25.70  Fri 2 PM    28.0    Fri 5 PM 
 
&&
 
LAT...LON 4057 7456 4056 7448 4049 7438 4045 7442
      4051 7452 4052 7456             

$$

Kruzdlo

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 21, 4:09 AM EST	Areal Flood Warning	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more	16 hr
Dec 21, 4:27 AM EST	Areal Flood Warning	PHI	Sussex, Warren	8 hr
Dec 21, 4:36 AM EST	Areal Flood Warning	PHI	Atlantic, Burlington, Camden, Mercer, Middlesex, Monmouth and 1 more	7 hr
Dec 21, 4:50 AM EST	Areal Flood Warning	PHI	Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem	4 hr
Dec 21, 5:47 AM EST	River Flood Warning	PHI	Burlington	9 hr
Dec 21, 5:50 AM EST	River Flood Warning	PHI	Morris, Somerset	37 hr
Dec 21, 5:50 AM EST	River Flood Warning	PHI	Morris, Somerset	49 hr
Dec 21, 5:50 AM EST	River Flood Warning	PHI	Essex, Morris, Passaic	5 days
Dec 21, 5:50 AM EST	River Flood Warning	PHI	Essex, Passaic	3 days
Dec 21, 5:52 AM EST	River Flood Warning	PHI	Morris, Passaic	32 hr
Dec 21, 5:55 AM EST	River Flood Warning	PHI	Somerset	16 hr
Dec 21, 5:55 AM EST	River Flood Warning	PHI	Somerset	20 hr
Dec 21, 5:55 AM EST	River Flood Warning	PHI	Middlesex, Somerset	15 hr
Dec 21, 6:00 AM EST	River Flood Warning	PHI	Morris	42 hr
Dec 21, 6:30 AM EST	River Flood Warning	PHI	Mercer	5 hr
Dec 21, 6:37 AM EST	Small Craft Advisory	PHI		21 hr
Dec 21, 8:26 AM EST	Areal Flood Warning	PHI	Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem	4 hr
Dec 21, 10:38 AM EST	Special Marine Warning	PHI		37 min
Dec 21, 12:02 PM EST	Areal Flood Advisory	PHI	Monmouth, Ocean	4 hr
Dec 21, 12:49 PM EST	Marine Dense Fog Advisory	PHI		6 hr
Dec 21, 4:25 PM EST	Gale Warning	PHI		26 hr
Dec 21, 4:38 PM EST	River Flood Warning	PHI	Passaic	20 hr
Dec 21, 5:07 PM EST	Areal Flood Warning	PHI	Warren	4 hr

Nearby

River Flood Warnings in New Jersey, 2018 Every 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.