Alert archive / New Jersey / River Flood Warnings in 2018

River Flood Warning 92, NWS Philadelphia/Mount Holly

December 21, 2018Morris County, Passaic County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 21, 2018, 5:52 AM EST for Morris County, Passaic County, New Jersey. It took effect at Dec 21, 2018, 7:00 PM EST. It was in force for 19 hr.

The area

The outline as issued.

The facts

Issued: Dec 21, 2018, 5:52 AM EST (10:52 UTC)
In effect from: Dec 21, 2018, 7:00 PM EST
Expired: Dec 22, 2018, 2:04 PM EST
In force: 19 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

Counties Morris County, NJ, Passaic County, NJ

The radar

The Philadelphia radar (KDIX), 117 km from the middle of the area, began a volume at 10:51 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 Pequannock River at Macopin (MCPN4). The gauge peaked at 5.62 ft at Dec 22, 2018, 1:00 AM EST.

Action stage: 5 ft
Minor stage: 5.5 ft
Moderate stage: 6.5 ft
Major stage: 7.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01382500, 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.

281 
WGUS41 KPHI 211052
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mt Holly NJ
552 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...

  Pequannock River Below Macopin Dam affecting Morris and Passaic Counties

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC027-031-211652-
/O.NEW.KPHI.FL.W.0092.181222T0500Z-181223T0600Z/
/MCPN4.1.ER.181222T0500Z.181222T1200Z.181223T0000Z.NO/
552 AM EST Fri Dec 21 2018

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The Pequannock River at Macopin Dam.
* from late tonight to late Saturday night...Or until the warning is cancelled.
* At 5:45 AM Friday the stage was 4.6 feet.
* Flood stage is 5.5 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by after midnight tonight and continue to 
  rise to near 5.7 feet by tomorrow morning. The river will fall below flood 
  stage by tomorrow evening.
* Impact...At 5.5 feet...Road closures begin in both Butler and Bloomingdale due
  to flooding.
* Flood history...This crest compares to a previous crest of 5.7 feet on Apr 17 
  2011.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Pequannock River
  Macopin Dam            5.5    4.59  Fri 6 AM     5.7    Sat 7 AM 
 
&&
 
LAT...LON 4099 7441 4104 7438 4101 7430 4097 7433
                                      

$$

5 follow-up statements

636 
WGUS81 KPHI 211558
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
1058 AM EST Fri Dec 21 2018

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

  Pequannock River Below Macopin Dam affecting Morris and 
  Passaic Counties

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC027-031-220158-
/O.EXT.KPHI.FL.W.0092.181222T0200Z-181223T1500Z/
/MCPN4.1.ER.181222T0200Z.181222T1200Z.181223T0900Z.NO/
1058 AM EST Fri Dec 21 2018

The Flood Warning continues for
  The Pequannock River at Macopin Dam.
* From this evening to Sunday morning...or until the warning is
  cancelled.
* At 10:45 AM Friday the stage was 5.1 feet.
* Flood stage is 5.5 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by tonight and continue to rise
  to near 5.9 feet by tomorrow morning. The river will fall below 
  flood stage by Sunday morning.
* Impact...At 5.5 feet...Road closures begin in both Butler and  
  Bloomingdale due to flooding.
* Flood history...This crest compares to a previous crest of 5.9 
  feet on Mar 7 2011.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG   DAY TIME     CREST

Pequannock River
  Macopin Dam            5.5    5.14  Fri 11 AM    5.9    Sat 7 AM 
 
&&
 
LAT...LON 4099 7441 4104 7438 4101 7430 4097 7433
                                      

$$

Kruzdlo

313 
WGUS81 KPHI 212017
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
317 PM EST Fri Dec 21 2018

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

  Pequannock River Below Macopin Dam affecting Morris and 
  Passaic Counties

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC027-031-220617-
/O.EXT.KPHI.FL.W.0092.181222T0000Z-181223T0100Z/
/MCPN4.1.ER.181222T0000Z.181222T0600Z.181222T1900Z.NO/
317 PM EST Fri Dec 21 2018

The Flood Warning continues for
  The Pequannock River at Macopin Dam.
* From this evening to Saturday evening...or until the warning is 
  cancelled.
* At 3:00 PM Friday the stage was 5.4 feet.
* Flood stage is 5.5 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by this evening and continue to 
  rise to near 5.7 feet tonight. The river will fall below flood 
  stage by early tomorrow afternoon.
* Impact...At 5.5 feet...Road closures begin in both Butler and 
  Bloomingdale due to flooding.
* Flood history...This crest compares to a previous crest of 5.7 
  feet on Apr 17 2011.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG   DAY TIME     CREST

Pequannock River
  Macopin Dam            5.5    5.44  Fri 3 PM     5.7    Sat 1 AM 
 
&&
 
LAT...LON 4099 7441 4104 7438 4101 7430 4097 7433
                                      

$$

Kruzdlo

557 
WGUS81 KPHI 220244
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
944 PM EST Fri Dec 21 2018

...The Flood Warning continues for the Pequannock River Below
Macopin Dam...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC027-031-221243-
/O.EXT.KPHI.FL.W.0092.000000T0000Z-181223T0000Z/
/MCPN4.1.ER.181221T2145Z.181222T0600Z.181222T1800Z.NO/
944 PM EST Fri Dec 21 2018

The Flood Warning continues for
  The Pequannock River at Macopin Dam.
* At 9:30 PM, the river level was 5.61 feet.
* Flood stage is 5.5 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...The river will continue rising to near 5.7 feet
  overnight. The river should fall back below flood stage early
  on Saturday afternoon.
* Impact...At 5.5 feet, road closures begin in both Butler and
  Bloomingdale due to flooding.
* Flood history...This crest compares to a previous crest of 5.7
  feet on April 17, 2011.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Pequannock River
  Macopin Dam            5.5   5.61  Fri 930 PM    5.7   Sat 1 AM 
 
&&
 
LAT...LON 4099 7441 4104 7438 4101 7430 4097 7433
                                      
$$

Iovino

992 
WGUS81 KPHI 221013
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
513 AM EST Sat Dec 22 2018

...The Flood Warning continues for the following rivers in New Jersey...
  Pequannock River Below Macopin Dam affecting Morris and Passaic Counties

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC027-031-222013-
/O.CON.KPHI.FL.W.0092.000000T0000Z-181223T0000Z/
/MCPN4.1.ER.181221T2145Z.181222T0640Z.181222T1800Z.NO/
513 AM EST Sat Dec 22 2018

The Flood Warning continues for
  The Pequannock River at Macopin Dam.
* At 5:00 AM Saturday the stage was 5.6 feet.
* Flood stage is 5.5 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...The river will continue to fall to below flood stage by this 
  afternoon.
* Impact...At 5.5 feet...Road closures begin in both Butler and Bloomingdale due
  to flooding.
* Flood history...This crest compares to a previous crest of 5.6 feet on Mar 31 
  2010.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Pequannock River
  Macopin Dam            5.5    5.60  Sat 5 AM     Crested and falling
 
&&
 
LAT...LON 4099 7441 4104 7438 4101 7430 4097 7433
                                      

$$

457 
WGUS81 KPHI 221904
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
204 PM EST Sat Dec 22 2018

...The Flood Warning is cancelled for the Pequannock River
Below Macopin Dam...

&&

NJC027-031-221934-
/O.CAN.KPHI.FL.W.0092.000000T0000Z-181223T0000Z/
/MCPN4.1.ER.181221T2145Z.181222T0640Z.181222T1550Z.NO/
204 PM EST Sat Dec 22 2018

The Flood Warning is cancelled for
  The Pequannock River below Macopin Dam.
* At 1:45 PM, the river level was 5.44 feet.
* Flood stage is 5.5 feet.
* The river level fell below flood stage at 10:50 AM.
* Forecast...The river level will continue to fall, reaching
  5.1 feet on Sunday morning.
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Pequannock River
  Macopin Dam            5.5    5.44  Sat 145 PM   Crested 
 
&&
 
LAT...LON 4099 7441 4104 7438 4101 7430 4097 7433
                                      
$$

Iovino

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, 5:55 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	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.