Alert archive / New Jersey / River Flood Warnings in 2021
River Flood Warning 65, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this river flood warning at Sep 2, 2021, 4:00 AM EDT for Morris County, New Jersey. It took effect at Sep 2, 2021, 5:20 AM EDT. It was in force for 47 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 2, 2021, 4:00 AM EDT (08:00 UTC)
- In effect from
- Sep 2, 2021, 5:20 AM EDT
- Expired
- Sep 4, 2021, 4:21 AM EDT
- In force
- 47 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- Moderate
County Morris County, NJ
The radar
The Philadelphia radar (KDIX), 103 km from the middle of the area, began a volume at 08:03 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 Rockaway River at Boonton below reservoir (BONN4). The gauge peaked at 7.00 ft at Sep 2, 2021, 7:00 PM EDT.
- Action stage
- 4.5 ft
- Minor stage
- 5 ft
- Moderate stage
- 7 ft
- Major stage
- 8 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 01381000, 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.
731
WGUS41 KPHI 020800
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
400 AM EDT Thu Sep 2 2021
...The National Weather Service in Mount Holly NJ has issued a Flood
Warning for the following rivers in New Jersey...
Rockaway River At Boonton Below Resvr affecting Morris County.
For the Rockaway River...including Boonton Below Resvr...Moderate
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.
NJC027-022000-
/O.NEW.KPHI.FL.W.0065.210902T0920Z-210904T1001Z/
/BONN4.2.ER.210902T0920Z.210903T0000Z.210904T0400Z.NO/
400 AM EDT Thu Sep 2 2021
The National Weather Service in Mount Holly has issued a
* Flood Warning for
the Rockaway River At Boonton Below Resvr.
* Until Saturday morning.
* At 3:00 AM EDT Thursday the stage was 4.4 feet.
* Flood stage is 5.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage early
this morning to a crest of 7.0 feet this evening. It will then
fall below flood stage early Saturday morning.
* Impact...At 6.0 feet, Flooding occurs on Vail Road in Montville.
The Road heading into Parsippany is subject to closures.
* Impact...At 7.7 feet, Change Bridge Road in Montville, north of
Woodmont Road and south of Stiles Lane, floods. River Road in
Montville floods near Condurso's Garden Center. Both roads are
closed.
* Impact...At 8.0 feet, Due to high water on the Rockaway River,
water backs up through storm drains and flood portions of
Lancaster Avenue, Normandy Drive, Buckingham Circle, Sheffield
Place, Manchester Drive and Konner Avenue in Montville. High water
on the Rockaway also backs up Hatfield Creek in Montville and
causes additional flooding on Lancaster Avenue.
* Flood History...This crest compares to a previous crest of 6.9
feet on 03/07/2011.
&&
Fld Observed Forecasts (2 am EDT)
Location Stg Stg Day/Time Fri Sat Sun
Rockaway River
Boonton Below Resv 5.0 4.4 Thu 3 am EDT 6.6 4.9 4.3
&&
LAT...LON 4087 7443 4092 7438 4087 7430 4082 7436
$$
CMS8 follow-up statements
424
WGUS81 KPHI 021547
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
1147 AM EDT Thu Sep 2 2021
...The Flood Warning continues for the following rivers in New
Jersey...
Rockaway River At Boonton Below Resvr affecting Morris County.
For the Rockaway River...including Boonton Below Resvr...Moderate
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.
NJC027-030400-
/O.CON.KPHI.FL.W.0065.000000T0000Z-210904T1001Z/
/BONN4.2.ER.210902T0852Z.210902T1800Z.210903T2200Z.NO/
1147 AM EDT Thu Sep 2 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Rockaway River At Boonton Below Resvr.
* Until Saturday morning.
* At 11:00 AM EDT Thursday the stage was 6.6 feet.
* Flood stage is 5.0 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 11:00 AM EDT Thursday was 6.6 feet.
* Forecast...The river is expected to rise to a crest of 7.2 feet
this afternoon. It will then fall below flood stage tomorrow
evening.
* Impact...At 6.0 feet, Flooding occurs on Vail Road in Montville.
The Road heading into Parsippany is subject to closures.
* Impact...At 7.7 feet, Change Bridge Road in Montville, north of
Woodmont Road and south of Stiles Lane, floods. River Road in
Montville floods near Condurso's Garden Center. Both roads are
closed.
* Impact...At 8.0 feet, Due to high water on the Rockaway River,
water backs up through storm drains and flood portions of
Lancaster Avenue, Normandy Drive, Buckingham Circle, Sheffield
Place, Manchester Drive and Konner Avenue in Montville. High water
on the Rockaway also backs up Hatfield Creek in Montville and
causes additional flooding on Lancaster Avenue.
* Flood History...This crest compares to a previous crest of 7.2
feet on 04/03/2005.
&&
Fld Observed Forecasts (2 pm EDT)
Location Stg Stg Day/Time Fri Sat Sun
Rockaway River
Boonton Below Resv 5.0 6.6 Thu 11 am ED 5.4 4.0 MSG
&&
LAT...LON 4087 7443 4092 7438 4087 7430 4082 7436
$$
Kruzdlo213
WGUS81 KPHI 022041
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
441 PM EDT Thu Sep 2 2021
...The Flood Warning continues for the following rivers in New
Jersey...
Rockaway River At Boonton Below Resvr affecting Morris County.
For the Rockaway River...including Boonton Below Resvr...Moderate
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.
NJC027-030845-
/O.CON.KPHI.FL.W.0065.000000T0000Z-210904T1001Z/
/BONN4.2.ER.210902T0852Z.210903T0000Z.210903T2200Z.NO/
441 PM EDT Thu Sep 2 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Rockaway River At Boonton Below Resvr.
* Until Saturday morning.
* At 4:00 PM EDT Thursday the stage was 7.0 feet.
* Flood stage is 5.0 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 4:00 PM EDT Thursday was 7.0 feet.
* Forecast...The river is expected to rise to a crest of 7.1 feet
this evening. It will then fall below flood stage tomorrow evening.
* Impact...At 6.0 feet, Flooding occurs on Vail Road in Montville.
The Road heading into Parsippany is subject to closures.
* Impact...At 7.7 feet, Change Bridge Road in Montville, north of
Woodmont Road and south of Stiles Lane, floods. River Road in
Montville floods near Condurso's Garden Center. Both roads are
closed.
* Impact...At 8.0 feet, Due to high water on the Rockaway River,
water backs up through storm drains and flood portions of
Lancaster Avenue, Normandy Drive, Buckingham Circle, Sheffield
Place, Manchester Drive and Konner Avenue in Montville. High water
on the Rockaway also backs up Hatfield Creek in Montville and
causes additional flooding on Lancaster Avenue.
* Flood History...This crest compares to a previous crest of 7.1
feet on 03/23/1977.
&&
Fld Observed Forecasts (6 pm EDT)
Location Stg Stg Day/Time Fri Sat Sun
Rockaway River
Boonton Below Resv 5.0 7.0 Thu 4 pm EDT 5.0 4.0 3.7
&&
LAT...LON 4087 7443 4092 7438 4087 7430 4082 7436
$$
Kruzdlo707
WGUS81 KPHI 030252
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
1052 PM EDT Thu Sep 2 2021
...The Flood Warning continues for the following rivers in New
Jersey...
Rockaway River At Boonton Below Resvr affecting Morris County.
For the Rockaway River...including Boonton Below Resvr...Minor
flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Additional information is available at www.weather.gov/phi.
NJC027-031500-
/O.EXT.KPHI.FL.W.0065.000000T0000Z-210904T0600Z/
/BONN4.1.ER.210902T0852Z.210902T2315Z.210904T0000Z.NO/
1052 PM EDT Thu Sep 2 2021
...The Flood Warning is now in effect until early Saturday morning...
The Flood Warning continues for
the Rockaway River At Boonton Below Resvr.
* Until late Friday night.
* At 10:00 PM EDT Thursday the stage was 6.8 feet.
* Flood stage is 5.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 10:00 PM EDT Thursday was 7.0 feet.
* Forecast...The river is expected to fall below flood stage
tomorrow evening and continue falling to 3.7 feet Sunday evening.
* Impact...At 6.0 feet, Flooding occurs on Vail Road in Montville.
The Road heading into Parsippany is subject to closures.
* Impact...At 7.7 feet, Change Bridge Road in Montville, north of
Woodmont Road and south of Stiles Lane, floods. River Road in
Montville floods near Condurso's Garden Center. Both roads are
closed.
* Flood History...This crest compares to a previous crest of 6.8
feet on 08/29/1971.
&&
Fld Observed Forecasts (8 pm EDT)
Location Stg Stg Day/Time Fri Sat Sun
Rockaway River
Boonton Below Resv 5.0 6.8 Thu 10 pm ED 5.0 3.9 3.7
&&
LAT...LON 4087 7443 4092 7438 4087 7430 4082 7436
$$
Meola737
WGUS81 KPHI 030942
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
542 AM EDT Fri Sep 3 2021
...The Flood Warning continues for the following rivers in New
Jersey...
Rockaway River At Boonton Below Resvr affecting Morris County.
For the Rockaway River...including Boonton Below Resvr...Minor
flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
NJC027-032145-
/O.EXT.KPHI.FL.W.0065.000000T0000Z-210904T0500Z/
/BONN4.1.ER.210902T0852Z.210902T2315Z.210903T2300Z.NO/
542 AM EDT Fri Sep 3 2021
...The Flood Warning is now in effect until just after midnight
tonight...
The Flood Warning continues for
the Rockaway River At Boonton Below Resvr.
* Until late tonight.
* At 5:00 AM EDT Friday the stage was 6.2 feet.
* Flood stage is 5.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 5:00 AM EDT Friday was 7.0 feet.
* Forecast...The river is expected to fall below flood stage this
evening and continue falling to 3.7 feet early Monday morning.
* Impact...At 6.0 feet, Flooding occurs on Vail Road in Montville.
The Road heading into Parsippany is subject to closures.
* Flood History...This crest compares to a previous crest of 6.2
feet on 04/02/1993.
&&
Fld Observed Forecasts (8 am EDT)
Location Stg Stg Day/Time Sat Sun Mon
Rockaway River
Boonton Below Resv 5.0 6.2 Fri 5 am EDT 4.2 3.7 MSG
&&
LAT...LON 4087 7443 4092 7438 4087 7430 4082 7436
$$
Meola450
WGUS81 KPHI 031524
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
1124 AM EDT Fri Sep 3 2021
...The Flood Warning continues for the following rivers in New
Jersey...
Rockaway River At Boonton Below Resvr affecting Morris County.
For the Rockaway River...including Boonton Below Resvr...Minor
flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
NJC027-040330-
/O.CON.KPHI.FL.W.0065.000000T0000Z-210904T0500Z/
/BONN4.1.ER.210902T0852Z.210902T2315Z.210904T0000Z.NO/
1124 AM EDT Fri Sep 3 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Rockaway River At Boonton Below Resvr.
* Until late tonight.
* At 11:00 AM EDT Friday the stage was 5.7 feet.
* Flood stage is 5.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 11:00 AM EDT Friday was 7.0 feet.
* Forecast...The river is expected to fall below flood stage this
evening and continue falling to 3.6 feet Monday morning.
* Impact...At 6.0 feet, Flooding occurs on Vail Road in Montville.
The Road heading into Parsippany is subject to closures.
* Flood History...This crest compares to a previous crest of 5.7
feet on 12/25/2003.
&&
Fld Observed Forecasts (2 pm EDT)
Location Stg Stg Day/Time Sat Sun Mon
Rockaway River
Boonton Below Resv 5.0 5.7 Fri 11 am ED 4.0 3.7 MSG
&&
LAT...LON 4087 7443 4092 7438 4087 7430 4082 7436
$$
Kruzdlo212
WGUS81 KPHI 032017
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
417 PM EDT Fri Sep 3 2021
...The Flood Warning continues for the following rivers in New
Jersey...
Rockaway River At Boonton Below Resvr affecting Morris County.
For the Rockaway River...including Boonton Below Resvr...Minor
flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
NJC027-040500-
/O.CON.KPHI.FL.W.0065.000000T0000Z-210904T0500Z/
/BONN4.1.ER.210902T0852Z.210902T2315Z.210904T0200Z.NO/
417 PM EDT Fri Sep 3 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Rockaway River At Boonton Below Resvr.
* Until late tonight.
* At 4:00 PM EDT Friday the stage was 5.4 feet.
* Flood stage is 5.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 4:00 PM EDT Friday was 7.0 feet.
* Forecast...The river is expected to fall below flood stage late
this evening and continue falling to 4.1 feet early Monday
afternoon.
* Impact...At 6.0 feet, Flooding occurs on Vail Road in Montville.
The Road heading into Parsippany is subject to closures.
* Flood History...This crest compares to a previous crest of 5.4
feet on 03/25/1969.
&&
Fld Observed Forecasts (2 pm EDT)
Location Stg Stg Day/Time Sat Sun Mon
Rockaway River
Boonton Below Resv 5.0 5.4 Fri 4 pm EDT 4.6 4.3 4.1
&&
LAT...LON 4087 7443 4092 7438 4087 7430 4082 7436
$$
Kruzdlo307
WGUS81 KPHI 040111
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
911 PM EDT Fri Sep 3 2021
...The Flood Warning is extended for the following rivers in New
Jersey...
Rockaway River At Boonton Below Resvr affecting Morris County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
NJC027-041000-
/O.EXT.KPHI.FL.W.0065.000000T0000Z-210904T0951Z/
/BONN4.1.ER.210902T0852Z.210902T2315Z.210904T0351Z.NO/
911 PM EDT Fri Sep 3 2021
...The Flood Warning is now in effect until late tonight...
The Flood Warning continues for
the Rockaway River At Boonton Below Resvr.
* Until late tonight.
* At 8:00 PM EDT Friday the stage was 5.2 feet.
* Flood stage is 5.0 feet.
* Minor flooding is occurring.
* Recent Activity...The maximum river stage in the 24 hours ending
at 8:00 PM EDT Friday was 6.8 feet.
* Forecast...The river is expected to fall below flood stage late
this evening and continue falling to 4.0 feet Monday evening.
* Impact...At 6.0 feet, Flooding occurs on Vail Road in Montville.
The Road heading into Parsippany is subject to closures.
* Flood History...This crest compares to a previous crest of 5.3
feet on 03/22/2003.
&&
Fld Observed Forecasts (8 pm EDT)
Location Stg Stg Day/Time Sat Sun Mon
Rockaway River
Boonton Below Resv 5.0 5.2 Fri 8 pm EDT 4.5 4.2 4.0
&&
LAT...LON 4087 7443 4092 7438 4087 7430 4082 7436
$$
SFJ982
WGUS81 KPHI 040821
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
421 AM EDT Sat Sep 4 2021
...The Flood Warning is cancelled for the following rivers in New
Jersey...
Rockaway River At Boonton Below Resvr affecting Morris County.
NJC027-040930-
/O.CAN.KPHI.FL.W.0065.000000T0000Z-210904T0821Z/
/BONN4.1.ER.210902T0852Z.210902T2315Z.210904T0400Z.NO/
421 AM EDT Sat Sep 4 2021
...The Flood Warning for the Rockaway River At Boonton Below Resvr
has been cancelled...
The Flood Warning is cancelled for
the Rockaway River At Boonton Below Resvr.
* At 4:00 AM EDT Saturday the stage was 4.8 feet.
* Flood stage is 5.0 feet.
* Forecast...The river is expected to fall to 4.1 feet early Tuesday
morning.
&&
Fld Observed Forecasts (2 am EDT)
Location Stg Stg Day/Time Sun Mon Tue
Rockaway River
Boonton Below Resv 5.0 4.8 Sat 4 am EDT 4.4 4.2 4.1
&&
LAT...LON 4087 7443 4092 7438 4087 7430 4082 7436
$$
BAHThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 8:02 PM EDT | Flash Flood Warning | PHI | Middlesex, Morris, Somerset | 5 hr |
| Sep 1, 9:01 PM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 5 hr |
| Sep 1, 9:43 PM EDT | River Flood Warning | PHI | Mercer | 33 hr |
| Sep 1, 10:05 PM EDT | Flash Flood Warning | PHI | Morris, Somerset | 4 hr |
| Sep 1, 10:23 PM EDT | Coastal Flood Statement | PHI | Ocean | 13 hr |
| Sep 1, 10:24 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Sep 1, 10:29 PM EDT | River Flood Warning | PHI | Hunterdon, Mercer | 49 hr |
| Sep 1, 10:32 PM EDT | River Flood Warning | PHI | Mercer | 31 hr |
| Sep 1, 10:35 PM EDT | River Flood Warning | PHI | Bergen, Morris, Passaic | 30 hr |
| Sep 1, 10:37 PM EDT | River Flood Warning | PHI | Morris, Passaic | 41 hr |
| Sep 1, 10:38 PM EDT | River Flood Warning | PHI | Morris, Somerset | 21 days |
| Sep 1, 10:47 PM EDT | Areal Flood Warning | PHI | Warren | 23 hr |
| Sep 1, 10:52 PM EDT | Areal Flood Warning | PHI | Hunterdon, Warren | 12 hr |
| Sep 2, 12:01 AM EDT | Areal Flood Warning | PHI | Hunterdon, Morris, Sussex, Warren | 40 hr |
| Sep 2, 12:28 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Gloucester | 3 hr |
| Sep 2, 12:31 AM EDT | Areal Flood Advisory | PHI | Monmouth, Ocean | 2 hr |
| Sep 2, 1:38 AM EDT | Areal Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 4 hr |
| Sep 2, 1:52 AM EDT | Areal Flood Warning | PHI | Morris, Somerset | 13 hr |
| Sep 2, 2:23 AM EDT | Areal Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 9 hr |
| Sep 2, 2:29 AM EDT | Areal Flood Warning | PHI | Burlington, Camden, Gloucester | 5 hr |
| Sep 2, 3:52 AM EDT | Areal Flood Warning | PHI | Hunterdon, Mercer, Morris, Somerset, Warren | 8 hr |
| Sep 2, 3:53 AM EDT | Areal Flood Warning | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset | 8 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Hunterdon, Mercer | 37 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Hunterdon, Warren | 37 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Hunterdon | 37 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Hunterdon | 33 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Hunterdon, Mercer | 34 hr |
| Sep 2, 4:45 AM EDT | River Flood Warning | PHI | Sussex, Warren | 5 hr |
| Sep 2, 6:05 AM EDT | Coastal Flood Warning | PHI | Burlington, Camden, Gloucester, Mercer | 6 hr |
| Sep 2, 1:20 PM EDT | Areal Flood Warning | PHI | Middlesex | 21 hr |
| Sep 2, 6:44 PM EDT | Coastal Flood Advisory | PHI | Burlington, Camden, Gloucester | 7 hr |
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.