Alert archive / New York / River Flood Warnings in 2021

River Flood Warning 12, NWS New York, NY

October 26, 2021Orange County, Rockland County, New York; Bergen County, Passaic County, New Jersey

NWS New York, NY issued this river flood warning at Oct 26, 2021, 1:45 PM EDT for Orange County, Rockland County, New York; Bergen County, Passaic County, New Jersey. It took effect at Oct 26, 2021, 3:00 PM EDT. It was in force for 34 hr.

The area

The outline as issued.

The facts

Issued: Oct 26, 2021, 1:45 PM EDT (17:45 UTC)
In effect from: Oct 26, 2021, 3:00 PM EDT
Expired: Oct 28, 2021, 1:16 AM EDT
In force: 34 hr
Issued by: NWS New York, NY
Area: Storm-based polygon
Flood severity: Minor

Counties Bergen County, NJ, Passaic County, NJ, Orange County, NY, Rockland County, NY

The radar

The Brookhaven radar (KOKX), 115 km from the middle of the area, began a volume at 17:47 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 Ramapo River at Mahwah (MAWN4). The gauge peaked at 8.93 ft at Oct 27, 2021, 6:00 AM EDT.

Action stage: 7.5 ft
Minor stage: 8 ft
Moderate stage: 9 ft
Major stage: 12 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01387500, 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.

502 
WGUS41 KOKX 261745
FLWOKX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service New York NY
145 PM EDT Tue Oct 26 2021

...The National Weather Service in New York NY has issued a Flood 
Warning for the following rivers in New Jersey...New York...

  Ramapo River near Mahwah affecting Orange, Rockland, Bergen and 
  Passaic Counties.

For the Ramapo River...including Mahwah...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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

Additional information is available at www.weather.gov.

The next statement will be issued late tonight at 145 AM EDT.

&&


NJC003-031-NYC071-087-270545-
/O.NEW.KOKX.FL.W.0012.211026T1900Z-211027T1500Z/
/MAWN4.1.ER.211026T1900Z.211027T0000Z.211027T0900Z.NO/
145 PM EDT Tue Oct 26 2021

The National Weather Service in Upton has issued a

* Flood Warning for
  the Ramapo River near Mahwah.
* Until late tomorrow morning.
* At 12:30 PM EDT Tuesday the stage was 7.8 feet.
* Flood stage is 8.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this afternoon to a crest of 8.2 feet this evening. It will then 
  fall below flood stage late tonight.
* Impact...At 8.0 feet, Minor flooding along Route 202. 
* Flood History...This crest compares to a previous crest of 8.2 
  feet on 12/02/1996.

&&


            Fld   Observed           Forecasts (2 pm EDT)     
Location    Stg   Stg   Day/Time     Wed   Thu   Fri          

Ramapo River
Mahwah      8.0   7.8   Tue 12 pm ED 7.7   6.2   MSG          





&&

LAT...LON 4096 7425 4102 7430 4131 7417 4128 7411
      4108 7413

$$

Fig

6 follow-up statements

106 
WGUS81 KOKX 261923
FLSOKX

Flood Statement
National Weather Service New York NY
323 PM EDT Tue Oct 26 2021

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

  Ramapo River near Mahwah affecting Orange, Rockland, Bergen and 
  Passaic Counties.

For the Ramapo River...including Mahwah...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued late tonight at 330 AM EDT.

&&


NJC003-031-NYC071-087-270730-
/O.CON.KOKX.FL.W.0012.000000T0000Z-211027T1500Z/
/MAWN4.1.ER.211026T1739Z.211027T0000Z.211027T0900Z.NO/
323 PM EDT Tue Oct 26 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Ramapo River near Mahwah.
* Until late tomorrow morning.
* At 2:30 PM EDT Tuesday the stage was 8.1 feet.
* Flood stage is 8.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 2:30 PM EDT Tuesday was 8.1 feet.
* Forecast...The river is expected to rise to a crest of 8.2 feet 
  this evening. It will then fall below flood stage late tonight.
* Impact...At 8.0 feet, Minor flooding along Route 202. 
* Flood History...This crest compares to a previous crest of 8.2 
  feet on 12/02/1996.

&&


            Fld   Observed           Forecasts (2 pm EDT)     
Location    Stg   Stg   Day/Time     Wed   Thu   Fri          

Ramapo River
Mahwah      8.0   8.1   Tue 2 pm EDT 7.7   6.2   MSG          





&&

LAT...LON 4096 7425 4102 7430 4131 7417 4128 7411
      4108 7413

$$

JC

096 
WGUS81 KOKX 270143
FLSOKX

Flood Statement
National Weather Service New York NY
943 PM EDT Tue Oct 26 2021

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

  Ramapo River near Mahwah affecting Orange, Rockland, Bergen and 
  Passaic Counties.

For the Ramapo River...including Mahwah...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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

Additional information is available at www.weather.gov.

The next statement will be issued Wednesday morning at 945 AM EDT.

&&


NJC003-031-NYC071-087-271345-
/O.EXT.KOKX.FL.W.0012.000000T0000Z-211028T0000Z/
/MAWN4.1.ER.211026T1739Z.211027T0600Z.211027T1800Z.NO/
943 PM EDT Tue Oct 26 2021

...The Flood Warning is now in effect until tomorrow evening...

The Flood Warning continues for
  the Ramapo River near Mahwah.
* Until tomorrow evening.
* At 8:30 PM EDT Tuesday the stage was 8.3 feet.
* Flood stage is 8.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:30 PM EDT Tuesday was 8.3 feet.
* Forecast...The river is expected to rise to a crest of 8.4 feet 
  just after midnight tonight. It will then fall below flood stage 
  early tomorrow afternoon.
* Impact...At 8.0 feet, Minor flooding along Route 202. 
* Flood History...This crest compares to a previous crest of 8.4 
  feet on 01/05/1982.

&&


            Fld   Observed           Forecasts (8 pm EDT)     
Location    Stg   Stg   Day/Time     Wed   Thu   Fri          

Ramapo River
Mahwah      8.0   8.3   Tue 8 pm EDT 7.7   6.1   4.7          





&&

LAT...LON 4096 7425 4102 7430 4131 7417 4128 7411
      4108 7413

$$

JC

580 
WGUS41 KOKX 270538
FLWOKX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service New York NY
138 AM EDT Wed Oct 27 2021

...Forecast flooding changed from Minor to Moderate severity and 
increased in duration for the following rivers in New Jersey...New 
York...

  Ramapo River near Mahwah affecting Orange, Rockland, Bergen and 
  Passaic Counties.

For the Ramapo River...including Mahwah...Moderate 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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

Additional information is available at www.weather.gov.

The next statement will be issued this morning at 945 AM EDT.

&&


NJC003-031-NYC071-087-271400-
/O.EXT.KOKX.FL.W.0012.000000T0000Z-211028T0900Z/
/MAWN4.2.ER.211026T2245Z.211027T0900Z.211028T0300Z.NO/
138 AM EDT Wed Oct 27 2021

...Forecast flooding increased from Minor to Moderate severity and 
increased in duration until late tonight...

The Flood Warning continues for
  the Ramapo River near Mahwah.
* Until late tonight.
* At 12:30 AM EDT Wednesday the stage was 8.8 feet.
* Flood stage is 8.0 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 12:30 AM EDT Wednesday was 8.8 feet.
* Forecast...The river is expected to rise to a crest of 9.1 feet 
  early this morning. It will then fall below flood stage late this 
  evening.
* Impact...At 9.0 feet, State Route 202 floods downstream. Moderate 
  flooding along Route 202 and Route 17. Water into backyards. Minor 
  flooding along Brakeshoe Place, Brook Street and Catherine Avenue.
* Flood History...This crest compares to a previous crest of 9.1 
  feet on 08/19/1960.

&&


            Fld   Observed           Forecasts (2 am EDT)     
Location    Stg   Stg   Day/Time     Thu   Fri   Sat          

Ramapo River
Mahwah      8.0   8.8   Wed 12 am ED 7.6   5.7   MSG          





&&

LAT...LON 4096 7425 4102 7430 4131 7417 4128 7411
      4108 7413

$$

JE

613 
WGUS81 KOKX 271336
FLSOKX

Flood Statement
National Weather Service New York NY
936 AM EDT Wed Oct 27 2021

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

  Ramapo River near Mahwah affecting Orange, Rockland, Bergen and 
  Passaic Counties.

For the Ramapo River...including Mahwah...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 945 PM EDT.

&&


NJC003-031-NYC071-087-280145-
/O.CON.KOKX.FL.W.0012.000000T0000Z-211028T0900Z/
/MAWN4.1.ER.211026T2245Z.211027T1045Z.211028T0300Z.NO/
936 AM EDT Wed Oct 27 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Ramapo River near Mahwah.
* Until late tonight.
* At 8:30 AM EDT Wednesday the stage was 8.9 feet.
* Flood stage is 8.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:30 AM EDT Wednesday was 8.9 feet.
* Forecast...The river is expected to fall below flood stage late 
  this evening and continue falling to 5.4 feet early Saturday 
  morning.
* Impact...At 9.0 feet, State Route 202 floods downstream. Moderate 
  flooding along Route 202 and Route 17. Water into backyards. Minor 
  flooding along Brakeshoe Place, Brook Street and Catherine Avenue.
* Flood History...This crest compares to a previous crest of 8.9 
  feet on 11/12/1995.

&&


            Fld   Observed           Forecasts (8 am EDT)     
Location    Stg   Stg   Day/Time     Thu   Fri   Sat          

Ramapo River
Mahwah      8.0   8.9   Wed 8 am EDT 7.1   5.2   MSG          





&&

LAT...LON 4096 7425 4102 7430 4131 7417 4128 7411
      4108 7413

$$

JT

069 
WGUS81 KOKX 272143
FLSOKX

Flood Statement
National Weather Service New York NY
543 PM EDT Wed Oct 27 2021

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

  Ramapo River near Mahwah affecting Orange, Rockland, Bergen and 
  Passaic Counties.

For the Ramapo River...including Mahwah...Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued late tonight at 500 AM EDT.

&&


NJC003-031-NYC071-087-280900-
/O.CON.KOKX.FL.W.0012.000000T0000Z-211028T0900Z/
/MAWN4.1.ER.211026T2245Z.211027T1045Z.211028T0300Z.NO/
543 PM EDT Wed Oct 27 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Ramapo River near Mahwah.
* Until late tonight.
* At 8:30 AM EDT Wednesday the stage was 8.9 feet.
* Flood stage is 8.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:30 AM EDT Wednesday was 8.9 feet.
* Forecast...The river is expected to fall below flood stage late 
  this evening and continue falling to 5.4 feet early Saturday 
  morning.
* Impact...At 9.0 feet, State Route 202 floods downstream. Moderate 
  flooding along Route 202 and Route 17. Water into backyards. Minor 
  flooding along Brakeshoe Place, Brook Street and Catherine Avenue.
* Flood History...This crest compares to a previous crest of 8.9 
  feet on 11/12/1995.

&&


            Fld   Observed           Forecasts (8 pm EDT)     
Location    Stg   Stg   Day/Time     Thu   Fri   Sat          

Ramapo River
Mahwah      8.0   8.9   Wed 8 am EDT 6.5   4.7   MSG          





&&

LAT...LON 4096 7425 4102 7430 4131 7417 4128 7411
      4108 7413

$$

DBR

496 
WGUS81 KOKX 280516
FLSOKX

Flood Statement
National Weather Service New York NY
116 AM EDT Thu Oct 28 2021

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

  Ramapo River near Mahwah affecting Orange, Rockland, Bergen and 
  Passaic Counties.

NJC003-031-NYC071-087-280630-
/O.CAN.KOKX.FL.W.0012.000000T0000Z-211028T0516Z/
/MAWN4.1.ER.211026T2245Z.211027T1045Z.211028T0200Z.NO/
116 AM EDT Thu Oct 28 2021

...The Flood Warning for the Ramapo River near Mahwah has been 
cancelled...

The Flood Warning is cancelled for
  the Ramapo River near Mahwah.
* At 1:00 AM EDT Thursday the stage was 7.6 feet.
* Flood stage is 8.0 feet.
* Forecast...The river is expected to continue to fall steadily.

&&


            Fld   Observed           Forecasts (2 am EDT)     
Location    Stg   Stg   Day/Time     Fri   Sat   Sun          

Ramapo River
Mahwah      8.0   7.6   Thu 1 am  ED 6.1   5.0   MSG          





&&

LAT...LON 4096 7425 4102 7430 4131 7417 4128 7411
      4108 7413

$$

JE

The office that day

Everything else NWS New York, NY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 25, 10:33 PM EDT	Flash Flood Warning	OKX	Rockland	3 hr
Oct 25, 10:44 PM EDT	Special Weather Statement	OKX	Rockland	46 min
Oct 25, 11:08 PM EDT	Special Weather Statement	OKX	Bronx, Westchester	37 min
Oct 26, 1:38 AM EDT	Areal Flood Advisory	OKX	Suffolk	3 hr
Oct 26, 1:52 AM EDT	Areal Flood Advisory	OKX	Kings, Queens	6 hr
Oct 26, 3:12 AM EDT	Areal Flood Advisory	OKX	Bronx, New York, Richmond	5 hr
Oct 26, 4:12 AM EDT	High Wind Warning	OKX	Suffolk	32 hr
Oct 26, 5:01 AM EDT	Areal Flood Advisory	OKX	Nassau, Queens, Suffolk	3 hr
Oct 26, 6:03 AM EDT	Areal Flood Advisory	OKX	Bronx, Rockland, Westchester	3 hr
Oct 26, 7:31 AM EDT	Areal Flood Advisory	OKX	Suffolk	119 min
Oct 26, 7:54 AM EDT	Areal Flood Advisory	OKX	Bronx, Kings, New York, Queens, Richmond	4 hr
Oct 26, 7:58 AM EDT	Areal Flood Advisory	OKX	Nassau, Suffolk	3 hr
Oct 26, 9:08 AM EDT	Areal Flood Advisory	OKX	Orange, Rockland, Westchester	112 min
Oct 26, 9:26 AM EDT	Special Weather Statement	OKX	Nassau, Suffolk	94 min
Oct 26, 2:58 PM EDT	Areal Flood Advisory	OKX	Orange, Rockland	3 hr
Oct 26, 3:21 PM EDT	Areal Flood Advisory	OKX	Suffolk	114 min
Oct 26, 3:36 PM EDT	Areal Flood Advisory	OKX	Orange, Putnam, Rockland, Westchester	2 hr
Oct 26, 4:52 PM EDT	Coastal Flood Statement	OKX	Nassau, Queens, Suffolk	22 hr
Oct 26, 4:52 PM EDT	Coastal Flood Advisory	OKX	Nassau, Suffolk	26 hr
Oct 26, 7:11 PM EDT	Areal Flood Advisory	OKX	Bronx, Kings, Nassau, New York, Orange, Queens and 3 more	3 hr
Oct 25, 9:42 PM EDT	Flash Flood Warning	OKX	Essex, Passaic	3 hr
Oct 26, 7:39 AM EDT	Flash Flood Warning	OKX	Bergen, Essex, Hudson, Passaic, Union	3 hr
Oct 26, 10:05 AM EDT	River Flood Warning	OKX	Bergen	14 hr
Oct 26, 10:38 AM EDT	Areal Flood Advisory	OKX	Bergen, Essex, Hudson, Passaic	112 min

Nearby

River Flood Warnings in New York, 2021 River Flood Warnings in New Jersey, 2021 Every 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.