Alert archive / New Jersey / Flash Flood Warnings in 2016

Flash Flood Warning 4, NWS New York, NY

July 31, 2016Bergen County, Passaic County, New Jersey

NWS New York, NY issued this flash flood warning at Jul 31, 2016, 8:34 PM EDT for Bergen County, Passaic County, New Jersey. It was in force for 3 hr. 12 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 31, 2016, 8:34 PM EDT (00:34 UTC)
Expired
Jul 31, 2016, 11:30 PM EDT
In force
3 hr
Issued by
NWS New York, NY
Area
Storm-based polygon
Flood severity
None

Counties Bergen County, NJ, Passaic County, NJ

The radar

The Philadelphia radar (KDIX), 110 km from the middle of the area, began a volume at 00:36 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.

What was reported inside it

TimeReportWhereRemark
Jul 31, 8:41 PM EDTFLASH FLOODWayne, NJWATER RESCUE FOR VEHICLE AND OCCUPANTS IN DEEP WATER ON HAMBURG TURNPIKE BETWEEN MOUNTAIN RIDGE DRIVE AND OLD HOMESTEAD ROAD.
Jul 31, 8:45 PM EDTFLASH FLOODWanaque, NJTHE BRIDGE NORTH OF THE INTERSECTION OF WILSON DRIVE AND CONKLINTOWN ROAD WAS OVERTOPPED BY FLOOD WATERS FROM GREEN SWAMP BROOK.
Jul 31, 8:53 PM EDTFLASH FLOODWayne, NJFIRE DEPARTMENT RESPONDING FOR A WATER RESCUE WITH OCCUPANTS TRAPPED IN A CAR AT VALLEY ROAD AND BIRCHWOOD.
Jul 31, 8:55 PM EDTFLASH FLOODWayne, NJWATER RESCUE AT HAMBURD TURNPIKE AND COLFAX ROAD.
Jul 31, 8:55 PM EDTFLASH FLOODWayne, NJWATER RESCUE AT HAMBURG TURNPIKE AND COLFAX ROAD.
Jul 31, 9:02 PM EDTFLASH FLOODWayne, NJWATER RESCUE ON LAKE DRIVE EAST. CAR IN TWO FEET OF WATER.
Jul 31, 9:05 PM EDTFLASH FLOODWayne, NJWATER RESCUE FOR OCCUPANT TRAPPED IN CAR AT VALLEY ROAD AND MACDONALD DRIVE.
Jul 31, 9:13 PM EDTFLASH FLOODWayne, NJWATER RESCUE ON ROUTE 23 BETWEEN RATZER ROAD AND CEDAR PLACE.
Jul 31, 9:20 PM EDTFLASH FLOODPaterson, NJWATER FLOODING STREET UP TO CAR BUMPERS ON UNION AVENUE.
Jul 31, 9:25 PM EDTFLASH FLOODWayne, NJFLOODING INSIDE THE SCHUYLER COLFAX MIDDLE SCHOOL.
Jul 31, 9:43 PM EDTFLASH FLOODWayne, NJWATER RESCUE WITH THREE OCCUPANTS IN CAR AT VALLEY ROAD NEAR JUDITH PLACE
Jul 31, 10:08 PM EDTFLASH FLOODRutherford, NJRIVERSIDE AVENUE AT WEST PIERREPONT AVENUE FLOODED. REPORT VIA SOCIAL MEDIA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 0.6 hours before the alert went out and 114 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 2016-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 51 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2016-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
51 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
553 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

387 
WGUS51 KOKX 010034
FFWOKX
NJC003-031-010330-
/O.NEW.KOKX.FF.W.0004.160801T0034Z-160801T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
834 PM EDT SUN JUL 31 2016

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN PASSAIC COUNTY IN NORTHEASTERN NEW JERSEY...
  BERGEN COUNTY IN NORTHEASTERN NEW JERSEY...

* UNTIL 1130 PM EDT

* AT 833 PM EDT...TRAINED WEATHER SPOTTERS REPORTED AROUND 2
  INCHES OF RAIN  IN THE LAST HOUR WITH FLASH FLOODING LIKELY ACROSS
  THE WARNED AREA.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PATERSON...PASSAIC...WAYNE...PARAMUS...RIDGEWOOD...RUTHERFORD...
  RAMSEY...POMPTON LAKES...HAWTHORNE...ORADELL...CLIFTON...
  FAIR LAWN...GARFIELD...LODI...ELMWOOD PARK...WYCKOFF...
  NEW MILFORD...LITTLE FALLS...SADDLE BROOK AND OAKLAND.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4081 7414 4082 7413 4086 7420 4089 7427
      4091 7427 4093 7429 4095 7428 4097 7428
      4098 7430 4100 7430 4100 7431 4115 7424
      4102 7396 4080 7411

$$
2 follow-up statements
704 
WGUS71 KOKX 010119
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
919 PM EDT SUN JUL 31 2016

NJC003-031-010330-
/O.CON.KOKX.FF.W.0004.000000T0000Z-160801T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PASSAIC NJ-BERGEN NJ-
919 PM EDT SUN JUL 31 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT FOR
EASTERN PASSAIC AND BERGEN COUNTIES...

AT 916 PM EDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING IN
WAYNE PASSAIC COUNTY WITH MULTIPLE WATER RESCUES. TWO TO FOUR INCHES
OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS ALREADY OCCURRING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PATERSON...PASSAIC...WAYNE...PARAMUS...RIDGEWOOD...RUTHERFORD...
RAMSEY...POMPTON LAKES...HAWTHORNE...ORADELL...CLIFTON...FAIR LAWN...
GARFIELD...LODI...ELMWOOD PARK...WYCKOFF...NEW MILFORD...
LITTLE FALLS...SADDLE BROOK AND OAKLAND.

THE HEAVIEST RAIN HAS MOVED OUT OUT THE AREA HOWEVER ADDITIONAL
RAINFALL OF UP TO AN INCH IS POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4081 7414 4082 7413 4086 7420 4089 7427
      4091 7427 4093 7429 4095 7428 4097 7428
      4098 7430 4100 7430 4100 7431 4115 7424
      4102 7396 4080 7411

$$
386 
WGUS71 KOKX 010311
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
1111 PM EDT SUN JUL 31 2016

NJC003-031-010330-
/O.CON.KOKX.FF.W.0004.000000T0000Z-160801T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PASSAIC NJ-BERGEN NJ-
1111 PM EDT SUN JUL 31 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT FOR
EASTERN PASSAIC AND BERGEN COUNTIES...

AT 1107 PM EDT...DOPPLER RADAR INDICATED THAT THE HEAVY RAIN
HAS MOVED OUT OF THWE WARNED AREA WITH ONLY AREAS OF LIGHT RAIN STILL
OCCURRING. FLOOD WATERS WERE SLOWLY RECEDING. THERE MAY STILL BE
AREAS THAT ARE FLOODED WITH ROAD CLOSURE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL HAS CAUSED FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.

&&

LAT...LON 4081 7414 4082 7413 4086 7420 4089 7427
      4091 7427 4093 7429 4095 7428 4097 7428
      4098 7430 4100 7430 4100 7431 4115 7424
      4102 7396 4080 7411

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 8:19 PM EDTSpecial Weather StatementOKXBergen, Passaic56 min
Jul 31, 9:10 PM EDTAreal Flood AdvisoryOKXBergen, Hudson2 hr
Jul 31, 9:27 PM EDTSpecial Weather StatementOKXHudson48 min
Jul 31, 9:35 PM EDTFlash Flood WarningOKXBergen, Hudson3 hr
Jul 31, 10:35 PM EDTAreal Flood AdvisoryOKXEssex, Hudson, Union3 hr
Aug 1, 11:32 AM EDTFlash Flood WatchOKXBergen, Passaic16 hr

Nearby

Flash Flood Warnings in New Jersey, 2016Every flash flood warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.