Alert archive / New Jersey / Flash Flood Warnings in 2004

Flash Flood Warning 13, NWS New York, NY

July 23, 2004Bergen County, New Jersey; Rockland County, New York

NWS New York, NY issued this flash flood warning at Jul 23, 2004, 1:31 PM EDT for Bergen County, New Jersey; Rockland County, New York. It was in force for 119 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 23, 2004, 1:31 PM EDT (17:31 UTC)
Expired
Jul 23, 2004, 3:30 PM EDT
In force
119 min
Issued by
NWS New York, NY
Area
Whole counties

Counties Bergen County, NJ, Rockland County, NY

The radar

The Brookhaven radar (KOKX), 102 km from the middle of the area, began a volume at 17:31 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 nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 5.5 hours before the alert went out and 102 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 12:00Z on 2004-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 78 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2004-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
78 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1005 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS51 KOKX 231731
FFWOKX
NJC003-NYC087-231930-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE UPTON NY
131 PM EDT FRI JUL 23 2004

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN BERGEN COUNTY IN NORTHEAST NEW JERSEY
  EASTERN ROCKLAND COUNTY IN SOUTHEAST NEW YORK

* UNTIL 330 PM EDT

* AT 131 PM EDT...WEATHER SPOTTERS REPORTED VERY HEAVY RAIN NEAR
  BERGENFIELD...MOVING NORTHEAST AT 5 MPH.

* THE EXCESSIVE RAINFALL WILL BE NEAR... 
  8 MILES SOUTHEAST OF RIDGEWOOD AROUND 140 PM
  NORWOOD AROUND 210 PM
  TAPPAN AROUND 225 PM
  ORANGEBURG AND 6 MILES SOUTHEAST OF PEARL RIVER AROUND 235 PM
  ORANGEBURG AROUND 240 PM
  7 MILES SOUTHEAST OF NANUET AROUND 245 PM

SOME OTHER LOCATIONS IN THE WARNING INCLUDE ENGLEWOOD...FORT LEE...
HAWTHORNE...ORADELL...POMONA AND UPPER NYACK.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

$$

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
UPTON NY.

LAT...LON 4089 7415 4078 7398 4098 7391 4115 7390
      4132 7399 4114 7411

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 11:06 AM EDTFlash Flood WarningOKXBergen, Essex, Hudson114 min
Jul 23, 2:46 PM EDTFlash Flood WarningOKXPassaic119 min
Jul 23, 3:34 PM EDTFlash Flood WarningOKXBergen116 min
Jul 23, 11:30 AM EDTFlash Flood WarningOKXRockland2 hr
Jul 23, 2:56 PM EDTFlash Flood WarningOKXWestchester2 hr
Jul 23, 5:07 PM EDTFlash Flood WarningOKXWestchester53 min

Nearby

Flash Flood Warnings in New Jersey, 2004Flash Flood Warnings in New York, 2004Every flash flood warning in 2004

Sources

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