Alert archive / New Jersey / Flash Flood Warnings in 2011

Flash Flood Warning 5, NWS New York, NY

June 23, 2011Orange County, Rockland County, New York; Bergen County, Essex County, Passaic County, New Jersey

NWS New York, NY issued this flash flood warning at Jun 23, 2011, 10:51 AM EDT for Orange County, Rockland County, New York; Bergen County, Essex County, Passaic County, New Jersey. It was in force for 6 hr. 6 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
Jun 23, 2011, 10:51 AM EDT (14:51 UTC)
Expired
Jun 23, 2011, 4:45 PM EDT
In force
6 hr
Issued by
NWS New York, NY
Area
Storm-based polygon
Flood severity
None

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

The radar

The Brookhaven radar (KOKX), 120 km from the middle of the area, began a volume at 14:53 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
Jun 23, 11:22 AM EDTFLASH FLOODMahwah, NJRT 202 AT FRANKLIN TURNPIKE IS CLOSED DUE TO 3 FT OF WATER ON ROADWAY.
Jun 23, 11:30 AM EDTFLASH FLOODRingwood, NJSKYLANDS ROAD CLOSED DUE TO SEVERAL INCHES OF MOVING WATER ON ROAD
Jun 23, 11:35 AM EDTFLASH FLOODNyack, NYRT 59 NEAR PALISADES MALL CLOSED DUE TO FLOODING
Jun 23, 1:20 PM EDTFLASH FLOODNew City, NYPALISADES PARKWAY EXIT RAMP 9W IN NEW CITY COMPLETELY CLOSED DUE TO AN ESTIMATED 1 FOOT OF FLOWING WATER.
Jun 23, 1:40 PM EDTFLASH FLOODWest Milford, NJRUNNING RAIN WATER BROKE AND MOVED A CINDERBLOCK WALL ON ROCKBURN PASS ROAD
Jun 23, 1:47 PM EDTFLASH FLOODSaddle River, NJBOAT RESCUES OCCURRING AT THE INTERSECTION OF WEST SADDLE RIVER ROAD AND ALLENDALE ROAD

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 12:00Z, 2.9 hours before the alert went out and 120 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 2011-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 414 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 12:00Z on 2011-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.19395878Sfc1 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
414 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
575 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

870 
WGUS51 KOKX 231451
FFWOKX
NJC003-013-031-NYC071-087-231745-
/O.NEW.KOKX.FF.W.0005.110623T1451Z-110623T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1051 AM EDT THU JUN 23 2011

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  PASSAIC COUNTY IN NORTHEAST NEW JERSEY...
  ROCKLAND COUNTY IN SOUTHEAST NEW YORK...
  SOUTHERN ORANGE COUNTY IN SOUTHEAST NEW YORK...
  NORTHERN ESSEX COUNTY IN NORTHEAST NEW JERSEY...
  BERGEN COUNTY IN NORTHEAST NEW JERSEY...

* UNTIL 145 PM EDT...

* AT 1048 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR            
  INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED       
  AREA...WITH MORE STORMS ON THEIR WAY FROM THE WEST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 4119 7438 4121 7442 4123 7441 4130 7397
      4124 7397 4121 7394 4108 7390 4086 7394
      4084 7432 4090 7434 4090 7428 4092 7429
      4097 7428 4099 7432 4101 7443 4104 7444
      4102 7448 4103 7450 4108 7451

$$

PM/KCS
2 follow-up statements
630 
WGUS51 KOKX 231703
FFWOKX
NJC003-013-031-NYC071-087-232045-
/O.EXT.KOKX.FF.W.0005.000000T0000Z-110623T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
103 PM EDT THU JUN 23 2011

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  PASSAIC COUNTY IN NORTHEAST NEW JERSEY...
  ROCKLAND COUNTY IN SOUTHEAST NEW YORK...
  SOUTHERN ORANGE COUNTY IN SOUTHEAST NEW YORK...
  NORTHERN ESSEX COUNTY IN NORTHEAST NEW JERSEY...
  BERGEN COUNTY IN NORTHEAST NEW JERSEY...

* UNTIL 445 PM EDT...

* AT 1257 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR 
INDICATED   ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS OVER WESTERN 
NEW JERSEY...PRODUCING LOCALLY HEAVY RAINFALL...MOVING EAST TOWARDS 
THE WARNED AREA. ADDITIONAL FLASH FLOODING IS EXPECTED FROM LOCALLY 
HEAVY RAINFALL FROM THESE STORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF UP TO TWO INCHES AN HOUR ARE POSSIBLE 
IN THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 4119 7438 4121 7442 4123 7441 4130 7397
      4124 7397 4121 7394 4108 7390 4086 7394
      4084 7432 4090 7434 4090 7428 4092 7429
      4097 7428 4099 7432 4101 7443 4104 7444
      4102 7448 4103 7450 4108 7451

$$

MALOIT
187 
WGUS71 KOKX 232042
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
442 PM EDT THU JUN 23 2011

NJC003-013-031-NYC071-087-232050-
/O.EXP.KOKX.FF.W.0005.000000T0000Z-110623T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BERGEN NJ-ESSEX NJ-ORANGE NY-ROCKLAND NY-PASSAIC NJ-
442 PM EDT THU JUN 23 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 445 PM EDT FOR PASSAIC...
ROCKLAND...SOUTH CENTRAL ORANGE...NORTH CENTRAL ESSEX AND BERGEN
COUNTIES...

HEAVY RAIN HAS MOVED EAST...BUT RESIDUAL FLOODING IS STILL EXPECTED. 
THEREFORE...THIS WARNING WILL BE REPLACED SHORTLY WITH AN AREAL 
FLOOD WARNING FOR BERGEN...PASSAIC AND ROCKLAND COUNTIES. A RIVER 
FLOOD WARNING FOR THE SADDLE RIVER AT LODI WILL ALSO LIKELY BE 
ISSUED SHORTLY. 

LAT...LON 4119 7438 4121 7442 4123 7441 4130 7397
      4124 7397 4121 7394 4108 7390 4086 7394
      4084 7432 4090 7434 4090 7428 4092 7429
      4097 7428 4099 7432 4101 7443 4104 7444
      4102 7448 4103 7450 4108 7451

$$

GOODMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 23, 12:59 AM EDTMarine Dense Fog AdvisoryOKX9 hr
Jun 23, 8:55 AM EDTAreal Flood AdvisoryOKXOrange50 min
Jun 23, 9:45 AM EDTAreal Flood AdvisoryOKXOrange2 hr
Jun 23, 10:13 AM EDTSpecial Weather StatementOKXRockland62 min
Jun 23, 11:10 AM EDTSevere Thunderstorm WarningOKXOrange, Rockland, Westchester50 min
Jun 23, 11:59 AM EDTSevere Thunderstorm WarningOKXWestchester46 min
Jun 23, 12:16 PM EDTAreal Flood AdvisoryOKXWestchester59 min
Jun 23, 12:23 PM EDTFlash Flood WarningOKXWestchester4 hr
Jun 23, 1:24 PM EDTAreal Flood AdvisoryOKXNassau, Suffolk66 min
Jun 23, 1:58 PM EDTSpecial Weather StatementOKXSuffolk62 min
Jun 23, 2:03 PM EDTFlash Flood WarningOKXSuffolk117 min
Jun 23, 3:38 PM EDTFlash Flood WarningOKXSuffolk118 min
Jun 23, 4:47 PM EDTAreal Flood WarningOKXOrange, Rockland18 hr
Jun 23, 10:33 AM EDTAreal Flood AdvisoryOKXPassaic117 min
Jun 23, 12:46 PM EDTRiver Flood WarningOKXBergen, Passaic10 hr
Jun 23, 4:59 PM EDTRiver Flood WarningOKXBergen11 hr

Nearby

Flash Flood Warnings in New Jersey, 2011Flash Flood Warnings in New York, 2011Every flash flood warning in 2011

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.