Alert archive / New Jersey / Flash Flood Warnings in 2014

Flash Flood Warning 2, NWS New York, NY

May 23, 20144 counties in New Jersey; New York County, New York

NWS New York, NY issued this flash flood warning at May 23, 2014, 7:35 PM EDT for 4 counties in New Jersey; New York County, New York. It was in force for 5 hr. 8 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
May 23, 2014, 7:35 PM EDT (23:35 UTC)
Expired
May 24, 2014, 12:30 AM EDT
In force
5 hr
Issued by
NWS New York, NY
Area
Storm-based polygon
Flood severity
None

Counties Bergen County, NJ, Essex County, NJ, Hudson County, NJ, Passaic County, NJ, New York County, NY

The radar

The Philadelphia radar (KDIX), 92 km from the middle of the area, began a volume at 23:37 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
May 23, 8:00 PM EDTFLASH FLOODJersey City, NJMOTORISTS STRANDED IN FLOOD WATERS ON TONELLE AVENUE IN JERSEY CITY. FIRE DEPARTMENT RESPONDING.
May 23, 8:05 PM EDTFLASH FLOODLyndhurst, NJPOLITO AVENUE AT RUTHERFORD AVENUE IS CLOSED DUE TO FLOODING .
May 23, 8:13 PM EDTFLASH FLOODNewark, NJNUMERSOUS CARS TRAPPED IN FLOOD WATERS ON ROUTE 21 NEAR THE VIADUCT. FIRE DEPT RESPONDING.
May 23, 8:35 PM EDTFLASH FLOODNewark, NJROUTE 21 SOUTHBOUND AT 3RD AVENUE IS CLOSED DUE TO FLASH FLOODING.
May 23, 8:52 PM EDTFLASH FLOODJersey City, NJTONNELLE AVENUE SOUTHBOUND AT MANHATTAN AVENUE IS CLOSED DUE TO FLASH FLOODING.
May 23, 9:40 PM EDTFLASH FLOODClifton, NJROUTE 19 SOUTHBOUND AT BROAD STREET IS CLOSED DUE TO FLASH FLOODING.
May 23, 9:52 PM EDTFLASH FLOODPaterson, NJ3 VEHICLES SUBMERGED IN FLOOD WATERS AT 26 NORTH STRAIGHT STREET. 2 PEOPLE EXTRACTED FROM VEHICLES WITH NO INJURIES REPORTED.
May 23, 10:05 PM EDTFLASH FLOODClifton, NJSOUTHBOUND GARDEN STATE PARKWAY IS CLOSED DUE TO FLOODING AT ROUTE 46.

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, 11.6 hours before the alert went out and 103 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 2014-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 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 2014-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 square meters per square second.1939587897Sfc1 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
25 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
487 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
78 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.

410 
WGUS51 KOKX 232335
FFWOKX
NJC003-013-017-031-NYC061-240230-
/O.NEW.KOKX.FF.W.0002.140523T2335Z-140524T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
735 PM EDT FRI MAY 23 2014

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN PASSAIC COUNTY IN NORTHEAST NEW JERSEY...
  NEW YORK (MANHATTAN) COUNTY IN SOUTHEAST NEW YORK...
  SOUTHERN BERGEN COUNTY IN NORTHEAST NEW JERSEY...
  EASTERN ESSEX COUNTY IN NORTHEAST NEW JERSEY...
  HUDSON COUNTY IN NORTHEAST NEW JERSEY...

* UNTIL 1030 PM EDT...

* AT 733 PM EDT...THUNDERSTORMS WERE MOVING EAST AROUND 20 MPH AND 
ARE PRODUCING VERY HEAVY RAIN WITH RAINFALL RATES BETWEEN 1 AND 2 
INCHES PER HOUR. THIS IS EXPECTED TO CAUSE FLASH FLOODING OVER THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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

&&

LAT...LON 4066 7414 4068 7414 4069 7416 4069 7418
      4071 7421 4098 7422 4095 7405 4088 7395
      4078 7393 4071 7398 4070 7401 4070 7403
      4068 7404 4069 7406 4065 7407

$$
3 follow-up statements
180 
WGUS71 KOKX 240102
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
902 PM EDT FRI MAY 23 2014

NJC003-013-017-031-NYC061-240230-
/O.CON.KOKX.FF.W.0002.000000T0000Z-140524T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUDSON NJ-ESSEX NJ-BERGEN NJ-NEW YORK (MANHATTAN) NY-PASSAIC NJ-
902 PM EDT FRI MAY 23 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT FOR
EASTERN PASSAIC...NEW YORK (MANHATTAN)...SOUTH CENTRAL BERGEN...
EASTERN ESSEX AND HUDSON COUNTIES...

AT 856 PM EDT...MODERATE TO HEAVY RAIN CONTINUED TO FALL ACROSS THE 
WARNED AREA. NUMEROUS CARS WERE REPORTED TO BE TRAPPED IN FLOOD 
WATERS ON ROUTE 21 NEAR THE VIADUCT IN NEWARK NJ. MOTORISTS WERE 
ALSO STRANDED IN FLOOD WATERS ON TONELLE AVENUE IN JERSEY CITY. 
LOCAL FIRE DEPARTMENTS WERE RESPONDING TO BOTH INCIDENTS. 

MODERATE TO HEAVY RAIN IS EXPECTED TO CONTINUE THROUGH 1030 PM AS IT 
MOVES AROUND 15 MPH FROM THE NORTHWEST EXACERBATING THESE FLOODING 
CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4066 7414 4068 7414 4069 7416 4069 7418
      4071 7421 4098 7422 4095 7405 4088 7395
      4078 7393 4071 7398 4070 7401 4070 7403
      4068 7404 4069 7406 4065 7407

$$
966 
WGUS51 KOKX 240214
FFWOKX
NJC003-013-017-031-NYC061-240430-
/O.EXT.KOKX.FF.W.0002.000000T0000Z-140524T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
1014 PM EDT FRI MAY 23 2014

THE NATIONAL WEATHER SERVICE IN UPTON NY HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  EASTERN PASSAIC COUNTY IN NORTHEAST NEW JERSEY...
  NEW YORK (MANHATTAN) COUNTY IN SOUTHEAST NEW YORK...
  SOUTHERN BERGEN COUNTY IN NORTHEAST NEW JERSEY...
  EASTERN ESSEX COUNTY IN NORTHEAST NEW JERSEY...
  HUDSON COUNTY IN NORTHEAST NEW JERSEY...

* UNTIL 1230 AM EDT...

* AT 1008 PM EDT...SHOWERS AND THUNDERSTORMS WERE MOVING OVER THE 
REGION PRODUCING MODERATE TO LOCALLY HEAVY RAINFALL WITH RAINFALL 
RATES BETWEEN ONE HALF AND ONE INCH OF RAIN PER HOUR. THIS 
RAINFALL...COMBINED WITH THE RAINFALL THAT FELL EARLIER IN THE 
EVENING HAS RESULTED IN FLASH FLOODING OVER THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 4066 7414 4068 7414 4069 7416 4069 7418
      4071 7421 4098 7422 4095 7405 4088 7395
      4078 7393 4071 7398 4070 7401 4070 7403
      4068 7404 4069 7406 4065 7407

$$
235 
WGUS71 KOKX 240422
FFSOKX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE NEW YORK NY
1222 AM EDT SAT MAY 24 2014

NJC003-013-017-031-NYC061-240431-
/O.EXP.KOKX.FF.W.0002.000000T0000Z-140524T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUDSON NJ-ESSEX NJ-BERGEN NJ-NEW YORK (MANHATTAN) NY-PASSAIC NJ-
1222 AM EDT SAT MAY 24 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1230 AM EDT FOR EASTERN
PASSAIC...NEW YORK (MANHATTAN)...SOUTH CENTRAL BERGEN...EASTERN ESSEX
AND HUDSON COUNTIES...

ADDITIONAL SHOWERS MAY IMPACT THE AREA OVER THE NEXT SEVERAL 
HOURS...BUT RAINFALL RATES WILL BE CONSIDERABLY LIGHTER. THERE WILL 
LIKELY BE AREAS OF PONDED WATER ON ROADWAYS...SO CAUTION STILL NEEDS
TO BE EXERCISED. 

LAT...LON 4066 7414 4068 7414 4069 7416 4069 7418
      4071 7421 4098 7422 4095 7405 4088 7395
      4078 7393 4071 7398 4070 7401 4070 7403
      4068 7404 4069 7406 4065 7407

$$

DSW

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 2:29 PM EDTAreal Flood AdvisoryOKXBergen, Essex, Hudson, Passaic, Union91 min
May 23, 3:55 PM EDTAreal Flood AdvisoryOKXBergen, Essex, Hudson, Passaic, Union2 hr
May 23, 6:45 PM EDTSpecial Weather StatementOKXEssex, Hudson, Union90 min
May 23, 6:56 PM EDTAreal Flood AdvisoryOKXBergen, Essex, Hudson, Union94 min
May 23, 7:00 PM EDTSevere Thunderstorm WarningOKXBergen, Essex, Hudson45 min
May 23, 3:44 PM EDTSpecial Weather StatementOKXWestchester31 min
May 23, 3:57 PM EDTSevere Thunderstorm WarningOKXPutnam, Westchester48 min
May 23, 4:26 PM EDTAreal Flood AdvisoryOKXPutnam, Westchester2 hr
May 23, 5:32 PM EDTAreal Flood AdvisoryOKXNassau118 min
May 23, 5:35 PM EDTAreal Flood AdvisoryOKXSuffolk115 min
May 23, 5:59 PM EDTAreal Flood AdvisoryOKXRockland, Westchester2 hr
May 23, 6:18 PM EDTAreal Flood AdvisoryOKXNassau, Suffolk87 min

Nearby

Flash Flood Warnings in New Jersey, 2014Flash Flood Warnings in New York, 2014Every flash flood warning in 2014

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.