Alert archive / New Jersey / Flash Flood Warnings in 2014

Flash Flood Warning 39, NWS Philadelphia/Mount Holly

July 15, 20147 counties in New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 15, 2014, 6:11 PM EDT for 7 counties in New Jersey. It was in force for 4 hr. 1 report 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 15, 2014, 6:11 PM EDT (22:11 UTC)
Expired: Jul 15, 2014, 10:15 PM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Ocean County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 86 km from the middle of the area, began a volume at 22:12 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

Time	Report	Where	Remark
Jul 15, 9:00 PM EDT	FLOOD	Spotswood, NJ	MUNDY ROAD CLOSED DUE TO FLOODING

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, 10.2 hours before the alert went out and 132 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 662 J/kg
Mixed-layer CIN: -104 J/kg
Mixed-layer LCL: 663 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 163 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.7

Open this sounding in Storm Lab

The text

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

323 
WGUS51 KPHI 152211
FFWPHI
NJC019-021-023-025-027-029-035-160215-
/O.NEW.KPHI.FF.W.0039.140715T2211Z-140716T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
611 PM EDT TUE JUL 15 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN MERCER COUNTY IN CENTRAL NEW JERSEY...
  WESTERN MONMOUTH COUNTY IN CENTRAL NEW JERSEY...
  MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITIES OF...NEW BRUNSWICK...SOUTH AMBOY...PERTH
  AMBOY...
  MORRIS COUNTY IN NORTHERN NEW JERSEY...
  SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  THIS INCLUDES THE CITY OF SOMERVILLE...
  EASTERN HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
  NORTHWESTERN OCEAN COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 1015 PM EDT

* AT 610 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM NEAR BASKING RIDGE...OR 10
  MILES WEST OF SUMMIT...MOVING NORTHEAST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SUCCASUNNA...CHATHAM...MADISON...MORRISTOWN...FLORHAM PARK...MORRIS
  PLAINS...MOUNT ARLINGTON...DOVER...WHARTON...EAST HANOVER...
  ROCKAWAY...PARSIPPANY...MOUNTAIN LAKES...BOONTON...LAKE TELEMARK...
  LINCOLN PARK...GREEN POND...KINNELON AND BUTLER

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4003 7442 4038 7480 4074 7482 4107 7449
      4106 7450 4103 7450 4105 7445 4102 7443
      4100 7434 4091 7427 4090 7433 4082 7433
      4073 7437 4068 7445 4067 7440 4060 7444
      4061 7421 4049 7426 4046 7421 4046 7416

$$

SFJ

2 follow-up statements

222 
WGUS71 KPHI 160000
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
800 PM EDT TUE JUL 15 2014

NJC019-021-023-025-027-029-035-160215-
/O.CON.KPHI.FF.W.0039.000000T0000Z-140716T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUNTERDON NJ-MERCER NJ-MORRIS NJ-SOMERSET NJ-MIDDLESEX NJ-MONMOUTH NJ-
OCEAN NJ-
800 PM EDT TUE JUL 15 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT FOR
NORTHWESTERN OCEAN...WESTERN MONMOUTH...MIDDLESEX...SOMERSET...
MORRIS...EASTERN MERCER AND EASTERN HUNTERDON COUNTIES...

AT 754 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A BROAD AREA OF SHOWERS AND THUNDERSTORMS PRODUCING HEAVY 
RAIN. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO FAR 
HILLS...PEAPACK...GLADSTONE...SAYREVILLE...MATAWAN...EDISON...
CHESTER...SOUTH AMBOY...MILLINGTON...BASKING RIDGE...PERTH 
AMBOY...MENDHAM...COLONIA...SUCCASUNNA...CARTERET... 
MORRISTOWN...MOUNT ARLINGTON...MADISON...CHATHAM...WHARTON... 
DOVER...MORRIS PLAINS...FLORHAM PARK...ROCKAWAY... 
PARSIPPANY...EAST HANOVER...MOUNTAIN LAKES...LAKE 
TELEMARK...BOONTON...GREEN POND...LINCOLN PARK...KINNELON
AND BUTLER

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4003 7442 4038 7480 4074 7482 4107 7449
      4106 7450 4103 7450 4105 7445 4102 7443
      4100 7434 4091 7427 4090 7433 4082 7433
      4073 7437 4068 7445 4067 7440 4060 7444
      4061 7421 4049 7426 4046 7421 4046 7416

$$

SFJ

838 
WGUS71 KPHI 160213
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1013 PM EDT TUE JUL 15 2014

NJC019-021-023-025-027-029-035-160223-
/O.EXP.KPHI.FF.W.0039.000000T0000Z-140716T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUNTERDON NJ-MERCER NJ-MORRIS NJ-SOMERSET NJ-MIDDLESEX NJ-MONMOUTH NJ-
OCEAN NJ-
1013 PM EDT TUE JUL 15 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1015 PM EDT FOR
NORTHWESTERN OCEAN...WESTERN MONMOUTH...MIDDLESEX...SOMERSET...
MORRIS...EASTERN MERCER AND EASTERN HUNTERDON COUNTIES...

LAT...LON 4003 7442 4038 7480 4074 7482 4107 7449
      4106 7450 4103 7450 4105 7445 4102 7443
      4100 7434 4091 7427 4090 7433 4082 7433
      4073 7437 4068 7445 4067 7440 4060 7444
      4061 7421 4049 7426 4046 7421 4046 7416

$$

JRK

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 14, 8:19 PM EDT	Flash Flood Warning	PHI	Burlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 1 more	4 hr
Jul 14, 8:19 PM EDT	Tornado Warning	PHI	Burlington	26 min
Jul 14, 8:36 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	54 min
Jul 14, 8:43 PM EDT	Flash Flood Warning	PHI	Burlington, Monmouth, Ocean	4 hr
Jul 14, 9:06 PM EDT	Special Marine Warning	PHI		84 min
Jul 14, 10:26 PM EDT	Special Marine Warning	PHI		49 min
Jul 15, 2:50 AM EDT	Areal Flood Warning	PHI	Ocean	5 hr
Jul 15, 3:53 AM EDT	Small Craft Advisory	PHI		24 hr
Jul 15, 1:09 PM EDT	Special Weather Statement	PHI	Somerset	66 min
Jul 15, 1:21 PM EDT	Special Weather Statement	PHI	Middlesex, Monmouth	54 min
Jul 15, 1:22 PM EDT	Areal Flood Advisory	PHI	Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Morris and 2 more	3 hr
Jul 15, 1:36 PM EDT	Special Weather Statement	PHI	Monmouth	54 min
Jul 15, 1:50 PM EDT	Flash Flood Warning	PHI	Middlesex, Monmouth, Ocean	4 hr
Jul 15, 1:52 PM EDT	Special Weather Statement	PHI	Burlington, Camden	68 min
Jul 15, 2:17 PM EDT	Special Weather Statement	PHI	Mercer	43 min
Jul 15, 2:22 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Salem	4 hr
Jul 15, 2:29 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	51 min
Jul 15, 2:30 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth	41 min
Jul 15, 2:43 PM EDT	Special Weather Statement	PHI	Monmouth	32 min
Jul 15, 2:44 PM EDT	Special Marine Warning	PHI		31 min
Jul 15, 2:46 PM EDT	Areal Flood Advisory	PHI	Monmouth, Ocean	3 hr
Jul 15, 3:14 PM EDT	Flash Flood Warning	PHI	Monmouth, Ocean	7 hr
Jul 15, 3:23 PM EDT	Special Weather Statement	PHI	Monmouth	67 min
Jul 15, 3:42 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Salem	63 min
Jul 15, 3:44 PM EDT	Special Marine Warning	PHI		91 min
Jul 15, 4:19 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	56 min
Jul 15, 4:26 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Hunterdon, Mercer, Middlesex, Somerset	64 min
Jul 15, 4:27 PM EDT	Flash Flood Warning	PHI	Camden, Cumberland, Gloucester, Salem	4 hr
Jul 15, 4:37 PM EDT	Special Weather Statement	PHI	Camden, Gloucester, Salem	53 min
Jul 15, 4:53 PM EDT	Special Marine Warning	PHI		67 min
Jul 15, 5:05 PM EDT	Special Weather Statement	PHI	Burlington	55 min
Jul 15, 5:11 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset	64 min
Jul 15, 5:14 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Monmouth, Ocean	61 min
Jul 15, 5:43 PM EDT	Special Weather Statement	PHI	Ocean	62 min
Jul 15, 5:45 PM EDT	Special Weather Statement	PHI	Atlantic	60 min
Jul 15, 5:50 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Middlesex, Morris, Somerset	4 hr
Jul 15, 5:57 PM EDT	Special Marine Warning	PHI		63 min
Jul 15, 6:00 PM EDT	Special Marine Warning	PHI		60 min
Jul 15, 6:03 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more	4 hr
Jul 15, 6:05 PM EDT	Special Marine Warning	PHI		115 min
Jul 15, 6:11 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	50 min
Jul 15, 6:12 PM EDT	Special Weather Statement	PHI	Morris	63 min
Jul 15, 6:17 PM EDT	Special Weather Statement	PHI	Cape May	58 min
Jul 15, 6:44 PM EDT	Flash Flood Warning	PHI	Atlantic, Burlington, Ocean	4 hr
Jul 15, 7:20 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Mercer, Monmouth, Ocean	4 hr

Nearby

Flash Flood Warnings in New Jersey, 2014 Every 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.