Alert archive / New Jersey / Flash Flood Warnings in 2014

Flash Flood Warning 11, NWS Philadelphia/Mount Holly

June 13, 2014Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 13, 2014, 4:18 PM EDT for Sussex County, Warren County, New Jersey. It was in force for 4 hr. 2 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 13, 2014, 4:18 PM EDT (20:18 UTC)
Expired: Jun 13, 2014, 8:15 PM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

Counties Sussex County, NJ, Warren County, NJ

The radar

The Philadelphia radar (KDIX), 110 km from the middle of the area, began a volume at 20:20 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
Jun 13, 4:35 PM EDT	FLASH FLOOD	Franklin Twp, NJ	ROADS CLOSED DUE TO EXCESSIVE SHORT DURATION THUNDERSTORM RELATED RAINFALL.
Jun 13, 4:35 PM EDT	FLASH FLOOD	Phillipsburg, NJ	ROADS CLOSED DUE TO EXCESSIVE SHORT DURATION TSTM RELATED RAINS.

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, 8.3 hours before the alert went out and 178 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: 101 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 502 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

468 
WGUS51 KPHI 132018
FFWPHI
NJC037-041-140015-
/O.NEW.KPHI.FF.W.0011.140613T2018Z-140614T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
418 PM EDT FRI JUN 13 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  WARREN COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 815 PM EDT

* AT 416 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS SHOWING 
  THUNDERSTORMS ACROSS THE WARNED AREA. THESE THUNDERSTORMS WERE   
  PRODUCING HEAVY RAIN. ONE TO THREE INCHES PER HOUR CAN BE EXPECTED 
  WITH THE MOST INTENSE STORMS. THIS AMOUNT OF RAIN IN A ONE HOUR    
  TIME FRAME WILL LEAD TO FLOODING. SOME OF THE FLOODING WILL        
  DEVELOP QUICKLY.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  HOPATCONG...HACKETTSTOWN...STANHOPE...HOPE...GREAT
  MEADOWS-VIENNA...COLUMBIA...BLAIRSTOWN...ANDOVER...
  ALLAMUCHY-PANTHER VALLEY AND GREENDELL

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. MOVE TO HIGHER GROUND.

&&

LAT...LON 4100 7460 4091 7469 4092 7475 4088 7481
      4084 7482 4071 7497 4064 7520 4068 7517
      4069 7520 4075 7520 4078 7517 4077 7513
      4082 7509 4085 7509 4086 7505 4093 7510
      4098 7507

$$

KRUZDLO

1 follow-up statement

011 
WGUS71 KPHI 132223
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
623 PM EDT FRI JUN 13 2014

NJC037-041-132232-
/O.CAN.KPHI.FF.W.0011.000000T0000Z-140614T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN NJ-SUSSEX NJ-
623 PM EDT FRI JUN 13 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTH CENTRAL
SUSSEX AND WARREN COUNTIES...

THE HEAVY RAIN HAS MOVED OUT OF THE AREA. THERE WAS SOME EARLIER 
FLOODING IN PHILLIPSBURG AND FRANKLIN TOWNSHIP. THAT FLOODING HAS 
DIMINISHED.

LAT...LON 4100 7460 4091 7469 4092 7475 4088 7481
      4084 7482 4071 7497 4064 7520 4068 7517
      4069 7520 4075 7520 4078 7517 4077 7513
      4082 7509 4085 7509 4086 7505 4093 7510
      4098 7507

$$

KRUZDLO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 3:25 AM EDT	Special Weather Statement	PHI	Hunterdon	65 min
Jun 13, 4:28 AM EDT	Special Weather Statement	PHI	Hunterdon, Sussex, Warren	62 min
Jun 13, 8:32 AM EDT	Areal Flood Advisory	PHI	Morris, Sussex, Warren	118 min
Jun 13, 11:54 AM EDT	Flash Flood Watch	PHI	Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 5 more	11 hr
Jun 13, 2:00 PM EDT	Special Marine Warning	PHI		90 min
Jun 13, 2:16 PM EDT	Special Weather Statement	PHI	Warren	119 min
Jun 13, 2:52 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Sussex, Warren	4 hr
Jun 13, 3:14 PM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	2 hr
Jun 13, 3:16 PM EDT	Areal Flood Advisory	PHI	Camden, Gloucester, Hunterdon, Mercer, Salem, Somerset	4 hr
Jun 13, 3:36 PM EDT	Small Craft Advisory for Hazardous Seas	PHI		6 hr
Jun 13, 3:38 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 1 more	52 min
Jun 13, 3:46 PM EDT	Flash Flood Warning	PHI	Morris, Somerset	4 hr
Jun 13, 3:52 PM EDT	Special Weather Statement	PHI	Camden, Gloucester, Mercer, Middlesex, Salem	53 min
Jun 13, 4:06 PM EDT	Special Marine Warning	PHI		54 min
Jun 13, 4:27 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Somerset, Sussex	63 min
Jun 13, 4:58 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	23 min
Jun 13, 5:04 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Cumberland, Gloucester, Mercer, Middlesex and 3 more	4 hr
Jun 13, 5:08 PM EDT	Special Weather Statement	PHI	Middlesex	37 min
Jun 13, 5:24 PM EDT	Flash Flood Warning	PHI	Middlesex	4 hr
Jun 13, 5:36 PM EDT	Special Weather Statement	PHI	Monmouth	54 min
Jun 13, 6:24 PM EDT	Areal Flood Warning	PHI	Hunterdon	4 hr
Jun 13, 6:26 PM EDT	Special Weather Statement	PHI	Monmouth, Ocean	94 min
Jun 13, 6:46 PM EDT	Coastal Flood Advisory	PHI	Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more	6 hr
Jun 13, 6:55 PM EDT	Areal Flood Advisory	PHI	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.