Alert archive / New Jersey / Flash Flood Warnings in 2014

Flash Flood Warning 10, NWS Philadelphia/Mount Holly

June 13, 2014Morris County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 13, 2014, 3:46 PM EDT for Morris County, Somerset County, 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: Jun 13, 2014, 3:46 PM EDT (19:46 UTC)
Expired: Jun 13, 2014, 7:45 PM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

Counties Morris County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 100 km from the middle of the area, began a volume at 19:46 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, 5:07 PM EDT	FLASH FLOOD	East Hanover, NJ	ROUTE 10 CLOSED DUE TO FLOODING WITH THE UNDERPASS SUBMERGED.

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, 7.8 hours before the alert went out and 137 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.

657 
WGUS51 KPHI 131946
FFWPHI
NJC027-035-132345-
/O.NEW.KPHI.FF.W.0010.140613T1946Z-140613T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MORRIS COUNTY IN NORTHERN NEW JERSEY...
  NORTHERN SOMERSET COUNTY IN NORTHERN NEW JERSEY...

* UNTIL 745 PM EDT

* AT 342 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS SHOWING 
  THUNDERSTORMS ENTERING 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 PEQUANNOCK
  TOWNSHIP...LAKE TELEMARK...BUDD LAKE...WHARTON...ROCKAWAY...
  RIVERDALE...NETCONG...MOUNTAIN LAKES...MOUNT ARLINGTON...LINCOLN
  PARK...KINNELON...GREEN POND...DOVER...BUTLER AND BOONTON

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 4090 7433 4084 7432 4079 7436 4074 7436
      4066 7445 4067 7440 4060 7446 4057 7453
      4068 7472 4072 7472 4077 7486 4091 7472
      4092 7465 4097 7464 4109 7450 4103 7450
      4105 7445 4102 7443 4100 7430 4090 7427

$$

KRUZDLO

1 follow-up statement

520 
WGUS71 KPHI 132258
FFSPHI

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

NJC027-035-132308-
/O.CAN.KPHI.FF.W.0010.000000T0000Z-140613T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORRIS NJ-SOMERSET NJ-
658 PM EDT FRI JUN 13 2014

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHERN SOMERSET
AND MORRIS COUNTIES...

THE HEAVY RAIN HAS MOVED OUT OF THE AREA. THE FLASH FLOOD WARNING 
HAS BEEN CANCELLED.

LAT...LON 4090 7433 4084 7432 4079 7436 4074 7436
      4066 7445 4067 7440 4060 7446 4057 7453
      4068 7472 4072 7472 4077 7486 4091 7472
      4092 7465 4097 7464 4109 7450 4103 7450
      4105 7445 4102 7443 4100 7430 4090 7427

$$

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, 3:52 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, 4:18 PM EDT	Flash Flood Warning	PHI	Sussex, Warren	4 hr
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.