Alert archive / New Jersey / Flash Flood Warnings in 2015

Flash Flood Warning 11, NWS Philadelphia/Mount Holly

June 1, 2015Cumberland County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 1, 2015, 7:18 PM EDT for Cumberland County, New Jersey. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 1, 2015, 7:18 PM EDT (23:18 UTC)
Expired: Jun 1, 2015, 10:15 PM EDT
In force: 3 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

County Cumberland County, NJ

The radar

The Dover AFB radar (KDOX), 68 km from the middle of the area, began a volume at 23:20 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.

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 11.3 hours before the alert went out and 67 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: 355 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 779 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 102 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.

500 
WGUS51 KPHI 012318
FFWPHI
NJC011-020215-
/O.NEW.KPHI.FF.W.0011.150601T2318Z-150602T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
718 PM EDT MON JUN 1 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 1015 PM EDT
    
* AT 716 PM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MILLVILLE...BRIDGETON...GREENWICH...SHILOH...SEABROOK FARMS...
  FAIRTON...NEWPORT MEADOWS...CEDARVILLE AND ROSENHAYN.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE AND 
PROPERTY.

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD 
DEATHS OCCUR IN VEHICLES.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING.

&&

LAT...LON 3945 7541 3946 7537 3949 7534 3949 7532
      3955 7523 3948 7512 3938 7506 3930 7529
      3934 7533 3936 7539 3941 7540 3941 7542
      3943 7541

$$

KRUZDLO

1 follow-up statement

067 
WGUS71 KPHI 020139
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
939 PM EDT MON JUN 1 2015

NJC011-020147-
/O.CAN.KPHI.FF.W.0011.000000T0000Z-150602T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUMBERLAND NJ-
939 PM EDT MON JUN 1 2015

...THE FLASH FLOOD WARNING FOR NORTHWESTERN CUMBERLAND COUNTY IS
CANCELLED...

THIS FLASH FLOOD WARNING HAS BEEN REPLACED WITH A FLOOD WARNING. 
WHILE FLOODING REMAINS POSSIBLE THIS EVENING, RAPIDLY RISING WATER IS 
NO LONGER EXPECTED.

LAT...LON 3945 7541 3946 7537 3949 7534 3949 7532
      3955 7523 3948 7512 3938 7506 3930 7529
      3934 7533 3936 7539 3941 7540 3941 7542
      3943 7541

$$

KRUZDLO

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 8:13 PM EDT	Flash Flood Warning	PHI	Somerset	5 hr
May 31, 8:43 PM EDT	Special Weather Statement	PHI	Hunterdon	62 min
May 31, 9:06 PM EDT	Flash Flood Warning	PHI	Hunterdon	5 hr
Jun 1, 1:57 AM EDT	Areal Flood Advisory	PHI	Hunterdon, Middlesex, Morris, Somerset, Warren	3 hr
Jun 1, 2:17 AM EDT	Special Weather Statement	PHI	Camden, Gloucester, Mercer, Salem	43 min
Jun 1, 2:55 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Mercer	2 hr
Jun 1, 3:20 AM EDT	Areal Flood Advisory	PHI	Mercer, Middlesex, Monmouth, Somerset	115 min
Jun 1, 3:35 AM EDT	Special Weather Statement	PHI	Atlantic, Monmouth, Ocean	25 min
Jun 1, 4:20 AM EDT	Flash Flood Watch	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 8 more	26 hr
Jun 1, 5:56 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester	3 hr
Jun 1, 10:05 AM EDT	Areal Flood Advisory	PHI	Middlesex, Somerset	4 hr
Jun 1, 10:11 AM EDT	Small Craft Advisory	PHI		4 days
Jun 1, 2:28 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Cumberland, Gloucester, Salem	32 min
Jun 1, 3:04 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester	56 min
Jun 1, 3:29 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington	46 min
Jun 1, 3:42 PM EDT	Flash Flood Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem	6 hr
Jun 1, 3:56 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May	79 min
Jun 1, 4:26 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Cape May, Ocean	3 hr
Jun 1, 4:32 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	43 min
Jun 1, 4:37 PM EDT	Tornado Warning	PHI	Salem	23 min
Jun 1, 5:27 PM EDT	Areal Flood Advisory	PHI	Cumberland, Gloucester, Salem	3 hr
Jun 1, 5:34 PM EDT	Areal Flood Advisory	PHI	Cape May	3 hr
Jun 1, 7:26 PM EDT	Special Marine Warning	PHI		34 min
Jun 1, 7:54 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May	111 min

Nearby

Flash Flood Warnings in New Jersey, 2015 Every flash flood warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.