Alert archive / New Jersey / Flash Flood Warnings in 2016

Flash Flood Warning 31, NWS Philadelphia/Mount Holly

July 31, 2016Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 31, 2016, 2:06 PM EDT for Monmouth County, New Jersey. It was in force for 4 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: Jul 31, 2016, 2:06 PM EDT (18:06 UTC)
Expired: Jul 31, 2016, 6:00 PM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

County Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 41 km from the middle of the area, began a volume at 18:07 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

Brookhaven, NY (KOKX), launched 12:00Z, 6.1 hours before the alert went out and 128 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: 325 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 544 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

003 
WGUS51 KPHI 311806
FFWPHI
NJC025-312200-
/O.NEW.KPHI.FF.W.0031.160731T1806Z-160731T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
206 PM EDT SUN JUL 31 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL MONMOUTH COUNTY IN CENTRAL NEW JERSEY...

* UNTIL 600 PM EDT
    
* AT 203 PM EDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS PORTIONS
  OF THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN.
  UP TO FOUR INCHES IS POSSIBLE. BECAUSE THIS AMOUNT OF RAIN WILL
  FALL IN A SHORT PERIOD OF TIME, FLASH FLOODING IS LIKELY. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  HOWELL...TINTON FALLS...FARMINGDALE...COLLINGWOOD PARK AND EAST
  FREEHOLD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

DRIVING INTO FLOOD WATERS COULD PUT YOUR LIFE AT RISK AND COST YOU
THOUSANDS OF DOLLARS IN VEHICLE REPAIRS. FLOOD WATERS MAY BE DEEPER
THAT YOU THINK.  TURN AROUND AND FIND AN ALTERNATE ROUTE.

&&

LAT...LON 4030 7408 4018 7408 4018 7424 4030 7424

$$

KRUZDLO

1 follow-up statement

328 
WGUS71 KPHI 311937
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
337 PM EDT SUN JUL 31 2016

NJC025-311946-
/O.CAN.KPHI.FF.W.0031.000000T0000Z-160731T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONMOUTH NJ-
337 PM EDT SUN JUL 31 2016

...THE FLASH FLOOD WARNING FOR EAST CENTRAL MONMOUTH COUNTY IS
CANCELLED...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.

LAT...LON 4030 7408 4018 7408 4018 7424 4030 7424

$$

KRUZDLO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 8:15 PM EDT	Areal Flood Advisory	PHI	Hunterdon	4 hr
Jul 30, 10:19 PM EDT	Areal Flood Warning	PHI	Mercer, Middlesex, Somerset	7 hr
Jul 30, 10:32 PM EDT	Areal Flood Warning	PHI	Hunterdon	4 hr
Jul 30, 10:54 PM EDT	Special Weather Statement	PHI	Cumberland, Gloucester, Salem	36 min
Jul 31, 6:31 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Hunterdon, Mercer	44 min
Jul 31, 6:49 AM EDT	River Flood Warning	PHI	Somerset	25 hr
Jul 31, 7:04 AM EDT	Flash Flood Warning	PHI	Burlington, Ocean	4 hr
Jul 31, 7:19 AM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Mercer	3 hr
Jul 31, 7:22 AM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Somerset	4 hr
Jul 31, 7:48 AM EDT	Areal Flood Advisory	PHI	Burlington, Ocean	4 hr
Jul 31, 8:21 AM EDT	Flash Flood Warning	PHI	Hunterdon	7 hr
Jul 31, 9:59 AM EDT	Special Marine Warning	PHI		61 min
Jul 31, 10:08 AM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May, Cumberland	4 hr
Jul 31, 10:17 AM EDT	Areal Flood Advisory	PHI	Middlesex, Morris, Somerset	4 hr
Jul 31, 11:04 AM EDT	Areal Flood Warning	PHI	Hunterdon, Somerset	9 hr
Jul 31, 11:53 AM EDT	Flash Flood Warning	PHI	Hunterdon, Somerset	4 hr
Jul 31, 12:28 PM EDT	Flash Flood Watch	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 2 more	38 hr
Jul 31, 12:44 PM EDT	Areal Flood Advisory	PHI	Monmouth	4 hr
Jul 31, 2:41 PM EDT	Special Weather Statement	PHI	Mercer	49 min
Jul 31, 2:53 PM EDT	Special Weather Statement	PHI	Ocean	22 min
Jul 31, 7:34 PM EDT	Areal Flood Advisory	PHI	Warren	4 hr

Nearby

Flash Flood Warnings in New Jersey, 2016 Every flash flood warning in 2016

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.