Alert archive / New Jersey / Areal Flood Advisories in 2016

Areal Flood Advisory 113, NWS Philadelphia/Mount Holly

July 31, 2016Atlantic County, Cape May County, Cumberland County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood advisory at Jul 31, 2016, 10:08 AM EDT for Atlantic County, Cape May County, Cumberland County, New Jersey. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued: Jul 31, 2016, 10:08 AM EDT (14:08 UTC)
Expired: Jul 31, 2016, 2:15 PM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ

The radar

The Dover AFB radar (KDOX), 76 km from the middle of the area, began a volume at 14:08 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 2.1 hours before the alert went out and 156 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: 743 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 804 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 56 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted.

962 
WGUS81 KPHI 311408
FLSPHI

FLOOD ADVISORY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1008 AM EDT SUN JUL 31 2016

NJC001-009-011-311815-
/O.NEW.KPHI.FA.Y.0113.160731T1408Z-160731T1815Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAPE MAY NJ-ATLANTIC NJ-CUMBERLAND NJ-
1008 AM EDT SUN JUL 31 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* FLOOD ADVISORY FOR...
  NORTHERN CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHWESTERN ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHEASTERN CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 215 PM EDT

* AT 1008 AM EDT...DOPPLER RADAR INDICATED HEAVY RAIN DUE TO
  THUNDERSTORMS. THIS WILL CAUSE MINOR FLOODING IN THE ADVISORY AREA.
  UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN.

ADDITIONAL RAINFALL OF ONE TO TWO INCHES IS EXPECTED OVER THE AREA.
THIS ADDITIONAL RAIN WILL CAUSE MINOR FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DON'T DROWN.

&&

LAT...LON 3919 7462 3908 7471 3926 7501 3940 7487
      3926 7452

$$

SFJ

2 follow-up statements

188 
WGUS81 KPHI 311455
FLSPHI

FLOOD ADVISORY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1055 AM EDT SUN JUL 31 2016

NJC011-311504-
/O.CAN.KPHI.FA.Y.0113.000000T0000Z-160731T1815Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CUMBERLAND NJ-
1055 AM EDT SUN JUL 31 2016

...THE FLOOD ADVISORY HAS BEEN CANCELLED FOR SOUTHEASTERN CUMBERLAND
COUNTY...

THE HEAVY RAIN HAS ENDED. THEREFORE...THE FLOODING THREAT HAS ENDED.

LAT...LON 3919 7462 3908 7471 3916 7485 3920 7489
      3934 7474 3926 7452

$$

NJC001-009-311815-
/O.CON.KPHI.FA.Y.0113.000000T0000Z-160731T1815Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAPE MAY NJ-ATLANTIC NJ-
1055 AM EDT SUN JUL 31 2016

...THE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 215 PM EDT FOR NORTHERN
CAPE MAY AND SOUTHERN ATLANTIC COUNTIES...

AT 1054 AM EDT...DOPPLER RADAR INDICATED HEAVY RAIN DUE TO
THUNDERSTORMS. THIS WILL CAUSE MINOR FLOODING IN THE ADVISORY AREA.
UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN.

ADDITIONAL RAINFALL OF AROUND ONE INCH IS EXPECTED OVER THE AREA.
THIS ADDITIONAL RAIN WILL MAKE MINOR FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3919 7462 3908 7471 3916 7485 3920 7489
      3934 7474 3926 7452

$$

SFJ

337 
WGUS81 KPHI 311517
FLSPHI

FLOOD ADVISORY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1117 AM EDT SUN JUL 31 2016

NJC001-009-311527-
/O.CAN.KPHI.FA.Y.0113.000000T0000Z-160731T1815Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CAPE MAY NJ-ATLANTIC NJ-
1117 AM EDT SUN JUL 31 2016

...THE FLOOD ADVISORY HAS BEEN CANCELLED FOR NORTHERN CAPE MAY AND
SOUTHERN ATLANTIC COUNTIES...

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

LAT...LON 3919 7462 3908 7471 3916 7485 3920 7489
      3934 7474 3926 7452

$$

SFJ

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, 10:17 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, 2:06 PM EDT	Flash Flood Warning	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

Areal Flood Advisories in New Jersey, 2016 Every areal flood advisory 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.