Alert archive / New Jersey / Areal Flood Warnings in 2015

Areal Flood Warning 21, NWS Philadelphia/Mount Holly

July 16, 2015Cumberland County, Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood warning at Jul 16, 2015, 7:04 AM EDT for Cumberland County, Salem County, New Jersey. It was in force for 48 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 16, 2015, 7:04 AM EDT (11:04 UTC)
Expired
Jul 18, 2015, 7:00 AM EDT
In force
48 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Cumberland County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 11:08 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 00:00Z, 11.1 hours before the alert went out and 176 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-pSkew-T log-p diagram, Wallops Is Stn, VA at 00:00Z on 2015-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 66 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 00:00Z on 2015-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
66 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
769 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

242 
WGUS41 KPHI 161104
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
704 AM EDT THU JUL 16 2015

NJC011-033-162000-
/O.NEW.KPHI.FA.W.0021.150716T1104Z-150716T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SALEM NJ-CUMBERLAND NJ-
704 AM EDT THU JUL 16 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* FLOOD WARNING FOR...
  EAST CENTRAL SALEM COUNTY IN SOUTHERN NEW JERSEY...
  NORTH CENTRAL CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 400 PM EDT THURSDAY

* AT 657 AM EDT...THE MAURICE RIVER AT NORMA IS EXPERIENCING 
  MINOR FLOODING AND IS CURRENTLY NEARING A CREST AT 4.22 FEET. 
  MINOR FLOODING IS LIKELY TO CONTINUE MOST OF TODAY.
  
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  VINELAND...MILLVILLE AND ROSENHAYN. 

* ROADWAYS NEAR THE RIVER SHOULD BE FLOODED. DO NOT DRIVE
  AROUND BARRICADES.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
THE MAURICE RIVER RISE WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

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...DONT DROWN.

LAT...LON 3953 7506 3942 7506 3945 7519 3954 7512

$$
5 follow-up statements
110 
WGUS41 KPHI 161933
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
333 PM EDT THU JUL 16 2015

NJC011-033-170200-
/O.EXT.KPHI.FA.W.0021.000000T0000Z-150717T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SALEM NJ-CUMBERLAND NJ-
333 PM EDT THU JUL 16 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS EXTENDED THE

* FLOOD WARNING FOR...
  EAST CENTRAL SALEM COUNTY IN SOUTHERN NEW JERSEY...
  NORTH CENTRAL CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 1000 PM EDT THURSDAY

* AT 326 PM EDT...THE MAURICE RIVER AT NORMA WAS EXPERIENCING MINOR 
  FLOODING. THE RIVER STAGE WAS 4.3 FEET AND WATERS WERE SLOWLY 
  RISING. MINOR FLOODING WILL CONTINUE THROUGH THE NIGHT. BE 
  ESPECIALLY CAUTIOUS AFTER DARK AS IT IS HARDER TO RECOGNIZE THE 
  EXTENT OF FLOODING.

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 3953 7506 3942 7506 3945 7519 3954 7512

$$

KRUZDLO
507 
WGUS41 KPHI 170050
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
850 PM EDT THU JUL 16 2015

NJC011-033-171100-
/O.EXT.KPHI.FA.W.0021.000000T0000Z-150717T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SALEM NJ-CUMBERLAND NJ-
850 PM EDT THU JUL 16 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS EXTENDED THE

* FLOOD WARNING FOR...
  EAST CENTRAL SALEM COUNTY IN SOUTHERN NEW JERSEY...
  NORTH CENTRAL CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 700 AM EDT FRIDAY

* AT 845 PM EDT...THE MAURICE RIVER AT NORMA WAS EXPERIENCING MINOR 
  FLOODING.  THE RIVER STAGE WAS 4.5 FEET AND SLOWLY RISING.  MINOR 
  FLOODING WILL CONTINUE THROUGH THE NIGHT.  BE ESPECIALLY CAUTIOUS 
  AS IT IS MORE DIFFICULT TO RECOGNIZE THE EXTENT OF FLOODING AT 
  NIGHT.

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 3953 7506 3942 7506 3945 7519 3954 7512

$$
468 
WGUS41 KPHI 171022
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
622 AM EDT FRI JUL 17 2015

NJC011-033-172300-
/O.EXT.KPHI.FA.W.0021.000000T0000Z-150717T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SALEM NJ-CUMBERLAND NJ-
622 AM EDT FRI JUL 17 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS EXTENDED THE

* FLOOD WARNING FOR...
  EAST CENTRAL SALEM COUNTY IN SOUTHERN NEW JERSEY...
  NORTH CENTRAL CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 700 PM EDT FRIDAY

* AT 618 AM EDT...THE MAURICE RIVER AT NORMA WAS EXPERIENCING MINOR 
  FLOODING.  THE RIVER CRESTED AT 4.5 FEET EARLY THIS MORNING...BUT 
  WILL BE SLOW TO FALL BELOW FLOOD STAGE. THUS...MINOR FLOODING IS 
  EXPECTED TO CONTINUE AT LEAST THROUGH THE DAY TODAY. 

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 3953 7506 3942 7506 3945 7519 3954 7512

$$

SFJ
782 
WGUS41 KPHI 172135
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
535 PM EDT FRI JUL 17 2015

NJC011-033-181100-
/O.EXT.KPHI.FA.W.0021.000000T0000Z-150718T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SALEM NJ-CUMBERLAND NJ-
535 PM EDT FRI JUL 17 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS EXTENDED THE

* FLOOD WARNING FOR...
  EAST CENTRAL SALEM COUNTY IN SOUTHERN NEW JERSEY...
  NORTH CENTRAL CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 700 AM EDT SATURDAY

* AT 529 PM EDT...THE MAURICE RIVER AT NORMA WAS EXPERIENCING MINOR 
  FLOODING. THE RIVER CRESTED AT 4.5 FEET EARLY FRIDAY MORNING...BUT 
  WILL BE SLOW TO FALL BELOW FLOOD STAGE. THUS...MINOR FLOODING IS 
  EXPECTED TO CONTINUE INTO SATURDAY MORNING.

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 3953 7506 3942 7506 3945 7519 3954 7512

$$

KRUZDLO
011 
WGUS81 KPHI 180338
FLSPHI

FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1138 PM EDT FRI JUL 17 2015

NJC011-033-181100-
/O.CON.KPHI.FA.W.0021.000000T0000Z-150718T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SALEM NJ-CUMBERLAND NJ-
1138 PM EDT FRI JUL 17 2015

...A FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM EDT SATURDAY FOR
EAST CENTRAL SALEM AND NORTH CENTRAL CUMBERLAND COUNTIES...

AT 1130 PM EDT...MINOR FLOODING WAS OCCURRING ALONG THE MAURICE 
RIVER. THE LEVEL OF THE MAURICE RIVER AT NORMA WAS 4.16 FEET AND IT 
WAS FALLING SLOWLY. FLOOD STAGE IS 4 FEET.

THE RIVER LEVEL WILL CONTINUE TO FALL SLOWLY OVERNIGHT AND THE RIVER 
SHOULD RETURN WITHIN ITS BANKS EARLY ON SATURDAY MORNING.

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.

&&

LAT...LON 3953 7506 3942 7506 3945 7519 3954 7512

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 8:21 PM EDTAreal Flood WarningPHICumberland6 hr
Jul 16, 2:14 AM EDTAreal Flood WarningPHICumberland6 hr

Nearby

Areal Flood Warnings in New Jersey, 2015Every areal 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.