Alert archive / New Jersey / Flash Flood Warnings in 2014

Flash Flood Warning 31, NWS Philadelphia/Mount Holly

July 14, 2014Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 14, 2014, 4:28 PM EDT for Monmouth County, Ocean 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: Jul 14, 2014, 4:28 PM EDT (20:28 UTC)
Expired: Jul 14, 2014, 8:30 PM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

Counties Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 46 km from the middle of the area, began a volume at 20:30 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
Jul 14, 4:54 PM EDT	FLASH FLOOD	Lakewood, NJ	WIDESPREAD SIGNIFICANT STREET FLOODING IN LAKEWOOD WITH ROADS IMPASSABLE AND SOME CLOSURES.

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, 8.5 hours before the alert went out and 122 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: 200 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 726 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 113 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

644 
WGUS51 KPHI 142028
FFWPHI
NJC025-029-150030-
/O.NEW.KPHI.FF.W.0031.140714T2028Z-140715T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
428 PM EDT MON JUL 14 2014

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MONMOUTH COUNTY IN CENTRAL NEW JERSEY...
  THIS INCLUDES THE CITIES OF...LONG BRANCH...ASBURY PARK...SANDY
  HOOK...
  NORTHERN OCEAN COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 830 PM EDT

* AT 425 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN STRETCHING ALONG THE ENTIRE BORDER BETWEEN OCEAN   
  AND MONMOUTH COUNTIES. OVER 2 INCHES OF RAIN HAS BEEN EXTIMATED SO 
  FAR. ADDITIONAL RAIN IS ON THE WAY. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PLEASANT
  PLAINS...MANTOLOKING...MANASQUAN...LEISURE VILLAGE...LAKEWOOD...
  LAKEHURST...CEDAR GLEN LAKES...BRICK TOWNSHIP...WOODRUFF...
  WHITING...POINT PLEASANT BEACH AND JACKSON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

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.

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 4008 7403 4006 7402 4003 7404 3992 7445
      4018 7455 4045 7410 4042 7401 4044 7400
      4048 7403 4048 7401 4045 7399 4045 7396
      4032 7396

$$

JJM

2 follow-up statements

852 
WGUS71 KPHI 142141
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
541 PM EDT MON JUL 14 2014

NJC025-029-150030-
/O.CON.KPHI.FF.W.0031.000000T0000Z-140715T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONMOUTH NJ-OCEAN NJ-
541 PM EDT MON JUL 14 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR
NORTHERN OCEAN AND MONMOUTH COUNTIES...

AT 530 PM EDT...4.19 INCHES OF RAIN IN TWO HOURS WAS REPORTED JUST 
SOUTH OF HOWELL IN SOUTHERN MONMOUTH COUNTY. IN ADDITION...NATIONAL 
WEATHER SERVICE DOPPLER RADAR INDICATED THIS HEAVY RAIN COVERED A 
LARGE PORTION OF THE BORDER BETWEEN MONMOUTH AND OCEAN 
COUNTIES. WHILE THE AREA OF HEAVIEST RAIN IS NOW MOVING NORTH 
FURTHER INTO MONMOUTH COUNTY...RUNOFF WILL CONTINUE INTO THE 
EVENING HOURS. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL 
CREEKS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS 
WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

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.

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT MONDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.

&&

LAT...LON 4008 7403 4006 7402 4003 7404 3992 7445
      4018 7455 4045 7410 4042 7401 4044 7400
      4048 7403 4048 7401 4045 7399 4045 7396
      4032 7396

$$

JJM

920 
WGUS71 KPHI 142236
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
636 PM EDT MON JUL 14 2014

NJC025-029-150030-
/O.CON.KPHI.FF.W.0031.000000T0000Z-140715T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MONMOUTH NJ-OCEAN NJ-
636 PM EDT MON JUL 14 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR
NORTHWESTERN OCEAN AND MONMOUTH COUNTIES...

AT 631 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE 
HEAVY RAIN THAT WAS CONCENTRATED OVER THE BORDER BETWEEN MONMOUTH 
AND OCEAN COUNTIES HAS LIFTED FURTHER NORTH INTO MONMOUTH COUNTY. 
HOWEVER...FLOODING CONTINUES IN BOTH COUNTIES...SO THE FLASH FLOOD 
WARNING REMAINS IN EFFECT. MORE THAN FOUR INCHES OF RAIN WAS 
REPORTED IN SOME LOCATIONS.

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.

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT MONDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.

&&

LAT...LON 4016 7401 4000 7448 4018 7455 4045 7410
      4042 7401 4044 7400 4048 7403 4048 7401
      4045 7399 4045 7396 4032 7396

$$

JJM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 9:16 PM EDT	Special Weather Statement	PHI	Warren	89 min
Jul 13, 9:33 PM EDT	Severe Thunderstorm Warning	PHI	Warren	57 min
Jul 13, 10:18 PM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset	57 min
Jul 13, 10:27 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	47 min
Jul 13, 10:41 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Warren	2 hr
Jul 13, 10:48 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	37 min
Jul 13, 11:05 PM EDT	Special Marine Warning	PHI		85 min
Jul 13, 11:07 PM EDT	Special Weather Statement	PHI	Hunterdon, Mercer, Somerset	38 min
Jul 13, 11:21 PM EDT	Special Weather Statement	PHI	Burlington, Camden	54 min
Jul 13, 11:27 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Middlesex, Morris, Somerset	2 hr
Jul 13, 11:47 PM EDT	Special Weather Statement	PHI	Mercer, Middlesex	43 min
Jul 14, 3:54 AM EDT	Flash Flood Watch	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	45 hr
Jul 14, 4:02 AM EDT	Small Craft Advisory	PHI		24 hr
Jul 14, 4:08 PM EDT	Special Weather Statement	PHI	Monmouth	52 min
Jul 14, 4:12 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	63 min
Jul 14, 4:17 PM EDT	Special Weather Statement	PHI	Sussex	58 min
Jul 14, 4:21 PM EDT	Areal Flood Advisory	PHI	Morris, Sussex	3 hr
Jul 14, 5:33 PM EDT	Special Weather Statement	PHI	Monmouth	57 min
Jul 14, 5:54 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Warren	4 hr
Jul 14, 6:15 PM EDT	Flash Flood Warning	PHI	Hunterdon, Morris, Sussex, Warren	4 hr
Jul 14, 6:54 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Somerset	3 hr
Jul 14, 7:03 PM EDT	Severe Thunderstorm Warning	PHI	Salem	42 min
Jul 14, 7:17 PM EDT	Special Weather Statement	PHI	Mercer	58 min
Jul 14, 7:29 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	46 min
Jul 14, 7:39 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Salem	3 hr
Jul 14, 7:53 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Salem	67 min

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.